2004 Gmc Canyon TSBs
601 Technical Service Bulletins across 16 categories
Categories
Engine
184 bulletinsThis Preliminary Information communication provides information to the technician about vehicles that have an unusual...
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noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
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personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct...
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conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with...
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conductive finish.
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct...
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conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
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and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This Preliminary Information communication provides information to the technician about vibration complaints that are...
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one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.
This PI bulletin advises the technician on the proper way to install the pistons in an engine.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
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personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
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noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft...
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issue.
This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft...
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issue.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
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and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This Preliminary Information communication provides information to the technician that General Motors and General Motors...
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of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.
This Preliminary Information communication provides information to the technician to not remove the torque converter...
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bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle...
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Identification.
This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the...
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engine is started while diagnosing for noise from the engine or transmission.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
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noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
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and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.
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Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.
OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
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noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
This Preliminary Information communication provides information to the technician to not remove the torque converter...
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bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels.
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GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility Outside Company later in this bulletin.
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels.
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GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility Outside Company later in this bulletin.
OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
This Preliminary Information communication provides information to the technician about engine block of possible...
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cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary Information communication provides information to the technician that General Motors and General Motors...
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of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.
This Preliminary Information communication provides information to the technician that General Motors and General Motors...
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of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.
These SKUs are Exhaust Manifolds with Catalytic Converters.
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The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
These SKUs are Exhaust Manifolds with Catalytic Converters.
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The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct...
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conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.
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Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to...
Read full bulletin
correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
Read full bulletin
General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
Read full bulletin
issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary Information communication provides information to the technician about vibration complaints that are...
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one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.
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Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.
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Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact Partechand/orthe Techline Customer Support Center for additional support.
This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with...
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conductive finish.
This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains...
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how toptier fuels should be used to reduce carbon build up.
This Preliminary Information communication provides information to the technician to not remove the torque converter...
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bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...
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system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.
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Technicians should refer to Service Information for information regarding most accessories. Technicians may also contact Partech and/or the Techline Customer Support Center for additional support.
This Preliminary Information communication provides information to the technician about vehicles the have a Service...
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Engine Soon Malfunction Indicator Lamp on and or engine running rough. Technician may find Diagnostic Trouble Codes P0106, P0107, P0171, P0300, P0502, P1107, and P2431. Technician will need to inspect all Manifold Absolute Pressure sensor circuits for being broken inside of the insulation near the Manifold Absolute Pressure sensor connector.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Prelimary Information communicates to the dealer a condition where the engine idle RPM is too low causing an idle vibration concern.
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Dealers are instructed to reprogram the Powertrain Control Module with the latest software availble.
This Preliminary Information communication provides information to the technician about vehicles that have a Service...
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Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300-P0308. If published Service Information diagnostics does not isolate the cause of this concern technician should check for a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, and a collapsed active fuel management lifter.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary Information communication provides information to the technician about engine block of possible...
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cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This preliminary informational bulletin provides technicians an engine repair tip for installation of pistons.
This Preliminary Information communication provides information to the technician about vehicles that may have engine...
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belt noise, rough idle, and/or Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P0014 and or P0017. If a rough idle is duplicated a Diagnostic Trouble Code P0106 may also be stored. If Service Information diagnostics do not isolate the cause of this concern inspect the camshaft actuator solenoid screens. If of the three screen are missing replace the camshaft actuator solenoid. During the inspection of the camshaft actuator solenoid if none of the screens are missing then measure the crankshaft end play to determine if it is within the specification. Typically, if excessive crankshaft end play is causing this concern, it will be obviously out of specification by as much as .050 inch or more when a pry bar is used to move the crankshaft back and forth. If crankshaft end play is acceptable, replace the camshaft actuator solenoid. If the crankshaft end play is obviously out of specification, engine replacement is suggested. In some case dealer will need to contact General Motors Product Quality Center for further assistance.
This Preliminary Information communication provides information to the technician about vehicles that may have an engine...
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rattle that star after the engine was repaired ant the repair required the crankshaft balancer removal and replacement. When the rattle noise is duplicated without the Service Engine Soon Malfunction Indicator Lamp and Service Information diagnosis does not isolate the cause the crankshaft balancer bolt should be re-torqued per the specifications states in Service Information. When the rattle noise is duplicated with the Service Engine Soon Malfunction Indicator Lamp and Diagnostic Trouble Code P0016 or P0017 and Service Information diagnosis does not isolate the cause the crankshaft balancer bolt should be re-torqued per the specifications states in Service Information. If tightening the bolt repairs the rattle noise but the Diagnostic Trouble Code P0016 or P0017 continue to set technician should follow published Service Information diagnostics for the Diagnostic Trouble Code. If Service Information diagnostics for the Diagnostic Trouble Code do not lead to a repair for the Diagnostic Trouble Code remove the crankshaft timing sprocket and inspect the crankshaft alignment pin and the related groove of the sprocket for obvious wear. If wear is present replace the sprocket and pin and retest.
This Preliminary Information communication provides information to the technician about vehicles that may have Service...
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Engine Soon Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Code P0017 may be set current or history. Technician will need to follow published Service Information and all technical services bulletins for Diagnostic Trouble Code P0017. If Service Information diagnostics do not lead to a resolution to the concern there six other reasons Diagnostic Trouble Code P0017 can be set. First the tech should check the timing of the engine. Second issue may be a crank timing gear has a loose fit to the crank follow the current version of PIP3694. The third issue may be the crank end play is excessive see the current version of PIP3694. The forth issue is the cam actuator solenoid is restricted or screens are missing, see current version of PIP3694. The fifth concern may be a cam actuator is sticking, check the current version of PIP4913. And the sixth concern could be low oil pressure or oil contamination, refer to the current version of PIP4913.
This informational bulletin provides information for Engine Squealing Type Noise on Start-up or Vibration Condition.
This Preliminary Information communication provides information to the technician about engine block of possible...
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cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains...
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how toptier fuels should be used to reduce carbon build up.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size...
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trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size...
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trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
This Preliminary Information communication provides information to the technician about vehicles that have a Service...
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Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300-P0308. If published Service Information diagnostics does not isolate the cause of this concern technician should check for a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, and a collapsed active fuel management lifter.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary Information communication provides information to the technician about vehicles that the incoming...
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caller ID may no longer be available or displayed after the Canada OnStar upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
This Preliminary Information communication provides information to the technician to help determine if the vehicle is...
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equipped with factory or aftermarket Compressed Natural Gas, Liquefied Petroleum Gas, or Bi-Fuel Systems. Technician will check for the Vehicle Emission Control Information Label. By using the engine Regular Production Option Code as well as the Vehicle Emission Control Information Label, technician can confirm the vehicle has a factory installed alternative fuel system or who the manufacturer is of the aftermarket fuel system.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats.
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Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues.
This informational bulletin provides information on OnStar VCIM is currently restricted parts.
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By working closely with our dealers and technicians, through the part restriction process, the General Motors team will gain a better understanding of any field concerns that may develop.
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size...
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trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
This Preliminary Information communication provides information to the technician about vehicles that may have the...
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OnStar wireless fidelity inoperative. Technician will need to contact General Motors Technical Assistance Center with a scan tool connect to the vehicle for further assistance.
This Preliminary Information communication provides information to the technician about vehicles that are unable to...
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receive OnStar Hands Free Calling calls and or the OnStar center is unable to perform remote services. Technician will need to push the OnStar Blue button and verify the system successfully connects to an advisor. Place an outbound personal call from the vehicle and verify it connects. Place an inbound call to the vehicle making sure to dial using the 11 digit phone number (1 + area code + number). If outbound calls can be placed and only incoming calls fail. Cycle power to the Vehicle Communication Interface Module and retest inbound call to the vehicle. If the power cycle corrects the concern and the module manufacturer is continental, replace the Vehicle Communication Interface Module. If the power cycle corrects the concern and the module manufacturer is LG, please record information from the latest version of PIC4310 and call General Motors Technical Assistance Center for further assistance. If the concern is still present after the power cycle, please record information from the latest version of PIC4310 and call General Motors Technical Assistance Center for further assistance.
This Preliminary Information communication provides information to the technician about vehicles that when dialing...
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certain numbers using OnStar Hands-free Calling, the audio is distorted or has poor quality after performing the OnStar Canada Upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
This Preliminary Information communication provides information to the technician about vehicles that have a Service...
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Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.
This Preliminary Information communication provides information to the technician about vibration complaints that are...
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one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats.
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Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues.
This Preliminary Information communication provides information to the technician about engine block that have a...
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possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, an out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...
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system that has progression tones when pressing the blue or red button. Technician will need to contact General Motors Technical Assistance Center with the scan tool data from the OnStar system.
This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction...
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Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon an upper engine and valve cleaning should be performed.
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...
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system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
This Preliminary Information communication provides information to the technician about vehicles that may have Service...
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Engine Soon Malfunction Indicator Lamp on and a reduced engine power after cold starting their engine when the ambient temperature is approximately ? 10 Fahrenheit (-23 Celsius). Technician may find Diagnostic Trouble Codes P1516, P2101, P2119, and/or P2176. Technician may find some vehicles may have an oil leak from the front or rear crank seal, cam cover gasket, or dipstick tube as well. Technician will need to determine if the concern is the result of a frozen positive crankcase ventilation system. To determine if the concern is the result of a frozen positive crankcase ventilation system on inline 4 and 5 engines disconnect the positive crankcase ventilation vacuum pipe that is attached to the rear of cam cover and inspect the inside of it for ice, moisture, and/or sludge. Also inspect the engine oil dipstick and engine oil fill cap for moisture, sludge, and/or ice. To determine if the concern is the result of a frozen positive crankcase ventilation system on inline 6 carefully disconnect the top or the bottom of the rubber positive crankcase ventilation vacuum hose that is between the #3 and #4 intake runners and inspect for ice. Also inspect the engine oil dipstick and engine oil fill cap for moisture, sludge, and/or ice. If the positive crankcase ventilation is not determined to be frozen follow Service Information diagnosis and any other bulletins or Preliminary Information that apply to the vehicle you are working on. If there is moisture, ice, and/or sludge in/on the oil fill cap, oil dipstick, and/or positive crankcase ventilation vacuum tube, this is most likely the result of a frozen positive crankcase ventilation system and the suggestions in the Preliminary Information should be followed. Technician should clean any ice, sludge, water out of the positive crankcase ventilation pipes, hoses and throttle body, and allow them to dry. Te
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...
