2004 Cadillac Escalade TSBs

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.

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

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.

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.

conductive finish.

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.

location.

and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

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.

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

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.

vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

issue.

issue.

vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

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.

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.

and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

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.

bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.

Identification.

engine is started while diagnosing for noise from the engine or transmission.

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

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.

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.

and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

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.

vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.

Certain vehicles may have a condition where the engine control module (ECM) software allows the Auto Stop to occur at a state of charge below 65%. Auto Stop is supposed to be inhibited at 65% to protect against excessive battery wear and discharge. Dealers are to reprogram the ECM.

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.

bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.

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.

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.

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.

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.

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.

vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

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.

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.

vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.

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.

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.

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.

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.

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.

Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.

Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact Partechand/orthe Techline Customer Support Center for additional support.

conductive finish.

how toptier fuels should be used to reduce carbon build up.

bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.

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.

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.

vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.

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.

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.

vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

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.

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

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.

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

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.

how toptier fuels should be used to reduce carbon build up.

Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

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.

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.

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.

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.

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.

shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Technician should compare the concern with a like vehicle. If the concern is worse than a like vehicle, technician should follow published Service Information diagnosis and repair as necessary.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.

Technician should record module info per the latest version of PIC4310 and contact General Motors Technical Assistance Center.

Technician should compare the concern with a like vehicle. If the concern is worse than a like vehicle, technician should follow published Service Information diagnosis and repair as necessary.

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.

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.

vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.

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.

vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.

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.

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.

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.

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.

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.

Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.

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.

or engines during there break in period.

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.

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.

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.

vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.

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.

Diagnostic Trouble Code P0300 after engine repairs. Technician will need to ensure that injector connectors for cylinder 5-7 and 6-8 are not crossed.

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.

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.

shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.

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.

shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.

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.

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.

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.

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 5.2.4 ODOMETER SERVICING.

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.

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.

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.

DESIRES ADDITIVES TO PREVENT FUEL CONCERNS DEPENDING ON FUEL OR TEMPERATURE RELATED CONDITIONS.

GASKET SEALING SURFACES.

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.

IN RARE CASES, CUSTOMERS MAY COMMENT ON A LACK OF STEERING ASSIST WHEN STOPPED OR DURING PARKING LOT TYPE OF MANEUVERS. *JS UPDATED 09/02/14*LJ

INOPERATIVE AND MAY STILL BE INOPERATIVE AFTER KEY IS TURNED ON. *PE UPDATED ON 5/1/12. *JS

THERE ARE MULTIPLE POSSIBLE CAUSES. *RM

THERE MAY ALSO BE AN EXTENDED CRANK AFTER FILLING THE FUEL TANK. *RM UPDATED 5/31/11. *PE UPDATED ON 06/16/2011. *KB UPDATED A SECOND TIME ON 06/16/2011. *KB

UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. *PE UPDATED 3/21/11. *PE UPDATED 5/9/11. *PE UPDATED 5/25/11. *PE UPDATED 06/16/2011. *KB UPDATED A SECOND TIME ON 06/16/2011. *KB UPDATED 6/27/11. *PE

*PE UPDATED 2/17/09. *PE

*KB

*TT

*TT

*TT

*TT

*TT

*TT

*TT

*EH

*TT

*TT UPDATED *EH

*TT

*TC

*SC

*SC

*TC

*TC

*TT

*TT

*TT

*TT

DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT

*TT

REAR AXLES WITH OR WITHOUT G80 (LOCKING DIFFERENTIAL). *TT 2006 ALL GENERAL MOTORS LIGHT DUTY TRUCKS, VANS AND UTILITIES. *TT

*MJ

*MJ

*TT

*TT

*TT

*TT

*MR

*TT BULLETIN 03-06-05-008, DATED 11/01/2003 REPLACED. *TT

TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT

*TT

SERVICE VME. SIT BULLETIN 1455584. *TT (THIS BULLETIN REPLACES PI01428A DATED 11-18-03). *TT

*TT

*TT

Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.

Allegation Resolution (PAR) claim.

Allegation Resolution (PAR) claim.