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system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
This Preliminary Information communication advises the technician after the OnStar Canada upgrade the OnStar Vehicle...
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Diagnostic Email report is inoperative. Please communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size...
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trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the coil grounds ring terminal at the engine block for the bank with the concern and repair the wire.
This informational bulletin provides information on close-coupled converter and engine replacement.
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...
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system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles...
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that may have an OnStar Turn-By-Turn Navigation the system that is inoperative. Technician verifies there are no Diagnostic Trouble Codes are present in the Antilock Braking System and Vehicle Communication Interface Module of the vehicle. If no Diagnostic Trouble Codes found call OnStar using the Blue button on the OnStar key pad and ask the advisor for a turn by turn route. Also make a OnStar personal call and a call into the vehicle. If normal diagnostics do not lead to a resolution technician will need to call General Motors Technical Assistance Center for further assistance.
This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction...
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Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon, an upper engine and valve cleaning should be performed. Update added part numbers for the cleaner and model years.
This Preliminary Information communication provides information to the technician about vibration complaints that are...
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one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include “Vibration” “Business Associate Code” and the last 8 of the Vehicle Identification Number.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats.
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Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
This Preliminary Information communication provides information to the technician about vehicles that the OnStar system will not connect.
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Technician should record module info per the latest version of PIC4310 and contact General Motors Technical Assistance Center.
This Preliminary Information communication provides information to the technician that after replacing the Instrument...
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Panel Cluster the exchange center is unable to program the actual mileage on the odometer or the actual mileage is unknown. Dealer will need to follow dealer to the General Motors service policies and procedures manual section 3.2.4 odometer servicing.
This Preliminary Information communication provides information to the technician about vehicles that have a "Service 4...
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Wheel Drive" message displayed in the Driver Information Center. Technician may find Diagnostic Trouble Code C0327 set in the Transfer Case Control Module. Technician will need to inspect circuit 550 ground circuit for the transfer case encoder motor channel circuits.
This Preliminary Information communication advises the technician that a noise or a vibration in the vehicle that seems...
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to be abnormal may not have been there when the vehicle was purchased. Technician should look for Non - General Motors aftermarket accessories installed on the vehicle that can cause these issues.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...
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system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
This Preliminary Information communication provides information to the technician about brake rotors on new vehicles and...
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replacement parts from General Motors Service Parts Operations. Technician should be advised the costing should not be removed from the brake rotor it will wear off with normal brake usage. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
This Preliminary Information communication provides information to the technician about vehicles the have a Service...
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Engine Soon Malfunction Indicator Lamp on and or engine running rough. Technician may find Diagnostic Trouble Codes P0106, P0107, P0171, P0300, P0502, P1107, and P2431. Technician will need to inspect all Manifold Absolute Pressure sensor circuits for being broken inside of the insulation near the Manifold Absolute Pressure sensor connector.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts.
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Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
This Preliminary Information communication provides information to the technician about engine block of possible...
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cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
This informational bulletin provides information on close coupled converters and there affect on newly installed engines...
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or engines during there break in period.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats.
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Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues.
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...
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system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
This Preliminary Information communication provides information to the technician about engine block of possible...
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cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
This Preliminary Information communication advises the technician that a noise or a vibration in the vehicle that seems...
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to be abnormal may not have been there when the vehicle was purchased. Technician should look for Non - General Motors aftermarket accessories installed on the vehicle that can cause these issues.
This Preliminary Information communication provides information to the technician about vehicles that have a Service...
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Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.
This Preliminary Information communication provides information to the technician that General Motors and General Motors...
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of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats.
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Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues.
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic...
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Trouble Code B101D-37 history in the Vehicle Communication Interface Module or telematics communication interface control module. Engineering has determined that this code will only display in history on the scan tool and will not cause issues with OnStar system operation.
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A MALFUNCTION...
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INDICATOR LAMP ON OR ENGINE MISFIRE, ROUGH IDLE, EXTENDED CRANK, OR CRANK NO START IN SOME CASES. TECHNICIAN WILL NEED TO PERFORM PUBLISHED SERVICE INFORMATION DIAGNOSTICS. IF TECHNICIAN FINDS CARBON, AN UPPER ENGINE AND VALVE CLEANING SHOULD BE PERFORMED.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN.
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A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. DEALER IS TO CALL GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE IF THE CONCERN IS STILL PRESENT.
THIS INFORMATIONAL BULLETIN PROVIDES ADDITIONAL INFORMATION ON HOW TO INSTALL PISTONS AND SUGGEST WHAT TOOLS TO USE.
THIS INFORMATIONAL BULLETIN EXPLAINS THE USE OF DIESEL FUEL ADDITIVES IN AN ENGINE, ARE NOT REQUIRED UNLESS THE CUSTOMER...
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DESIRES ADDITIVES TO PREVENT FUEL CONCERNS DEPENDING ON FUEL OR TEMPERATURE RELATED CONDITIONS.
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE...
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GASKET SEALING SURFACES.
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE PROPER USE OF THE LOWER TIMING...
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GEAR TENSIONER HOLDING TOOL (EN48464). BEFORE USING THE TOOL, MAKE SURE THAT THE TOOL HANDLE AND THREADED ROD UNSCREW FROM THE WEDGE. IF THE TOOL HANDLE UNSCREWS FROM THE THREADED ROD, LEAVING THE THREADED ROD SCREWED INTO THE WEDGE APPLY THREAD LOCKER TO THE THREADS OF THE TOOL HANDLE AND SCREW IT ONTO THE THREADED ROD TO PREVENT IT FROM COMING OFF IN THE FUTURE. THIS SHOULD BE DONE BEFORE REPLACING THE CYLINDER HEAD BY FOLLOWING THE LATEST VERSION OF 06-06-01-017. THE PROCEDURE FOR INSTALLING THE WEDGE TOOL IN THE LATEST VERSION OF 06-06-01-017 ADVISES THAT THE WEDGE SHOULD BE LIGHTLY SEATED USING A COUPLE OF VERY LIGHT TAPS WITH A SMALL PLASTIC OR BRASS HAMMER. ALTHOUGH THESE SHOULD BE LIGHT TAPS, THEY SHOULD ALSO BE SOLID TAPS TO ENSURE THAT THE WEDGE IS SEATED PROPERLY.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN.
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A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. DEALER IS TO CALL GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE IF THE CONCERN IS STILL PRESENT.
BUICK/SAAB/CHEVROLET/HUMMER/GMC: SOME VEHICLES ARE EXPERIENCING, AT A COLD START FOR ENGINES, REDUCTION IN ENGINE POWER...
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AND SES LIGHT, WHEN TEMPERATURES ARE -10F (-23C) AND ALSO REAR/FRONT CRANK SEAL, CAM COVER GASKET AND DIPSTICK TUBE WILL BE LEAKING OIL. MODEL 2004-07 RAINIER, 2002-09 TRAIL BLAZER, ENVOY, 2004-12 COLORADO, CANYON, 2006-12 H3, 2005-09 97X. *PE
GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION.
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*PE UPDATED 2/17/09. *PE
MIL/SES, DTC'S P060E, P1516, P2135 AND/OR P2138 WITH REDUCED ENGINE POWER (TEST AND CHARGE BATTERY) - WITH 2.8L, 2.9L,...
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3.5L OR 3.7L ENGINE (VIN'S 6, 8, 9, E - RPO'S L52, LK5, LLV, LLR). *NJ
CHEVROLET\GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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SPECIAL COVERAGE ADJUSTMENT - ENGINE INTAKE VALVE SEAT MAY WEAR, SUCH THAT COMBUSTION LEAKAGE OCCURS. EQUIPPED WITH EITHER A 2.8L (RPO LK5) 4 CYLINDER OR 3.5L (RPO L52) 5 CYLINDER ENGINE. *NJ CSC LETTER WAS RECEIVED. UPDATED 3/9/09. *PE
A ROUGH IDLE / RUNNING CONCERN MAY BE ENCOUNTERED WITH A P0014 AND / OR P0017 DTC.
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*TT
ROUGH IDLE WITH DTC P0014 AND/OR P0017 - INSPECT CAM ACTUATOR SOLENOID SCREENS AND CRANKSHAFT END PLAY.
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*TT
BLOWER MOTOR INOPERATIVE IN ANY ONE OR MORE BLOWER SPEED.
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*TT
SERVICE ENGINE SOON LIGHT AFTER INTERNAL ENGINE REPAIRS DUE TO DIAGNOSTIC TROUBLE CODE P0017.
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*TT
P0300 DUE TO RANDOM MISFIRES NOT FELT - POSSIBLE ACCESSORY PULLEY.
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*TT
INFORMATION ON USE OF BOLT EXTRACTOR TOOL KIT PART NUMBER EN-47702 FOR REMOVING BROKEN CYLINDER HEAD OR MAIN BEARING CAP BOLTS ON INLINE TRUCK ENGINES.
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*TT
04-06-04-081A EXHAUST VALVE SEAL AND SPRING REPLACEMENT SUPPLEMENT.
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*TT
ENGINE VIBRATION AFTER ENGINE OR CRANKSHAFT REPLACEMENT.
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*SC
DRIVE BELT NOISE - ADJUST OR REPLACE IDLER PULLEY BRACKET.
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*TT POTENTIAL ALIGNMENT AND BELT ISSUES. *TT
ENGINEERING INVESTIGATION/PREMATURE REAR BRAKE SHOE WEAR.