Allegation Resolution (PAR) claim.

Allegation Resolution (PAR) claim.

Only)

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

Allegation Resolution (PAR) claim.

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.

Only).

for vehicles that may need an upgrade.

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.

A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.

Hardman Double Bubble Epoxy part number 04001.

connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.

correct tool.

vehicle.

appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.

additional information concerning Policy decision making.

Approved Refinish Materials booklet information.

may be un necessary.

correct tool.

vehicle.

find growing concerns around them.

unwanted odors in vehicles and which products to use for each application.

for vehicles that may need an upgrade.

may be un necessary.

may be un necessary.

correct tool.

vehicle.

unwanted odors in vehicles and which products to use for each application.

Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.

Analog/Digital-Ready Systems to OnStar Generation 6 Digital-Capable System.

by listing possible concerns to specific vehicles.

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.

issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components.

unwanted odors in vehicles and which products to use for each application.

Hardman Double Bubble Epoxy part number 04001.

A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.

first time.

Only)

Canada after Decommissioning of 2G CDMA Cellular Networks

and where to email the info to.

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.

A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.

A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.

availability of the passenger compartment air filter. Dealer should advise the customer starting in 2003 the passenger compartment air filter is no longer available as a factory option. For vehicles that are 2007 and later a cabin air filter may be able to be added. Refer to the latest version of PI1216.

Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.

connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.

may be un necessary.

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.

find growing concerns around them.

Analog/Digital-Ready Systems to OnStar Generation 6 Digital-Capable System.

Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 miles per hour at any given speed when looking straight at the needle.

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.

availability of the passenger compartment air filter. Dealer should advise the customer starting in 2003 the passenger compartment air filter is no longer available as a factory option.

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.

Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.

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.

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.

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.

THE VEHICLE MAY BE UNABLE TO CONNECT TO ONSTAR USING THE WHITE, BLUE OR RED ONSTAR BUTTONS.

WHEN HAVE A DATA CONNECTION. *RM

*RM

*KB

*TT

*TT

*TT

*TT

*SC

*TT

*TT

ORIGINAL NOT YET RECEIVED. *TT

BUICK TERAZZA 2005, GMC SIERRA DENALI 2002-2003, GMC B7 CHASSIS MEDIUM DUTY 2003-2005 AND GMC 560 C-SERIES 2003-2005 *SC

*EH

*EH

*EH

*TT

*TT

*TT

*EH

*EH

*EH

*TT

*EH

*EH

*TT

*TT

*SC

*SC

*SC

*SC

*TC

*TT

*TT

*TT

*MJ

*TT

*TT

*MJ

10 MPH ON START UP. *MJ

*TT

*TT

*TT

*TT

*MR

*MR

*MR

*MR

*MR

*MR

SIT BULLETIN 1460572. *TT

*TT

*TT

SIT BULLETIN 1410632. *TT

*TT

*TT 03-08-61-002B, DATED 05/01/2004 REPLACED. *TT

*TT 2003-2005 GMC DENALI ADDED. *TT

*TT *EH

*TT

*TT

STALL AND OR LACK OF POWER OR RUNNING ROUGH CONDITION UNTIL THE VEHICLE COOLS DOWN. *TT

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.

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 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.

The customer communication requested return of unsold inventory to inspect for a software issue. If the software issue exists it can cause a fan in the climate control system to stay on even when the ignition is turned off. The fan staying on even though the ignition is off can drain the battery, making the vehicle unable to start.

applications.

applications.

when replacing a module.

finish".

when replacing a module.

conductive finish.

the TIS Service Programming System (SPS), set-up and warranty.

rules and regulations for Canada only.

reprogram modules.

rules and regulations for Canada only.

application.

applications.

rules and regulations for Canada only.

This communication is to return unsold inventory because some product sold in 2016 may not have coil harness wound in a centered condition as an assembly aid. If installer does not center the rotations of the assembly during replacement process in accordance with applicable AllData service and repair procedure, post-install turning of the steering wheel will trigger the air bag warning light of the vehicle.

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.

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.

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.