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*TT PREMATURE REAR DRUM BRAKE WEAR. UPDATED ON 10/03/07. *NJ UPDATED 9/30/08. *PE
SERVICE ENGINE SOON (SES) LIGHT AND REDUCED ENGINE POWER DUE TO A P0507 DIAGNOSTIC TROUBLE CODE.
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*TT
ENGINEERING INVESTIGATION OF THE HVAC BLOWER RESISTOR AND MOTOR.
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*TT UPDATE. TT
RPM BEING TO LOW MAY CAUSE VIBRATION AT IDLE AND OR A ROUGH IDLE.
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*EH
EXHAUST SYSTEM POPPING SNAPPING NOISE WHEN VEHICLE IS HOT AT IDLE OR IMMEDIATELY AFTER VEHICLE IS SHUT OFF.
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*EH
NEW CYLINDER BORE LINER/PISTON SLEEVE REPLACEMENT PROCEDURE.
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*TT
SUPPLEMENT TO 04-06-04-081 - PART NUMBER INFORMATION - 2004 AND 2005 3.5L L52 5 CYLINDER ENGINES.
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*TT
FLASHING SERVICE ENGINE SOON LIGHT WITH POSSIBLE MISFIRE AND P0300-P0304 DIAGNOSTIC TROUBLE CODE.
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*EH ENGINE EXCHANGE PROGRAM. *TT
SERVICE ENGINE SOON LIGHT DUE TO A P0171 DIAGNOSTIC TROUBLE CODE.
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*EH 3221A NOT YET RECEIVED. *TT UPDATE. *TT
EXHAUST BUZZ AT APPROXIMATELY 2100 RPM WIRH A POSSIBLE CAUSE OF THE HEAT SHIELD CONTACT WITH EXHAUST MANIFOLD.
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*EH
ENGINE CONTROL CONCERNS DUE TO INTERMITTENT POWER CONTROL MODULE CONNECTION LOSS.
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*EH
CYLINDER LINER REPLACEMENT INFORMATION - INLINE TRUCK ENGINES.
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*EH
SERVICE ENGINE SOON LIGHT DUE TO A P0171 DIAGNOSTIC TROUBLE CODE.
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*TT
VIBRATION AT IDLE AND/OR ROUGH IDLE.
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(EXTENDED CREW CABS ONLY). *JB
ABS BRAKE VALVE BLEED PROCEDURE CORRECTION.
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*SC
MISFIRE AND POSSIBLE P0300-P0305 DIAGNOSTIC TROUBLE CODES.
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SERVICE ENGINE SOON LIGHT ON TOO. *SC
ENGINE VIBRATION/MOAN.
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*TC
END OF ENGINE EXCHANGE PROGRAM FOR 3.5 L52 AND 2.8 LK5 ENGINES.
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*TT
BLOWER MOTOR MAY STAY ON ALL THE TIME OR HAVE ERRATIC BLOWER MOTOR OPERATION.
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*TT
SERVICE ENGINE SOON LAMP BEING ILLUMINATED.
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WITH DIAGNOSTIC TROUBLE CODES P0507, P0621 OR P0622. GM VOICEMAIL EXPRESS. *TT
VIBRATION AT HIGHWAY SPEEDS CAUSED BY THE TIRES FLAT SPOTTING AS A RESULT OF THE TIRES REACHING HIGH TEMPERATURES AND THEN COOLING WHILE PARKED.
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ENGINEERING IS CURRENTLY TESTING A REDESIGN OF THE TIRE. *TT
VARIOUS DRIVEABILITY, AIR CONDITIONER, INSTRUMENT PANEL CLUSTER, ENGINE CONTROL, TRANSMISSION, EVAP CONCERNS.
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*TT
FLUTTERING TYPE NOISE WITH THE HVAC BLOWER MOTOR ON.
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*TT
OIL CONSUMPTION AND/OR BLACK SMOKE FROM EXHAUST.
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*TT
PCM (POWERTRAIN CONTROL MODULE) PIN FIT CAUSING VARIOUS DRIVEABILITY, A/C, IPC (INSTRUMENT PANEL CLUSTER), ENGINE CONTROL, TRANS, EVAP CONCERNS.
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*TT
ENGINE- DIAGNOSTIC TROUBLE CODE P0507.
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*MR
WHINE OR RATTLE NOISE FROM ENGINE.
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*MR
4.3 4.8 5.3 6.0 LR4 LU3 LM7 L59 LQ4 LQ9 ENGINES- EVAP CODE P0442.
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*MR
ENGINE COOLANT GAUGE DROP ON ACCELERATION.
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*MR
2.8 LK5 3.5 L52 ENGINE - COOLANT TEMPERATURE GAUGE DROPS ON ACCELERATION.
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SIT BULLETIN 1460312. *TT
WHINE TYPE NOISE FROM ENGINE.
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3.5L L52. *TT
VACUUM TYPE HISSING NOISE FROM ENGINE.
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THIS NOISE IS MORE NOTICEABLE WHEN THE VEHICLE IS PARKED IN AN ENCLOSED AREA WITH THE HOOD UP. 3.5 L52 ENGINE. SIT BULLETIN 1409740. *TT
THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE...
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TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT
MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS.
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*TT
Other
116 bulletinsThis PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
Canadian Customers Unable To Place Calls In The United States
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
Essential Tools that Include Consumable Parts (U.S.
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Only)
Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify...
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the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component
IPC Odometer Programming Method Quick Reference Guide
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change.
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Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This informational bulletin provides information for dealers how to submit a product information report (PIR) (Canada...
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Only).
This informational bulletin provides information for the GM of Canada OnStar Cellular Communication Upgrade to 3G/4G LTE...
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for vehicles that may need an upgrade.
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change.
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Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles.
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A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
This informational bulletin provides information on how to use floor mats.
This information bulletin provides the dealers on how to submit a product information report.
This Preliminary information communicates
This informational bulletin provides information on how to use floor mats.
This information bulletin provides the dealers on how to submit a product information report.
This Preliminary Information communication provides information to the technician about connectivity concerns when...
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connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.
This information bulletin provides the technician the information on how to properly clean a metal surface using the...
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correct tool.
This informational bulletin provides information on what products GM has to aid in the eliminating unwanted odors in a...
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vehicle.
This information bulletin provides the dealers on how to submit a product information report.
This informational bulletin provides a vibration analysis worksheet the technician can use in conjunction with the...
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appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.
This informational bulletin provides a revision for 11-00-89-005D to add additional Mandatory Minimum Tables and...
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additional information concerning Policy decision making.
This informational bulletin provides a revision for 02-08-98-002C to add the 2010-2013 model years and revise the...
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Approved Refinish Materials booklet information.
This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that...
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may be un necessary.
This information bulletin provides the technician the information on how to properly clean a metal surface using the...
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correct tool.
This informational bulletin provides information on what products GM has to aid in the eliminating unwanted odors in a...
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vehicle.
This information bulletin provides the dealers on how to submit a product information report.
This preliminary information bulletin provides information on installing new rivets on the accessory tonneu cover to...
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correct a customers comments on the cover seeming loose
This informational bulletin provides information for the GM of Canada OnStar Cellular Communication Upgrade to 3G/4G LTE...
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for vehicles that may need an upgrade.
This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that...
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may be un necessary.
This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that...
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may be un necessary.
This information bulletin provides the technician the information on how to properly clean a metal surface using the...
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correct tool.
This informational bulletin provides information on what products GM has to aid in the eliminating unwanted odors in a...
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vehicle.
This information bulletin provides the dealers on how to submit a product information report.
This informational bulletin provides information on how to use floor mats.
This information bulletin provides the dealers on how to submit a product information report.
This informational bulletin explains the Road Force balancers and what they can do for customer concerns.
This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
This informational bulletin provides information to dealership personnel on upgrading certain OnStar...
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Analog/Digital-Ready Systems to OnStar Generation 6 Digital-Capable System.
This informational bulletin is to assist with the identification of issues that are not considered warrantable.
This information bulletin provides the technician with additional information on fixing the vehicle right the first time...
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by listing possible concerns to specific vehicles.
This informational bulletin provides information on fix it right for first time issues.
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This informational bulletin provides directions on submitting different PIRs
This technical bulletin provides a revision of 99-04-20-002G to add 2013-2014 model years.
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change.
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Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components.
This information provides the proper way to install the floor mats .
This informational bulletin provides a step by step procedure on how to properly use the GM chemicals to eliminate...
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unwanted odors in vehicles and which products to use for each application.
This informational bulletin explains the Road Force balancers and what they can do for customer concerns.
This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles.
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A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
This informational bulletin explains the programming method quick reference guide for the IPC Odometer.
This informational bulletin provides a revision for 04-06-04-047K to add the 2014 model year.
This informational bulletin provides a revision for 04-06-04-047 to add the 2014 model year.
This informational Bulletin provides a revision for 10-08-110-001 to add the 2012-2014 model years.
This informational bulletin provides information on newly release bulletins used to fi the vehicles in the field the...
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first time.
This informational bulletin provides information on Clarification of Use - Dealer Empowerment Labor Operations and Customer Enthusiasm (U.S.
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Only)
This informational bulletin provides information on Behavior of Non-Upgraded OnStar Equipped Vehicles Operating in...
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Canada after Decommissioning of 2G CDMA Cellular Networks
This informational bulletin provides information for dealers how to submit a product information report.
This informational bulletin provides explanation on how to take snapshot data with a Tech 2 and upload it to a computer...
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and where to email the info to.
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This Preliminary Information communication advises the technician that if OnStar is unable to configure the vehicle...
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after the OnStar 15-08-44-001 upgrade and Onstar receives a 118 error code when attempting to configure the vehicle. Dealers should receive a sheet with the kit that provides steps to assist with handling this error. Dealer will follow one of the listed steps to resolve the issue. If there are still configuration issues, please contact the OnStar Technical Assistance Centre for assistance.
This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles.
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A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles.
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A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
This Preliminary Information communication provides information to the technician about connectivity concerns when...
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connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.
This informational bulletin provides a quick guide to updating which model vehicle after replacing the IPC.
This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that...
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may be un necessary.
This Preliminary Information communication advises the technician that if OnStar is unable to configure the vehicle...
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after the OnStar 15-08-44-001 upgrade and Onstar receives a 118 error code when attempting to configure the vehicle. Dealers should receive a sheet with the kit that provides steps to assist with handling this error. Dealer will follow one of the listed steps to resolve the issue. If there are still configuration issues, please contact the OnStar Technical Assistance Centre for assistance.
This preliminary information bulletin provides information on installing new rivets on the accessory tonneu cover to...
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correct a customers comments on the cover seeming loose
This informational bulletin provides a list off all the issues revolving around new vehicles for a one stop place to...
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find growing concerns around them.
This informational bulletin provides information to dealership personnel on upgrading certain OnStar...
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Analog/Digital-Ready Systems to OnStar Generation 6 Digital-Capable System.
This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
This Preliminary Information communication provides information to the technician that fluid contamination may be...
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directed to one of the following testing centers according to the type of fluid needing testing. Dealer should send the correct fluid to the proper testing center.
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change.
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Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
This Preliminary Information communication provides information to the technician about vehicles that have the OnStar...
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system does not respond properly to some numbers and/or voice commands. Dealer should direct the customer to review the operational characteristics in the OnStar Users Guide.
This Preliminary Information communication provides information to the technician about vehicles that when a Canadian...
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customer may comment that when they travel to the United States, they are unable to connect to OnStar or use hands free calling. Dealer can advise the customer that the existing cell phone provider not having roaming agreements in areas outside of Canada. At this time, a customer has the option of contacting OnStar to have a 500 number loaded for OnStar operation while in the United States.
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE.
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TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS MISSING NEEDLE BEARINGS. BE SURE TO CLEAN THE OIL DRAINS TO RETRIEVE THE NEEDLE BEARINGS. EACH ROLLER ROCKER HAS 66 BEARINGS.
THIS INFORMATIONAL BULLETIN PROVODES INFORMATION ON THE GM OF CANADA ONSTAR CELLULAR COMMUNICATION UPGRADE.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN.
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THE VEHICLE MAY BE UNABLE TO CONNECT TO ONSTAR USING THE WHITE, BLUE OR RED ONSTAR BUTTONS.
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
GM: INFORMATION ON FIXING MULTIPLE SITUATIONS RIGHT THE FIRST TIME.
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*RM
INFORMATION ON UPGRADING CERTAIN ONSTAR GENERATION 5 ANALOG/DIGITAL-READY SYSTEMS TO ONSTAR GENERATION 6 DUAL-MODE (ANALOG/DIGITAL).
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*TT
OIL LIFE SYSTEM RESET PROCEDURES-TRUCKS.
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BUICK TERAZZA 2005, GMC SIERRA DENALI 2002-2003, GMC B7 CHASSIS MEDIUM DUTY 2003-2005 AND GMC 560 C-SERIES 2003-2005 *SC
POSSIBLE LEAK IN THE AIR INDUCTION SYSTEM.
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*EH
TEMPERATURE COOLANT GAUGE LOW OR INOPERATIVE.
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*EH
WATER ON DRIVER'S FLOOR.
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*EH
RUB OR SCRAPE NOISE FROM REAR AXLE AREA ON TURNS.
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*EH
SOME 2004 FULL SIZE TRUCKS AND UTILITIES MAY EXPERIENCE A DIAGNOSTIC TROUBLE CODE P0442.
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*TT
PRESSURE CONTROL SOLENOID OUTPUT FUNCTION INOPERATIVE ON TECH 2.
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*SC
BROKEN HEAD BOLT REPAIR.
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*TC
TWO TYPES OF AUDIBLE WARNINGS LOCATIONS AND SOUNDS.
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*TC
VIBRATION AT HIGHWAY SPEEDS.
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*SC
RUB OR SCRAPE NOISE FROM REAR AXLE AREA ON TURNS.
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*MJ
FRONT AXLE GROWL NOISE IN 2WD MAY NOT OCCUR IN 4WD.
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*TT
DINGHY AND OR/ DOLLY TOWING - OWNERS MANUAL INFORMATION.*MR
Z71 4WD ONLY ROUGH STIFF BOUNCY RIDE.
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*MR
TEMPERATURE COOLANT GAUGE LOW OR INOPERATIVE.
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*MR
CRANK NO START OR START STALL; MAY SET ONE OR MORE OF THE FOLLOWING CODES: B1373 B1442 B2957 B3031.
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*MR
RATTLE NOISE REAR OF EXTENDED CAB.
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*MR
FRONT AXLE GROWL NOISE IN 2WD MAY NOT OCCUR IN 4WD.
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SIT BULLETIN 1459942. *TT
XM RAPID ACTIVATION UTILIZATION.
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*MR
XM DEALER ASSISTANCE LINE INFORMATION.
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*TT
Electrical
71 bulletinsVehicle Wide Programming (VWP) is a new process to update software on GM Vehicles.
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It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.
Programming And Activation Of Replacement OnStar Modules.
Programming And Activation Of Replacement OnStar Modules.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
This service bulletin provides information on Module Harvesting.
This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a...
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condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
OnStar Voice Fallback Number Update Some customers may have received a letter from OnStar stating that "We recently...
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tried to provide a software update to the OnStar hardware in your vehicle. However, your system could not be updated remotely. As a result, some of your OnStar system functions may not be working as expected." The customer is further instructed in this letter to "Please contact your dealer or any dealer near you as soon as possible to schedule an appointment for this no-cost software update. Your dealer will reprogram your OnStar module with an update. This is for vehicles that have previously received the Canada upgrade as described in Service Bulletin #15-08-44-001F."
IPC Odometer Programming Method Quick Reference Guide Season Odometer Programming Methods in Use Today 1.
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IPC reprogramming and setup using the service programming system (SPS). 2. Odometer setup at the electronic service center (ESC) when using an exchange IPC/DIC. 3. Tech 2 The Tech 2 is used to set up a replacement BCM, which includes loading the odometer value that is displayed and stored in the IPC. A replacement IPC will display the previously stored vehicle odometer value, communicated from the BCM, after cycling the ignition or driving the vehicle. *The odometer programming is integrated as part of the BCM programming procedure. It is not a stand-alone event.
This informational bulletin provides information on key code security rules and information on GM keycode look-up...
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applications.
This informational bulletin provides information on key code security and information on GM key code look up...
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applications.
This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not...
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when replacing a module.
This bulletin provides information for electrical ground repairs using new replacement fasteners with "conductive...
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finish".
This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not...
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when replacing a module.
This informational bulletin updates information on electrical ground repairs using new replacement fasteners with...
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conductive finish.
This informational bulletin provides information on control module diagnostics and configuration, programming using...
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the TIS Service Programming System (SPS), set-up and warranty.
This informational bulletin provides information and rules for GM keycode look up applicationa dn the key code security...
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rules and regulations for Canada only.
This informational bulletin explains how to update the older Onstar module software to new software over GSA.
This information bulletin explains the labor operation numbers used for submitting warranty claims and how to setup, and...
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reprogram modules.
This informational bulletin provides information and rules for GM keycode look up applicationa dn the key code security...
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rules and regulations for Canada only.
This informational bulletin provides information on communication with OnStar module after Canadian cellular upgrade.
This informational bulletin provides information on key codes security rules and information on GM key code look up...
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application.
This informational bulletin provides information on key code security and information on GM key code look up...
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applications.
This informational bulletin provides information and rules for GM keycode look up applicationa dn the key code security...
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rules and regulations for Canada only.
14609 - Special Coverage.
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On certain 2004-2009 model year Chevrolet Colorado and GMC Canyon extended cab vehicles, the wires in the rear-door-wire harness may fatigue and break. If one or more of the wires break, the vehicle?s airbag readiness light/SIR light will illuminate. A broken wire may also trigger diagnostic trouble codes(s) (DTC) B0057, B0058, B0059, B0064, B0065, and B0066, and could also disable the front driver/passenger seat-belt pretensioner. This condition does not affect the operation of the vehicle?s airbags. Dealers are to replace the rear door wire harness.
This Preliminary Information communication provides information to the technician about vehicles that has a red LED and...
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DTC B2455 setting current in the Vehicle Communication Interface Module after performing Canada upgrade. Technician will need to gain access to the Vehicle Communication Interface Module. After gaining access to the Vehicle Communication Interface Module pull the tape back on the X2 connector then tape the bare wires individually to prevent them from shorting.
This Preliminary Information communication provides information to the technician about vehicles that has a red LED and...
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DTC B2455 setting current in the Vehicle Communication Interface Module after performing Canada upgrade. Technician will need to gain access to the Vehicle Communication Interface Module. After gaining access to the Vehicle Communication Interface Module pull the tape back on the X2 connector then tape the bare wires individually to prevent them from shorting.
This informational bulletin provides information on communication with OnStar module after Canadian cellular upgrade.
This Preliminary Information communication provides information to help the dealership technicians perform a parasitic...
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drain test for the OnStar module. When performing battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system.
This Preliminary Information communication advises the technician that, when testing any circuit for open or resistance,...
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it is imperative that all related terminal pin fit and tension be checked when the test steps require disconnection of the connector or component, prior to any component replacement. Always use the recommended terminal test tool during these tests.
This Preliminary Information communication provides information to the technician about vehicles may have a no power or no connect concern.
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Technician will find that the OnStar led is red and Diagnostic Trouble Code U1500 is set. Technician will need to replace the Vehicle Communication Interface Module if the Station Identification number falls in the ranges 14,000,000 - 16,000,000 or 22,000,000 - 23,200,000.
This Preliminary Information communication provides information to the technician about vehicles that during battery...
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parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system. Technician should understand the power cycles of the various OnStar systems. All Generation 6, 7, 8, and 9 systems are powered up continuously for 48 hours from ignition off. After 120 hours from ignition off, these systems then completely power off. The Onstar modules draw: * IGN ON - 240 to 400 Milliamp. * IGN OFF - 3 to 20 Milliamp for 48 hours or 120 hours on Gen 9 and vehicle communication platforms. * IGN OFF - 0.2 to 0.8 Milliamp after 48 hours or 120 hours on Gen 9 and vehicle communication platforms.