Suspension System message on the Driver Information Center and the rear suspension ride height is incorrect. Technician will find Diagnostic Trouble Code C0696 or C0711 set in Electronic Suspension Control. Technician will need to inspect air compressor assembly for wire damage and repair any damage do not replace the complete air compressor assembly. Some vehicles may have a Service Suspension System message on the Driver Information Center and may also comment that the rear suspension ride height may be low under a heavy payload. Technician will follow published Service Information diagnostics and if determine if the sensor needs to be replaced technician will need to replace a complete air filter, dryer, and sensor assembly. Some vehicles may have a loose hose hanging down in the left rear of the vehicle. Technician will replace the auto leveling compressor air inlet filter and hose assembly. Also some vehicles may have automatic level control compressor is no longer performing a self-test at start up. Be advised the automatic level system normally will not or very infrequently cycle the compressor at key up.

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.

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.

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.

Communication Interface Modules (VCIM) (GMNA Only)

Suspension System message on the Driver Information Center and the rear suspension ride height is incorrect. Technician will find Diagnostic Trouble Code C0696 or C0711 set in Electronic Suspension Control. Technician will need to inspect air compressor assembly for wire damage and repair any damage do not replace the complete air compressor assembly. Some vehicles may have a Service Suspension System message on the Driver Information Center and may also comment that the rear suspension ride height may be low under a heavy payload. Technician will follow published Service Information diagnostics and if determine if the sensor needs to be replaced technician will need to replace a complete air filter, dryer, and sensor assembly. Some vehicles may have a loose hose hanging down in the left rear of the vehicle. Technician will replace the auto leveling compressor air inlet filter and hose assembly. Also some vehicles may have automatic level control compressor is no longer performing a self-test at start up. Be advised the automatic level system normally will not or very infrequently cycle the compressor at key up.

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.

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 COMMUNICATION IS TO RETURN UNSOLD INVENTORY BECAUSE SOME PRODUCT SOLD IN 2016 MAY NOT HAVE COIL HARNESS WOUND IN A CENTERED CONDITION AS AN ASSEMBLY AID. IF INSTALLER DOES NOT CENTER THE ROTATIONS OF THE ASSEMBLY DURING REPLACEMENT PROCESS IN ACCORDANCE WITH APPLICABLE ALLDATA SERVICE AND REPAIR PROCEDURE, POST-INSTALL TURNING OF THE STEERING WHEEL WILL TRIGGER THE AIR BAG WARNING LIGHT OF THE VEHICLE.

THIS COMMUNICATION IS TO RETURN UNSOLD INVENTORY BECAUSE SOME PRODUCT SOLD IN 2016 MAY NOT HAVE COIL HARNESS WOUND IN A CENTERED CONDITION AS AN ASSEMBLY AID. IF INSTALLER DOES NOT CENTER THE ROTATIONS OF THE ASSEMBLY DURING REPLACEMENT PROCESS IN ACCORDANCE WITH APPLICABLE ALLDATA SERVICE AND REPAIR PROCEDURE, POST-INSTALL TURNING OF THE STEERING WHEEL WILL TRIGGER THE AIR BAG WARNING LIGHT OF THE VEHICLE.

MODE AFTER THE ONSTAR CANADA UPGRADE TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE.

MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE.

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.

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.

MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE.

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 CONCERN COULD BE CAUSED BY BROKEN SEAT POSITION SENSOR CIRCUITS UNDER THE DRIVER OR PASSENGER FRONT SEATS. OVER TIME, FROM REPEATED SEAT MOVEMENT, THE WIRING COULD BREAK. *PE

*KB

*KB

*KB

*KB

DIAGNOSTIC TROUBLE CODES B2435, B2440, B3606 AND/OR B1825 SET IN THE DRIVERS SEAT MODULE. *TT

*TT UPDATED 10/05/07. *NJ INSPECT WIRING HARNESS TO TRANSFER CASE SPEED SENSORS, REPLACE WIRING HARNESS. UPDATED 7/18/08 *PE

DIAGNOSTIC TROUBLE CODES C0290, C0292, C0131, OR C0196 SET IN THE EBCM. *TT

*EH

*EH

*TT

*TC

*TT

03-04 CHEVROLET ALL FULL SIZE TRUCKS AND UTILITIES AND 03-04 GMC ALL FULL SIZE TRUCKS AND UTILITIES AND 03-04 CADILLAC ALL FULL SIZE UTILITIES. *MJ

*TT

*MR

SIT BULLETIN 1400427. *TT

VARIOUS MODELS INCLUDING PONTIAC GTO 2004. *TT

*TT

*TT UPDATE. *TT UPDATED *EH

after curbview assist is used.