This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle...
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Communication Interface Modules (VCIM) (GMNA Only)
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE AN ONSTAR SYSTEM THAT WILL NOT POWER UP.
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TECHNICIAN SHOULD TURN OFF THE IGNITION AND CANCEL RETAINED ACCESSORY POWER. AFTER THE VEHICLE HAS POWERED DOWN REMOVE POWER TO THE ONSTAR MODULE FOR FIVE MINUTES. AFTER THE POWER HAS BEEN REMOVED FOR FIVE MINUTES, IF THE ONSTAR SYSTEM IS WORKING RELEASE THE VEHICLE. IF THE ONSTAR SYSTEM IS STILL INOPERATIVE CONTINUE WITH PUBLISHED SERVICE INFORMATION DIAGNOSTICS.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN, IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON...
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MODE AFTER THE ONSTAR CANADA UPGRADE TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON...
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MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE.
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC...
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DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT ,WHEN TESTING ANY CIRCUIT FOR OPEN OR RESISTANCE,...
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IT IS IMPERATIVE THAT ALL RELATED TERMINAL PIN FIT AND TENSION BE CHECKED WHEN THE TEST STEPS REQUIRE DISCONNECTION OF THE CONNECTOR OR COMPONENT, PRIOR TO ANY COMPONENT REPLACEMENT. ALWAYS USE THE RECOMMENDED TERMINAL TEST TOOL DURING THESE TESTS.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON...
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MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE.
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC...
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DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM.
GMC/CHEVROLET: HEADLAMP SWITCH INOP IN MANUAL MODE ONLY.
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HEADLIGHTS ARE ALWAYS FUNCTIONAL IN AUTOMATIC MODE. THIS COULD BE THE RESULT OF A RELAY INSTALLED IN THE INCORRECT POSITION WITH THE UBEC. *PE
SES LIGHT DUE TO A P060E DTC INSPECT APP AND TP CIRCUITS.
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*KB
SERVICING THE IGNITION SWITCH AND/OR PASSLOCK SENSOR.
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*TT
BATTERY DRAW. GM. TECH LINK.
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*TT
20A STOP FUSE OPENS AT TIMES.
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*TT
CRUISE CONTROL AND/OR SUNVISOR VANITY LIGHT INOPERATIVE FUSE OPEN.
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*TT
UNWANTED HAZARD LIGHTS ON , IPC INOPERATIVE., DOOR LOCKS INOPERATIVE.
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NO START, BATTERY DEAD. *TT
OWNERS MANUAL INFORMATION INCORRECT.
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THE OWNERS MANUAL INDICATES FOR 4WD VEHICLES, IF THE VEHICLE IS TO BE DINGHY OR DOLLY TOWED WITH THE KEY IN THE LOCK POSITION, THE CLSTR AND RDO BATT FUSES SHOULD BE PULLED FROM THE INSTRUMENT PANEL FUSE BLOCK TO CUT BATTERY POWER. *TT
MULTIPLE ELECTRICAL CONCERNS INSTRUMENT PANEL CLUSTER INDICATORS ILLUMINATE POSSIBLE NO START.
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*SC
TECH 2 DISPLAYS ASTERISK FOR THE LEFT FRONT WHEEL SPEED SENSOR.
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*TT
PROGRAMMING THE PCM. *EH
PCM CONTROL PLACEMENT.
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*EH
BATTERY MESSAGE DISPLAYED IN DRIVERS INFORMATION CENTER.
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*EH
POSITIVE BATTERY CABLE PROTECTIVE COVER MISSING OR BROKEN.
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*EH
PCM PROGRAMMING CONCERNS.
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GMT355. *TT
PASSENGER HEATED SEAT AND/OR LUMBAR INOPERATIVE FUSE 18 OPEN.
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*TT
FUSE 42 OPENS WHEN USING THE POWER WINDOW OR SPORADIC DOOR LOCKS.
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*TC UPDATE 11/23/09. *PE UPDATED ON 06/27/2011. *KB
NO CRANK, NO START IGN FUSE #23 IN THE UBEC MAY BE OPEN.
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*SC
NEW VEHICLE AND SNOWPLOW MODEL APPLICATION INFORMATION.
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TWO NEW PLUG-IN HARNESS KITS. WESTERN PRODUCTS SERVICE BULLETIN. *TT
DIAGNOSTIC TROUBLE CODE (DTC) P0351 - P0358 MISLABELED DTCS.
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DTC DISPLAYED ON TECH 2 MAY NOT REFLECT ACTUAL IC CIRCUIT OR COIL/MODULE OR WHERE PROBLEM IS DETECTED. *TT
APP SENSOR 2 AND/OR TP SENSOR 2 SIGNAL CIRCUIT VOLTAGES DROP.
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*TT
STARTER CLICKS - NO CRANK CONDITION.
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*TT
DIAGNOSTIC TROUBLE CODE (DTC) P0621 AND/OR P0622.
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BATTERY CHARGE INDICATOR ILLUMINATED ON INSTRUMENT PANEL CLUSTER (IPC). *TT
BATTERY MESSAGE DISPLAYED ON DIC AFTER A COLD START.
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NO CODES SET. *TT
BATTERY MESSAGE DISPLAYED AND DIC COLD START.
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NO CODES SET. *TT
BATTERY LIGHT AND OR MESSAGE ON DIC WITH OR WITHOUT P0621, P0622.
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*MR
NO CRANK, NO START, FUSE 23 OPEN.
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*MR
UNWANTED HAZARD LIGHTS ON , IPC INOPERATIVE., DOOR LOCKS INOPERATIVE.
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NO START, BATTERY DEAD. *MR
DIAGNOSTIC TROUBLE CODE P0315, OIL LIFE MONITOR RESET AND/OR RADIO LOCK OUT AFTER SWAPPING BODY CONTROL MODULE (BCM).
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*TT
POWER TRAIN CONTROL MODULE P12 REPLACEMENT.
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SIT BULLETIN 1406647. *TT
BODY CONTROL MODULE (BCM) REPLACEMENT, ODOMETER PROGRAMMING.
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SIT BULLETIN 1408724. *TT
WILL NOT TURN ON ANY WARNING LIGHTS-BODY CONTROL MODULE.
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*MN
Body & Paint
44 bulletinsThis Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and...
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Replacement Guidelines.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and...
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Replacement Guidelines.
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers.
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Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers.
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Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This informational bulletin provides information on the appearance of chromed aluminum wheels due to chemical staining,...
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pitting corrosion and/or spotted.
This informational bulletin provides information pre-painting/cleaning process for TPO plastic fascias.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
GM: THE FRONT OR REAR DOOR MAY NOT OPEN FROM THE INSIDE OR OUTSIDE HANDLE, THE DOOR WILL NOT UNLOCK WITH ANY METHOD.
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THE PROBABLY CAUSE AN INCORRECT INSTALLATION OF A HANDLE COMPONENT. *RM UPDATED ON 7/26/2013. ALL 2014 AND PRIOR GM PASSENGER CARS AND TRUCKS. *KB
GM: ON SOME TRUCK MODELS THERE IS SOME FRAME CORROSION.
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*RM UPDATED ON 5/2/2012. *KB
GM: THE REAR CARPET MAY BE DAMP OR WET.
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THE VEHICLES CENTER STOP LIGHT MIGHT ALSO APPEAR TO NOT BE SEALED TO THE CAB EXTERIOR. *RM
GM: WIPERS CYCLE SEVERAL TIMES, THEN PARK IN THE MIDDLE OF THE WINDSHIELD.
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*AK UPDATED 08/5/02013 *JS
REAR TAILGATE HARD TO OPEN.
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*TT
REMOVAL OF DOOR TRIM.
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*EH
DOME LIGHT STAYS ON OR THE DOOR AJAR MESSAGE IS ILLUMINATED.
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*TT
ORANGE PEEL PAINT CONDITION.
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*TT
REPAIR PROCEDURE FOR PAINT CONCERN.
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*EH
VIEW MIRROR OPERATION OPTION DF8 AND DC4.
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*EH
BUMPER BOLT BREAKAGE DURING REMOVAL PRIOR TO INSTALLING TRAILER HITCHES.
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*EH
DRIVERS OR PASSENGERS DOOR SWITCH BEZEL.
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*EH
BUMPER BOLT AND OR NUT BREAKS WHEN ATTEMPTING REMOVAL.
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*TT
DOOR GLASS BECOMES LOOSE FROM THE REGULATOR.
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*TT
BODY SIDE MOLDINGS BECOME LOOSE/RPO B84.
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*SC
ROOF DITCH MOLDING MAY LOOSE.
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*SC
WATER LEAK ON DRIVERS FLOOR.
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*TC
WHEN REMOVING THE REAR BUMPER TO INSTALL A TRAILER HITCH, THE RIGHT BOLT MAY BREAK OR THE SPOT WELD HOLDING THE NUT IN PLACE BREAKS LOOSE.
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*TT
ODOMETER READS 0 MILES AFTER REPLACING THE INSTRUMENT PANEL CLUSTER (IPC).
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*TT
WATER LEAK ON DRIVERS FLOOR.
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*TT
UNDERHOOD WHINE OR RATTLE TYPE NOISE.
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*TT
ALARM SOUNDS WHEN UNLOCKING DOORS WITH A KEY.
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*TT
REMOTE KEYLESS ENTRY FEEDBACK/DOOR LOCK AND LANGUAGE PERSONALIZATION.*MR
PAINT ORANGE PEEL CONDITION.
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*TT
WIND NOISE AT WINDSHIELD.
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*MR
ROOF WELD JOINT REVEAL MOLDING REPLACEMENT (DITCH MOLDING).
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*TT
DOME LIGHT ON DOOR AJAR MESSAGE.
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*MR
INTENTIONAL LACK OF SEALANT AT HEADBOARD OF PICKUP BOX.