Replacement Guidelines.

Replacement Guidelines.

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.

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.

Technician will need to measure fender wheel-opening heights, front and rear, to quantify vehicle lean. Fender wheel-opening heights are related to, but distinct from, trim height. The front wheel-opening height is known as P height, and the rear wheel-opening height is known as R height. Adjust and heights that are out of specification. After all adjustments are done, perform a front-end alignment and check headlight aim.

pitting corrosion and/or spotted.

Technician will need to measure fender wheel-opening heights, front and rear, to quantify vehicle lean. Fender wheel-opening heights are related to, but distinct from, trim height. The front wheel-opening height is known as P height, and the rear wheel-opening height is known as R height. Adjust and heights that are out of specification. After all adjustments are done, perform a front-end alignment and check headlight aim.

Technician will need to measure fender wheel-opening heights, front and rear, to quantify vehicle lean. Fender wheel-opening heights are related to, but distinct from, trim height. The front wheel-opening height is known as P height, and the rear wheel-opening height is known as R height. Adjust and heights that are out of specification. After all adjustments are done, perform a front-end alignment and check headlight aim.

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

*RM UPDATED ON 5/2/2012. *KB

SOME VEHICLES COULD DEVELOP A CONDITION WHERE ONE OR MORE OF THE INSTRUMENT PANEL GAUGE NEEDLES MAY STICK, FLUTTER, OR BECOME INOPERATIVE. CSC LETTER RECEIVED. UPDATED 11/6/08. *PE

INSTRUMENT PANEL CLUSTER GAUGE NEEDLE FUNCTION MAY CAUSE INACCURATE READINGS ON SOME 2003-2004 CADILLAC, CHEVROLET, AND GMC VEHICLES. *NJ UPDATED 2/5/08. *NJ UPDATED 9/5/08. *PE UPDATED 11/4/08. *PE

IS RECEIVED FROM AN ELECTRONIC SERVICE CENTER (ESC). *NJ

*KB

AXLE DIFFERENTIAL LEAK SEAL SHAFT. *KB

*TT

*TT

*TT

*TT

*TT

*EH

*EH UPDATE. *TT

*TT THIS BULLETIN REPLACED PREVIOUS BULLETIN 04-08-111-001, DATED 01/01/2004. *TT

*TT

RECALL 04007A. GM PARTS BULLETINS & INFORMATION. *TT UPDATED *EH

*SC

*MJ

*MJ

ALSO TO INCLUDE 2005 MODELS. *TT

*TT

*TT

*TT

*MR

SERVICE VME. SIT BULLETIN 1450940. *TT

*TT

SIT BULLETIN 1404207. *TT

SERVICE VME. SIT BULLETIN 1411219. *TT

*TT

*TT

*TT

*TT 03-08-43-002, DATED 03/01/2003 REPLACED. *TT

E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

the warranty transaction submission procedures that support the Personal Property Damage process.

Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

Only).

Spin-On Oil Filters.

the warranty transaction submission procedures that support the Personal Property Damage process.

Only).

and Canada.

Spin-On Oil Filters.

Spin-On Oil Filters.

Spin-On Oil Filters.

independent causes (GM Canada Dealers Only).

Spin-On Oil Filters.

Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.

Only).

Operations and Customer Enthusiasm

service.

operations to claim when the concern cannot be duplicated. Also provides information on how to submit claims within the global warranty managment.

service.

operations to claim when the concern cannot be duplicated. Also provides information on how to submit claims within the global warranty managment.

operations and customer enthusiasm.