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*MR
WATER LEAK LEFT RIGHT FLOOR.
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*MR
REGULAR PRODUCTION ACCESSORY INSTALLATION INFORMATION.
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DEALERSHIPS SHOULD REFRAIN FROM INSTALLING BED EXTENDERS. THE CURRENT BUILD OF CERTAIN VEHICLES PREVENTS THE TAILGATE FROM BEING CLOSED WHEN THE BED EXTENDER BRACKETS ARE PROPERLY INSTALLED. NEW BRACKETS ARE BEING DESIGNED TO REVOLVE THIS ISSUE. SIT BULLETIN 1408806. SERVICE VME. *TT
Pre-Delivery & Maintenance
40 bulletinsThis service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes...
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E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and...
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the warranty transaction submission procedures that support the Personal Property Damage process.
Vehicle Recalls
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate...
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Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada...
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Only).
This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S.
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Only).
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
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Spin-On Oil Filters.
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and...
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the warranty transaction submission procedures that support the Personal Property Damage process.
This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada...
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Only).
This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S.
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and Canada.
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
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Spin-On Oil Filters.
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
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Spin-On Oil Filters.
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
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Spin-On Oil Filters.
This service bulletin provides policy information on warranty administration guidelines for multiple repairs with...
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independent causes (GM Canada Dealers Only).
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
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Spin-On Oil Filters.
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate...
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Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.
This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada...
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Only).
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This warranty administration bulletin provides information on the Clarification of Use for Dealer Empowerment Labor...
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Operations and Customer Enthusiasm
This informational bulletin provides information regarding the aftermarket device interference with onstar diagnostic...
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service.
This warranty administration bulletin provides information regarding customer concerns not duplicated and which labor...
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operations to claim when the concern cannot be duplicated. Also provides information on how to submit claims within the global warranty managment.
This warranty administration bulletin provides information on what should be considerd warranty damage or damage that...
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was at fault of the cutomer and how to properly claim them on the warranty paperwork
This warranty administration bulletin provides policy information with the field action courtesy transportation policy.
This informational bulletin provides information regarding the aftermarket device interference with onstar diagnostic...
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service.
This warranty administration bulletin provides information regarding customer concerns not duplicated and which labor...
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operations to claim when the concern cannot be duplicated. Also provides information on how to submit claims within the global warranty managment.
This warranty administration bulletin provides information on what should be considerd warranty damage or damage that...
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was at fault of the cutomer and how to properly claim them on the warranty paperwork
This warranty administration bulletin provide policy information on clarification of use-dealer empowerment labor...
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operations and customer enthusiasm.
This technical bulletin provides Warranty Administration - New Labor Codes information.
This informational bulletin provides a single point reference and strategy document to aid in reducing customer...
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comebacks, and the possibility of buyback situations by outlining specific guidelines, strategy and forms that will assist with this goal, by identifying, clarifying and documenting customer concerns accurately at each service visit.
This informational bulletin provides a list of newly released PI and Bulletins in regards to recent released vehicles so...
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that vehicles can be fixed right the first time in for service.
This informational bulletin provides information regarding the aftermarket device interference with onstar diagnostic...
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service.
This Warranty Admin bulletin provides retail and wholesale service personnel with the policies/procedures and the...
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warranty transaction submission procedures that support the Personal Property Damage process.
This warranty administrational bulletin provides information on Clarification of Use - Dealer Empowerment Labor...
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Operations and Customer Enthusiasm
This warranty bulletin clarifies the use of dealer empowerment to satisfy the customer.
This warranty administration bulletin provides information on the Clarification of Use for Dealer Empowerment Labor...
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Operations and Customer Enthusiasm
This warranty administration bulletin provides information to clarify proper transaction administration of GM Dealer...
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Empowerment Program and Goodwill Cases.
This warranty administration bulletin provide policy information for GM dealer empowerment program and goodwill...
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procedures.
GM SERVICE TECHNICAL COLLEGE WITH A MESSAGE REGARDING GM SERVICE KNOW-HOW SEMINARS.
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GM VOICEMAIL LOG. *TT
Transmission
25 bulletinsDIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE.
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*TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities.
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The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when...
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the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic...
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transmissions and 4 wheel drive may exhibit a condition of grinding/ratcheting type noise when shifting the automatic transmission into park while the transfer case is in 4 wheel drive low (4LO) range. Dealers technician's are advised this condition should be deemed a normal characteristic of 4WD low operation.
This informational bulletin provides information for Automatic Transmission Oil Cooler Flow Test Essential Tool J-45096...
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TransFlow.
This Preliminary Information communication provides information to the technician about vehicles that have an inaccurate fuel gauge.
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Technician should drive the vehicle to duplicate the concern. The fuel gauge will have a tendency to falsely indicate a lower fuel level than what is actually present. The fuel gauge will take a few minutes to show the correct fuel level. On vehicles equipped with an automatic transmission no buffering takes place when the transmission is in park or neutral. This is a normal characteristic and no repairs are necessary. On vehicles equipped with a manual transmission the fuel gauge is buffered in all gears and neutral. There is a timer which starts to count up when the clutch is depressed. When this timer reaches its calibrated value the buffering stops. This is a normal characteristic and no repairs are necessary.
This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test...
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essential tool J-45096 TransFlow.
This Preliminary Information communication provides information to the technician with the axel setup information from American Axle Manufacturing.
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Technician should be advised that the maximum pinion shim to be used or stacked behind the pinion is 0.050?, and the minimum pinion shim is 0.020? for an 8.6 axle. The range for available pinion depth shims for the 10.5? axle is 0.006? to 0.024?. When setting the backlash it should be set between 0.003? to 0.005? on a new ring and pinion for any American Axle Manufacturing application. The ring and pinion can be reused or adjusted if the mileage is less than 500 miles, if not used for towing. Technician should be advised that a ?roller coaster? or ?hourglass? pattern on the bearings may be normal up to 10,000 miles and possibly longer. With a mis-machined housing you may get a heel pattern on both sides of the gear teeth at build up can generally be corrected with backlash adjustments. When setting up an 8.6? axle with a 5 cut gear set is to use a 0.035? pinion shim and set backlash to 0.004?. When using the newer 2 cut gear set also use a 0.035? pinion shim and still set backlash to 0.004?. To set the gear pattern use backlash to adjust the pattern heel to toe. Use the pinion shim to adjust the height of the pattern. The proper drive pinion bearing pre-load is from 15 - 30 inch pounds with new bearings. The total torque to turn after the differential case is installed should increase 5 - 10 inch pounds at the pinion. A new pinion nut must be used whenever the old one is removed. The axle shaft end play specification is 0.012? per side and the radial specification is 0.002? - 0.003?. Technician should be advised that synthetic lube can be used in all new American Axle Manufacturing axle assemblies. The new pinion seal for the 8.6? axle assembly is a two piece design.
CADILLAC/CHEVROLET/GMC/HUMMER: SOME SUVS AND TRUCKS ARE EXHIBITING A CONDITION WHERE BY GRINDING/RATCHETING TYPE NOISE...
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COMING FROM AUTOMATIC TRANSMISSION WHEN SHIFTING INTO PARK WHILE IN 4WD LOW (4LO) RANGE. *PE
SLIP CONDITION IN 2ND, 3RD, OR 4TH.
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DAMAGED 2-4 OR 3-4 CLUTCH. *KB UPDATED 10/31/07. *NJ
ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT.
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*TT
POSSIBLE NO 4WD SHIFT CONCERN DIAGNOSTIC TROUBLE CODE C0327.
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*TT
GM POWERTRAIN WOULD LIKE TO RECEIVE PRODUCT FEEDBACK ON VEHICLES WITH THE MA5 5-SPEED MANUAL TRANSMISSION, FOR ANY LEAK...
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OR NOISE CONDITION, PRIOR TO ANY REPAIR ATTEMPTS. *TT
MANUAL TRANSMISSION SHIFTING-SOME OWNERS MAY COMMENT ON DIFFICULTY SHIFTING INTO REVERSE.
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*SC
NOISE AND BUMP CLUNK FELT WHEN TRANSFER CASE SHIFTED INTO FOUR LOW.
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*EH
VIBRATION AT ALL SPEEDS DAMAGED TRANSMISSION TAILSHAFT BUSHING CRACKED EXHAUST AT CATALYTIC CONVERTER.
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*EH
3-2 AND 4-2 WOT DOWN SHIFT INORMATION.
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*EH
HARSH 1-2 SHIFT. *EH
THE 4L60E/4L65E AUTOMATIC TRANSMISSION SLIP CONDITION IN 2ND, 3RD, OR 4TH GEAR.
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ALSO TO INCLUDE THE PONTIAC GTO 2005. *TC
MA5 5 SPEED NORMAL REVERSE GEAR OPERATION.
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*TC UPDATE. *TT
FLUID LEAK BETWEEN TRANSFER CASE AND TRANSMISSION ADAPTER.
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*TT
4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE.
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*TT
MANUAL TRANSMISSION STUCK IN 3RD GEAR.
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*MR
4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION.
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*TT
SLIP CONDITION IN 2ND, 3RD OR 4TH DAMAGED 2-4 BAND 3-4 CLUTCH ON THE 4L60E/4L65E AUTOMATIC TRANSMISSION.
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*TT *MJ
Fuel System
21 bulletinsThis Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a...
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customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
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additive.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a...
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customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a...
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customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
This Preliminary information communicates theuse of Winter grade fuel during the warm months of 2020 and the potential...
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rivabilityissues that it can cause. The ongoing Coronavirus (COVID-19) pandemic has caused significant reductions in driving and fuel use. Due to the surplus of winter grade fuel sitting in storage (pipelines/stations) the EPA is waiving the fuel vapor requirement. This will extend the use of winter fuel into the summer months. The drivability concernsshould not be single events but should be multiple occurrences associated with hot days.
This Preliminary information communicates theuse of Winter grade fuel during the warm months of 2020 and the potential...
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rivabilityissues that it can cause. The ongoing Coronavirus (COVID-19) pandemic has caused significant reductions in driving and fuel use. Due to the surplus of winter grade fuel sitting in storage (pipelines/stations) the EPA is waiving the fuel vapor requirement. This will extend the use of winter fuel into the summer months. The drivability concernsshould not be single events but should be multiple occurrences associated with hot days.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks...
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using the evaporative emission cart smoke machine and ultrasonic leak detectortools.
This informational bulletin explains how the catalytic converters may need an inspection, cleaning or replacement if...
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debris have entered the exhaust system.
This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.
This informational bulletin provides information on how to save fuel and proper maintenance without using fuel or oil...
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additives.
This informational bulletin provides dealership personnel with information on flexible fuel vehicles (FFVs) and the...
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usage of E85 fuel in GM vehicles.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
GMC: FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL, CAUSING THE LOW FUEL LIGHT TO ILLUMINATE.
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*PE
SPECIAL COVERAGE ADJUSTMENT - FUEL TANK CAPS MAY EXPERIENCE A CONDITION WHERE THE FUEL TANK CAP WON'T TIGHTEN PROPERLY,...
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OR THE FUEL TANK CAP WON'T COME OFF, OR IS BROKEN. *NJ
EXHAUST MOAN AT 1,500 TO 1,800 RPM.
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*TT
EXHAUST BUZZ NOISE. *TT
FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL.
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*TT
Tires & Wheels
21 bulletinsThis service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all...
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repairs requiring balance and Road Force measurement.
This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all...
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repairs requiring balance and Road Force measurement.
This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate...
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ride characteristics of GM cars and trucks.
This informational bulletin explains the wheel Road Force balancers and what they can do for customer concerns.
This informational bulletin provides a description of the proper wheel installation and proper wheel torque techniques...
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used to install wheels onto vehicles
This informational bulletin provides a description of the proper wheel installation and proper wheel torque techniques...
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used to install wheels onto vehicles
This warranty administration bulletin provide policy information new tire warranty program and global warranty...
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management submission information.
GM: WHEN VEHICLE IS IN 4-WHEEL DRIVE THERE MAY BE A NOISE OR THERE MAY BE U-JOINT FAILURE.
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*RM UPDATED ON 06/24/2011. *KB
GMC: TEMPORARY COMPACT SPARE TIRE SIDEWALL CRACKING.
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THE AFFECTED, SUPPLIED BY BRIDGESTONE/FIRESTONE, IS BRANDED TEMPA. *PE
GMC: TEMPORARY COMPACT SPARE TIRE SIDEWALL CRACKING (US ONLY).
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2003-04 CHEVROLET VENTURE, 2004-08 COLORADO, 2004-08 GMC CANYON, 2003-04 OLDSMOBILE SILHOUETTE, 2003-04 PONTIAC MONTANA *PE
RIGHT REAR WHEEL APPEARS TO EXTEND OUT FURTHER THAN THE LEFT SIDE.
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*SC
REVISED WHEEL ALIGNMENT SPECIFICATIONS.
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*TT
PREMATURE FRONT TIRE WEAR.
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*TT
AXLE GRINDING OR SIMILAR CONCERN AFTER USING SPARE TIRE.
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*EH
FOUR WHEEL DRIVE SYSTEM OPERATION.
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*EH
FRONT AXLE GROWL NOISE IN 2 WHEEL DRIVE MAY NOT OCCUR IN 4 WHEEL DRIVE.
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*EH
EXCESSIVE INSIDE TIRE WEAR.
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*EH
THE SPARE TIRE IS A DIFFERENT SIZE COMPARED TO THE REST OF THE TIRES.
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THE Z71 OPTION COMES WITH P265/75R15 TIRES, AND THE SPARE TIRE IS A P235/75R15. *TT
P265/75R15 TIRE VIBRATION AT HIGHWAY SPEED.
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*TT
CHANGING TIRE SIZE.*MR
DRIVELINE CHARACTERISTICS FOR FOUR-WHEEL DRIVE (4WD) SYSTEM.
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*TT
Infotainment
20 bulletinsXM Audio Traffic And Travel Link Availability And Operation.
Information On Requests To Add OnStar Bluetooth Option.
This Preliminary Information communication provides information to the technicianthat when the radio is replaced the...
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manufactures "enable counter" will need to be cleared for the LED lamp to come on.
This informational bulletin provides information regarding the inappropriate warranty claims submitted for damaged...
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radios and instrument panel clusters, provides exampls on whats an acceptable for warranty and whats not
This informational bulletin provides information regarding the inappropriate warranty claims submitted for damaged...
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radios and instrument panel clusters, provides exampls on whats an acceptable for warranty and whats not
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States.
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While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The customer has 3 options while traveling through the United Sates. First if the vehicle is equipped with a navigation radio they can request a "Destination Download" to the vehicle. Second if the customer uses the OnStar RemoteLink app they can send the directions to the vehicle. The third option would be to have the vehicle loaded with a ?500 phone number? The customer will no longer be able to use their Hands Free Calling minutes when the new 500 phone number is loaded. If a customer chooses to restore Hands Free Calling in the future a new phone number will be assigned to the vehicle; previous phone numbers are not available.
This preliminary bulletin provides procedures on how to reset or refresh the XM radio receiver is the customers states...
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that they only get a few channels.
This Preliminary Information communication provides information to the technician about vehicles that may not receiving all channels on the XM band.
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Technician will need to use a scan tool and verify current Digital Radio Receiver Status under Data Display. Technician will need to look at the second line labeled Digital Radio Receiver Status will display a number of 00 - 04. Technician will repair per the status code.
This Preliminary Information communication provides information to the technician about vehicles that may have an issue...
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when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States.
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While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The customer has 3 options while traveling through the United Sates. First if the vehicle is equipped with a navigation radio they can request a "Destination Download" to the vehicle. Second if the customer uses the OnStar RemoteLink app they can send the directions to the vehicle. The third option would be to have the vehicle loaded with a ?500 phone number? The customer will no longer be able to use their Hands Free Calling minutes when the new 500 phone number is loaded. If a customer chooses to restore Hands Free Calling in the future a new phone number will be assigned to the vehicle; previous phone numbers are not available.
This Preliminary Information communication provides information to the technician about vehicles that may have an issue...
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when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States.
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While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The customer has 3 options while traveling through the United Sates. First if the vehicle is equipped with a navigation radio they can request a "Destination Download" to the vehicle. Second if the customer uses the OnStar RemoteLink app they can send the directions to the vehicle. The third option would be to have the vehicle loaded with a "500 phone number" The customer will no longer be able to use their Hands Free Calling minutes when the new 500 phone number is loaded. If a customer chooses to restore Hands Free Calling in the future a new phone number will be assigned to the vehicle; previous phone numbers are not available.
This Preliminary Information communication provides information to the technician about vehicles that may have an issue...
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when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
This Preliminary Information communication provides information to the technician about a customer?s request to install OnStar Bluetooth.
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Dealer should be advised at this time, there are no provisions to add this option to vehicles that were not built with it.
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN.
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THE VEHICLE'S XM RADIO ONLY HAS XM PREVEIW CHANNELS.
BUZZ OR CRACKLE NOISE FROM THE AUDIO SPEAKERS.
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*SC
NO AUDIO AND RADIO DISPLAY INOPERATIVE OR CLOCK RESETS.
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*TT
XM ERROR ON A RADIO DISPLAY.
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*TT
PRODUCT INFORMATION REGARDING RADIO PERSONALIZATION.
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*MR
THE OWNERS MANUAL AND SI ARE INCORRECT IN DESCRIPTION OF OPERATION FOR THE AUTOMATIC DIMMING MIRROR WITH COMPASS, TEMPERATURE DISPLAY AND MAP LIGHTS.
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SIT BULLETIN 1414380. *TT
Lighting
19 bulletinsThis informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or...
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Fog/Driving Lamp Damage.
This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed...
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Accessories.
This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement...
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Guidelines.
This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement...
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Guidelines.
This Preliminary Information communication provides information to the technician about vehicles that show an error...
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message when a media disc is installed. Technician will need to check the Regular Production Option Code list to verify if the disc is compatible.
This informational bulletin explains condensation in exterior lights and replacment guidelines for warranty replacement.
This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system.
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For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System. For the 2010 and UP model year vehicles, the OnStar set-up procedure and OnStar Activation request have been combined into a single programming event called OnStar Set-up and Activation in Service Programming System.
This Preliminary Information communication provides information to the technician about vehicle's odometer appears...
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to be inaccurate relative to a known distance traveled. Technician should obtain a hand-held GPS unit to test the odometer. If a hand held GPS unit is not available, the only other option is to verify the miles traveled using a surveyor's wheel or a dynamometer.
This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system.
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For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System. For the 2010 and UP model year vehicles, the OnStar set-up procedure and OnStar Activation request have been combined into a single programming event called OnStar Set-up and Activation in Service Programming System.
This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and...
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what should be considered warranty replacement and not
This informational bulletin provides information on exterior lamp condinsation and replacement guidelines
This Preliminary Information communication provides information to the technician about vehicle's odometer appears to be...
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inaccurate relative to a known distance traveled. Technician should obtain a hand-held GPS unit to test the odometer. If a hand held GPS unit is not available, the only other option is to verify the miles traveled using a surveyor's wheel or a dynamometer.
This informational bulletin provides information to assist dealership personnel with the identification of vehicle...
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headlamp, tail lamp, license lamp or fog/driving lamp damage that are not considered warrantable.
This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system.
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For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System. For the 2010 and UP model year vehicles, the OnStar set-up procedure and OnStar Activation request have been combined into a single programming event called OnStar Set-up and Activation in Service Programming System.
This informational bulletin provides information on vehicles may rock or move slightly forward or rearward while in Park...