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.

that vehicles can be fixed right the first time in for service.

service.

warranty transaction submission procedures that support the Personal Property Damage process.

Operations and Customer Enthusiasm

Operations and Customer Enthusiasm

Empowerment Program and Goodwill Cases.

procedures.

*TT

*TT

*SC

*MJ

SERVICE VME. *TT

SERVICE VME. SIT BULLETIN 1414321. *TT

SERVICE VME. SIT BULLETIN 1410828. *TT

*TT GM ADMINISTRATIVE MESSATE. *TT

*TT

*TT

Turns.

to be replaced if the brake pedal moves or applies on its own at a full turn.

to be replaced if the brake pedal moves or applies on its own at a full turn.

to be replaced if the brake pedal moves or applies on its own at a full turn.

to be replaced if the brake pedal moves or applies on its own at a full turn.

to be replaced if the brake pedal moves or applies on its own at a full turn.

brake pipes, Customer Care and Aftersales (CCA) has released pre-formed and pre-flared hydraulic brake pipe kits.

brake pipes, Customer Care and Aftersales (CCA) has released pre-formed and pre-flared hydraulic brake pipe kits.

brake pipes, Customer Care and Aftersales (CCA) has released pre-formed and pre-flared hydraulic brake pipe kits.

brake pipes, Customer Care and Aftersales (CCA) has released pre-formed and pre-flared hydraulic brake pipe kits.

to be replaced if the brake pedal moves or applies on its own at a full turn.

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.

brake pipes, Customer Care and Aftersales (CCA) has released pre-formed and pre-flared hydraulic brake pipe kits.

brake pipes, Customer Care and Aftersales (CCA) has released pre-formed and pre-flared hydraulic brake pipe kits.

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.

to be replaced if the brake pedal moves or applies on its own at a full turn.

to be replaced if the brake pedal moves or applies on its own at a full turn.

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.

TO BE REPLACED IF THE BRAKE PEDAL MOVES OR APPLIES ON ITS OWN AT A FULL TURN.

ARE AVAILABLE, EXCEPT REAR AXLE CROSSOVER PIPE. MODEL 1999-2007 SILVERADO, SIERRA, 2000-2006 ESCALADE MODELS, AVALANCHE, SUBURBAN, TAHOE, YUKON MODELS. *PE UPDATED 7/18/14. *PE UPDATED 12/9/14. *PE

(REGROUND EBCM GROUND). *KB

*KB

*TT UPDATED 3/26/10. *PE

*TT

*TT

RKE FUNCTION FOR PANIC ALARM WORKS. *TT

*TT UPDATE. *TT

*TT

*TT

TROUBLE CODES (DTCS), DIC SHOWS UNKNOWN DRIVER, VARIOUS ELECTRICAL RELATED CONDITIONS. INCLUDES ESCALADE ESV AND EXT MODEL. *TT

*TT UPDATED 10/23/09. *PE

SERVICE VME. 2004 GMC DENALI INCLUDED. *TT *MJ *TT

*TT

Fog/Driving Lamp Damage.

Accessories.

Guidelines.

will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49). These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.

Guidelines.

will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49). These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.

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.

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.

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.

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.

what should be considered warranty replacement and not

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.

headlamp, tail lamp, license lamp or fog/driving lamp damage that are not considered warrantable.

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.

at start up after cold soak and that this is considered a normal conditon and no repairs are necessary

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

*NJ

*TT

LOW TIRE LIGHT ON AND OR DIC CHECK TIRE PRESSURE MESSAGE WHEN COLD. *SC

*TT

*TT

*TTT

*TT

*TT

*EH

*TT

THIS BULLETIN PROVIDES INFORMATION REGARDING RECREATIONAL (DINGHY) TOWING FOR CERTAIN VEHICLES INCLUDING 1988-2004 CHEVROLET AND GMC LIGHT DUTY TRUCKS. *TT

SERVICE VME. SIT BULLETIN 1411230. *TT

THIS BULLETIN PROVIDES INFORMATION REGARDING RECREATIONAL (DINGHY) TOWING FOR CERTAIN VEHICLES INCLUDING 1988-2004 CHEVROLET AND GMC LIGHT DUTY TRUCKS. *TT

SERVICE VME. THIS BULLETIN REPLACES 01414A DATED 11/18/03. *TT

*TT

radios and instrument panel clusters, provides exampls on whats an acceptable for warranty and whats not

radios and instrument panel clusters, provides exampls on whats an acceptable for warranty and whats not

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.

that they only get a few channels.