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at start up after cold soak and that this is considered a normal conditon and no repairs are necessary
BUICK\CADILLAC\CHEVROLET\GMC\HUMMER\OLDSMOBILE\PONTIAC\SAAB\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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SPECIAL COVERAGE ADJUSTMENT-ANALOG ONSTAR DEACTIVATION. FCC RULED IN 2002 WIRELESS CARRIERS WOULD NO LONGER RE REQUIRED TO SUPPORT ANALOG WIRELESS NETWORK STARTING IN 2008. *PE CSC LETTER WAS RECEIVED. UPDATED 12/1/08. *PE
BUTTONS ARE NOT LABELED.
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*EH
SES LIGHT. *EH
LIGHTING APPLICATIONS FOR VEHICLES WHERE SNOWPLOW DAYTIME RUNNING LIGHTS (DRL'S) ARE/ ARE NOT REQUIRED.
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FISHER. *TT
Brakes
14 bulletinsThis informational bulletin provide information for the technicians to repair the rear window defroster contact or tabs.
This Preliminary Information communication provides information to the technician the steps needed to diagnose and...
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repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This scenario also includes incoming Bluetooth calls. One type of unwanted call can be made if the key pad is faulty the OnStar system will try to make a blue button call for shorted voltage in the circuits. The OnStar module could have an internal fault and produce a "Phone Unavailable" audio message also it may have a Diagnostic Trouble Code U1500 or B1000. Refer to diagnostics for the Diagnostic Trouble Code making sure to follow any applicable Bulletins or Preliminary Information sheets. A "Ready" or "OnStar ready" audio message heard while driving. In some cases it has been found that the customer is inadvertently pressing the ?push to talk? button on the steering wheel controls. On rare occasions, other issues in the steering column or Steering Wheel Control system may induce this concern.
This Preliminary Information communication provides information to the technician the steps needed to diagnose and...
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repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This scenario also includes incoming Bluetooth calls. One type of unwanted call can be made if the key pad is faulty the OnStar system will try to make a blue button call for shorted voltage in the circuits. The OnStar module could have an internal fault and produce a ″Phone Unavailable″ audio message also it may have a Diagnostic Trouble Code U1500 or B1000. Refer to diagnostics for the Diagnostic Trouble Code making sure to follow any applicable Bulletins or Preliminary Information sheets. A “Ready” or “OnStar ready” audio message heard while driving. In some cases it has been found that the customer is inadvertently pressing the ″push to talk″ button on the steering wheel controls. On rare occasions, other issues in the steering column or Steering Wheel Control system may induce this concern.
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND...
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REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. TECHNICIAN WILL NEED TO DETERMINE WHAT TYPE OF CALL THE CUSTOMER IS HAVING THAT IS UNWANTED. THE VEHICLE MAY RECEIVE AN INCOMING CALL JUST LIKE ANY OTHER PHONE. TYPICALLY THE CUSTOMER WILL HEAR THE PHONE RINGING IN THE VEHICLE. THIS SCENARIO ALSO INCLUDES INCOMING BLUETOOTH CALLS. ONE TYPE OF UNWANTED CALL CAN BE MADE IF THE KEY PAD IS FAULTY THE ONSTAR SYSTEM WILL TRY TO MAKE A BLUE BUTTON CALL FOR SHORTED VOLTAGE IN THE CIRCUITS. THE ONSTAR MODULE COULD HAVE AN INTERNAL FAULT AND PRODUCE A PHONE UNAVAILABLE AUDIO MESSAGE ALSO IT MAY HAVE A DIAGNOSTIC TROUBLE CODE U1500 OR B1000. REFER TO DIAGNOSTICS FOR THE DIAGNOSTIC TROUBLE CODE MAKING SURE TO FOLLOW ANY APPLICABLE BULLETINS OR PRELIMINARY INFORMATION SHEETS. A GREADYH OR GONSTAR READYH AUDIO MESSAGE HEARD WHILE DRIVING. IN SOME CASES IT HAS BEEN FOUND THAT THE CUSTOMER IS INADVERTENTLY PRESSING THE PUSH TO TALK BUTTON ON THE STEERING WHEEL CONTROLS. ON RARE OCCASIONS, OTHER ISSUES IN THE STEERING COLUMN OR STEERING WHEEL CONTROL SYSTEM MAY INDUCE THIS CONCERN.
CHEVROLET\GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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SPECIAL COVERAGE ADJUSTMENT-BRAKE LAMPS INOPERATIVE OR CONTINUOUS ILLUMINATION. THIS MAY BE CAUSED BY CONTAMINATION IN THE BRAKE LAMP SWITCH. THE PERFORMANCE OF THE BRAKES IS NOT AFFECTED. *PE UPDATED 5/11/11. *PE UPDATED 6/22/11. *PE
ABS LIGHT ON WITH EBCM DTC'S C0035, C0040, C0220 AND/OR C0221.
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*KB UPDATED 1/30/08. *NJ UPDATED 8/18/09. *PE UPDATED 3/15/10. *PE UPDATED 3/29. *PE
BRAKES SEEM TO GRAB ON FIRST FEW BRAKE APPLICATIONS.
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*KB
ANTI-LOCK BRAKING SYSTEM (ABS) LIGHT ON WITH EBCM DIAGNOSTIC TROUBLE CODES (DTCS) C0040, C0035, C0221 AND/OR C0220.
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*TT
LACK OF SEAM SEALER AT THE HEADBOARD OF THE PICK-UP BOX ON REGULAR AND EXTENDED CABS.
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*TT
ADDITIONAL DIAGNOSTICS FOR ABS DTC'S.
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*TC
BRAKE PEDAL ARM MAY NOT STAY ENGAGED.
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*TT
DIAGNOSING ABS C0035 C0040 C0221 C0220.
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*MR
FRONT BRAKES SEEM APPLIED.
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*MR
NEW ESSENTIAL TOOL CH-47661 - ON-CAR BRAKE LATHE.
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*TT
Software & Calibration
13 bulletinsOnStar Voice Fallback Number Update
This informational bulletin provides a revision for 09-00-89-008 to add model years, update the Labor Operation...
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Information and Transaction Submissions Procedure and general content updates.
This informational bulletin provides a revision for 05-08-48-001B to add 2010-2014 model years and update Labor...
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Operation.
This informational bulletin provides a revision for 13-00-89-004A to include updated information.
This informational bulletin advises the technician to update the Onstar from an analog system to a digital system if the...
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customer wishes.
This technical service bulletin provides a revision for 07-08-49-020G to add the 2014 model year and update model list.
This preliminary information bulletin provides a revision of 13-00-89-004D to include updated information.
This technical bulletin provides a revision of 10-00-89-017Z to include updated information.
This informational bulletin provides an update for 13-00-89-004C to include updated information.
This Preliminary Information communication provides information to the technician about being unable to receive OnStar ?Over The Air? updates.
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Technician will need to press the OnStar button and verify they have an active account and that the call connects with data and location.
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE MEDIA DISC PLAYER WITH THE LATEST CALIBRATIONS TO CORRECT...
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A CONDITION OF THE REAR ENTERTAINMENT SYSTEM NOT OPERATING AS INTENDED IN COLDER AMBIENT TEMPERATURE AREAS DUE TO CALIBRATION CONCERNS.
EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80.
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*NJ UPDATED 7/17/2008. *PE
WHISTLE HISS HUM NOISE HEARD WHEN AC IS ON.
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*EH UPDATED *EH
Suspension
4 bulletinsVIBRATION HIGHWAY SPEED Z71 AND Z85 SUSPENSION.
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*SC
VIBRATION HIGHWAY SPEED.
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SUSPENSION PACKAGE MAY EXPERIENCE A VIBRATION AT HIGHWAY SPEEDS. *EH
SQUEAK OR CRUNCH NOISE FROM FRONT SUSPENSION OVER BUMPS.
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*TT
CORRECTION TO A DEALER VME SENT OUT ON MARCH 23, 2004 WITH REGARD TO CUSTOMERS COMMENTS THAT THEY FEEL THEIR SUSPENSION...
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RIDE IS TOO STIFF, TOO SOFT, TOO SHAKY OR INCONSISTENT. *TT
Air Bags & Safety
3 bulletinsThis informational bulletin provides information to advise dealers about seat belt buckles not operating and/or seat...
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belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button sticking.
GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE.
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BUCKLE RELEASE BUTTON IS STICKING. SEAT BELT WARNING LIGHT ILLUMINATED. LIKELY CAUSED BY STICKY BEVERAGES THAT ARE SPILLED INTO THE BUCKLE ASSEMBLY. *RM UPDATED 4/3/12. *PE
AIR BAG READINESS LIGHT/SUPPLEMENTAL INFLATABLE RESTRAINT (SIR) LIGHT ON, DIAGNOSTIC TROUBLE CODE(S) (DTC) B0057, B0058, B0059, B0064, B0065, B0066.
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*TT
Steering
3 bulletinsSAAB/HUMMER/GM: DIAGNOSTIC TIPS/RECOMMENDATIONS WHEN POWER STEERING PUMP REPLACEMENT IS NECESSARY.
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ANALYSIS OF RETURNED POWER STEERING (PS) PUMPS THAT HAD BEEN REPLACED FOR NOISE, NO POWER ASSIST, NO OR LOW PRESSURE AND LEAKING CONDITIONS HAS INDICATED A HIGH NUMBER OF NO TROUBLE FOUND RESULTS. ALL 1997-2010 VEHICLES AND LIGHT TRUCKS; 2010 AND PRIOR HUMMERS H2/H3 AND SAAB 9-7X VEHICLES. *PE
SQUEAK NOISE FROM LOWER STEERING COLUMN WHEN TURNING.
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*NM
SQUEAK FROM LOWER STEERING COLUMN WHEN TURNING STEERING WHEEL.
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*MR
HVAC & Climate
3 bulletinsHVAC, PASSENGER LUMBAR AND/OR PASSENGER HEATED SEAT INOPERATIVE.
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*TT
DTC P0128 AND/OR NO HEAT FROM HEATER.
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*SC
AIRFLOW FROM LEFT SIDE DEFROST VENT LESS THAN RIGHT SIDE.
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SIT BULLETIN 1414379. *TT