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.

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.

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.

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.

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.

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.

Dealer should be advised at this time, there are no provisions to add this option to vehicles that were not built with it.

THE VEHICLE'S XM RADIO ONLY HAS XM PREVEIW CHANNELS.

*TT

GM TECH LINKS. *TT

CHECK TIRE PRESSURE AND OR XX TIRE HIGH/LOW DISPLAY IS CANCELED WITHIN 20 SECONDS OF THE PRESSURE ADJUSTMENT. *SC

*EH

*TT

*JB

*TT

*MJ

*TT

*MJ

*TT

*TT

ALSO INCLUDING GMC DENALI 2004. *TT

*MR

ALSO INCLUDING 2004 HUMMER H2. *MR

*TT

*MR

*MR *TT

SIT BULLETIN 1410305. GMC DENALI 2004 INCLUDED. *TT

2004 CHEVROLET CANYON, GMC DENALI, GMC COLORADO ALSO INCLUDED. *TT

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.

customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

additive.

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.

customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

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.

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.

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.

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.

using the evaporative emission cart smoke machine and ultrasonic leak detectortools.

debris have entered the exhaust system.

additives.

usage of E85 fuel in GM vehicles.

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.

*PE

GM TECH LINK. *TT

*TT

(2004-2005 GMC DENALI) *SC

THE REAR HEAT SHIELD EXTENSION IS NO LONGER NEEDED AND SHOULD NOT BE REINSTALLED ON FUEL TANKS WITHOUT THE RETAINER NUB. *TT

*TT POOR PERFORMANCE AND/OR FUEL GAUGE READS INACCURATE/INCORRECT. *TT

*TT

*MR

*MR

SIT BULLETIN 1411567. *TT

SERVICE VME. *TT

*TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT

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 throttle plate is opened rapidly and advises the customer that it is normal for the delay.

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.

TransFlow.

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.

essential tool J-45096 TransFlow.

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.

forward ranges immediately after replacing the input housing. Technician will inspect the 3-4 clutches and the forward clutch oil feed passages for leakage between circuits. Technician should apply regulated compressed air to the 3-4 clutch feed hole and the forward clutch feed hole one at a time with the input housing. Technician will need to replace the input housing if there is an air leak 3-4 clutches.

protection or tint offered by the windshield or side glass. Technician should be advised Windshield reduces Ultraviolet rays down to 4% or less. Front side door glass reduces Ultraviolet rays down to 35% or less. Windshields are SOLAR glass with a light transmittance of >/=70%. Front door glass are Solar glass with a light transmission of >/=70%. Rear door glass, quarter windows and back windows can use either Solar glass (>/=70%) or Privacy glass, which has a light transmittance of 20%.

or tint offered by the windshield or side glass. Technician should be advised Windshield reduces UV rays down to 4% or less. Front side door glass reduces UV rays down to 35% or less. Windshields are SOLAR glass with a light transmittance of >/=70%. Front door glass are Solar glass with a light transmission of >/=70%. Rear door glass, quarter windows and back windows can use either Solar glass (>/=70%) or Privacy glass, which has a light transmittance of 20%.

DO NOT REPLACE ENTIRE STEERING GEAR FOR PITMAN SEAL LEAK. TECHNICIANS HAVE BEEN REPLACING ENTIRE STEERING GEARS DUE TO NOT BEING ABLE TO SERVICE JUST LEAKING PITMAN SHAFT SEAL. *PE UPDATED 5/9/11. *PE

ALL 2000-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION. *PE

*NJ UPDATED ON 6/30/2011. *KB

DAMAGED 2-4 OR 3-4 CLUTCH. *KB UPDATED 10/31/07. *NJ

*TT

*TT

*TT

TO INCLUDE 2001-2004 CHEVROLET AND GMC LIGHT DUTY FULL-SIZE PICKUP AND UTILITY MODELS. *TT

ALSO TO INCLUDE THE PONTIAC GTO 2005. *TC

*TT

*TT

*TT

*TT *MJ

*TT

repairs requiring balance and Road Force measurement.

repairs requiring balance and Road Force measurement.

ride characteristics of GM cars and trucks.

used to install wheels onto vehicles

truck models only

used to install wheels onto vehicles

truck models only

alignment and find an alignment dowel pin missing .

alignment and find an alignment dowel pin missing .

management submission information.

*TT

*TT

*TT

*TT

*TT

*TT

THIS SERVICE BULLETIN REPLACES 020310001. *EH UPDATE. *TT

*TT UPDATED. *NM

*EH

(TO INCLUDE 2004-05 GMC DENALI) *SC

*TT

*MR

*TT UPDATED 08-15-07. *KB

The customer communication requested return of unsold inventory to inspect for the spline size. If the spline size is incorrect it will not have a tight fit with the mating component, and would lead to detectable play and/or noise when steering.

concern of lack of steering assit when stopped or parking lot manuvers.

concern of lack of steering assit when stopped or parking lot manuvers.

concern of lack of steering assit when stopped or parking lot manuvers.

Technician will need to flush and refill the power steering system with Lucas Power Steering Fluid with Conditioners. Technician will replace the power steering pump with the latest design if the fluid is not available.

*PE

*TT

*EH UPDATED *EH UPDATED. *KB

*TT

*TT

ALSO INCLUDES 2004 GMC DENALI. *TT

*TT

SERVICE VME. *TT

*MR

*MR

SIT BULLETIN 1416474. *TT

*TT

*TT

*TT UPDATE. *TT

Information and Transaction Submissions Procedure and general content updates.

Operation.

Information.

customer wishes.

Information.

information/bulletin PI0746C.

Technician will need to press the OnStar button and verify they have an active account and that the call connects with data and location.

*NJ UPDATED 7/17/2008. *PE

UPDATE ON NEW I-SHAFT. *KB

*EH UPDATED 03-01-07. *KB

VARIOUS MODELS INCLUDING 03-05 CHEVROLET FULL SIZE TRUCKS AND UTILITIES, AND GMC FULL SIZE TRUCK. *EH

*TT 01972A REPLACED AND UPDATED 01/01/04. *SC

*PE

*TT

*EH

*EH

*TT

*EH

*TT

*TT

CURRENTLY THE A/C LOW PRESSURE SWITCH OPEN/CLOSE PRESSURES CANNOT BE ACCURATELY DETERMINED BY MEASURING PRESSURE AT THE LOW SIDE SERVICE PORT. *TT

*TT

ALSO INCLUDING MODELS: 2003-2004 GMC YUKON XL, DENALI XL, 2003-2004 SIERRA DENALI. *MR

*TT THIS BULLETIN REPLACES 03-01-38-019 DATED 11-01-2003. TO INCLUDE VARIOUS MODLES INCLUDING 2002-2004 COMMERCIAL UPFITTER CHASSIS VEHICLES. *TT

*TT UPDATE. *TT

SYNCHRONIZING THE DRIVER AND PASSENGER SET TEMPERATURES. *TT

Technician should not replace the bearing for grease purge. Technician should be advised to not clean the purged grease from the area immediately on or adjacent to the seals because this grease provides additional protection. Technician should only replace the bearing if the seals show visible damage, bearing endplay is greater than 0.005" or 0.13mm, bearing exhibits rough rotation, or bearing exhibits abnormal noise.

HOSE, OR THE COMPRESSOR SELF TEST MAY BE INOPERATIVE. ALSO INCLUDED SUBURBAN LD MY 2001-2013, YUKON DENALI XL MY 2013, YUKON XL LD 2001-2013 *JS

*TT

*MJ

*TT

belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button sticking.

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

TO INCLUDE 2003-2006 CHEVROLET/GMC FULL SIZE PICKUP AND UTILITY MODELS. *TT

*TT