2026 Chevrolet Colorado TSBs
134 Technical Service Bulletins across 13 categories
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34 bulletinsThis preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with...
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the image processor #2 and how to restore communication
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM.
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Advises of how to contact PQC to authorize SDGM replacement.
Certain vehicles listed above may have a condition in which the oil filter was not adequately tightened.
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Dealers are to check and tighten the oil filter if found to be loose.
This PI provides diagnostic steps for dealer technicians to verify the condition and ensure that part replacement is...
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necessary
Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked.
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Dealers are to replace the transfer case.
Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked.
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Dealers are to replace the transfer case.
Pi created to provide GM dealers with information on gathering information for projection issue
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
This Preliminary Information is to inform dealer technicians to not replace anything at this time in regards to this concern.
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The vehicle is still safe to drive with no other issues.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical...
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Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary Information is to inform dealer technicians to not replace anything at this time in regards to this concern.
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The vehicle is still safe to drive with no other issues.
This Preliminary Information is to inform dealer technicians to not replace anything at this time in regards to this concern.
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The vehicle is still safe to drive with no other issues.
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
This Preliminary Information is to inform dealer technicians to not replace anything at this time in regards to this concern.
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The vehicle is still safe to drive with no other issues.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
This Preliminary Information is to inform dealer technicians to not replace anything at this time in regards to this concern.
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The vehicle is still safe to drive with no other issues.
New Vehicle Monitoring Programs Section in IVH
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera...
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and dealers to replace the camera.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication...
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configuration did not complete correctly.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
Engine
27 bulletinsThis Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently...
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investigating.
This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently...
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investigating.
Improvements to start reliability and reduced check engine light activation Improvements to turbo system diagnostics ...
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Improvements to active cabin ventilation Additional protection for the health of your battery Updates to help prevent excessive battery drain and overheating Improvements to the software update system
Certain vehicles listed above, may have a condition where coolant leaks from the radiator hose quick connect at the radiator inlet.
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This special coverage covers the condition described above for a period of 5 years or 60,000 miles (100,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after July 14, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to July 14, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to remove the inlet hose and replace the seal. The repairs will be made at no charge to the customer.
This PI describes a condition where U0288 will falsely set.
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Engineering is aware of the issue and working on the resolution.
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications.
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Engineering is investigating and this PI will be converted to a bulletin when a repair is available.
The document advise technicians after an engine repair involving removal of the camshaft actuators, the vehicle may set...
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p1101 P0172 and or stalls when taken off idle. The technician is instructed to verify the intake and exhaust camshaft actuators are installed onto the correct camshafts.
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters.
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The soft lash adjuster concern is due to debris from the valve rocker arm, entering into the lash adjuster. The document instructs the technician to replace all of the lash adjusters and rocker arms in the entire engine if any soft lash adjusters are found.
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
This Preliminary Information describes steps taken to inspect for coolant leak if P3075 is present.
This Preliminary Information describes steps taken to inspect for coolant leak if P3075 is present.
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters.
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The soft lash adjuster concern is due to debris from the valve rocker arm, entering into the lash adjuster. The document instructs the technician to replace all of the lash adjusters and rocker arms in the entire engine if any soft lash adjusters are found.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft lifters.
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The soft lifter concern is due to manufacturing debris within the lifter when it was manufactured. The document instructs the technician to replace the soft lifter(s) and the rocker arm it operates.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This Preliminary information communicates the possibility of injector related DTC's with malfunction indicator lamp on...
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and potential rough idle
This PI communicates information that the Collision / Detection Systems will revert to default setting of Alert and...
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Brake after an Ignition Cycle due to an Engineering change.
This preliminary information advises dealers that Engine Control Module designation E01 is on a ordering restriction...
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through technical assistance.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple...
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repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
This preliminary information advises dealers that Engine Control Module designation E01 is on a ordering restriction...
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through technical assistance.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This preliminary information discusses the possibility the engine cam shaft actuator connectors may have been switched...
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on assembly setting a DTC.
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
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caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This preliminary information advises the intake manifold cover has been phased out for MY 2026.
Electrical
20 bulletinsThis PI advises dealers that if DTC P0606 and/or P0607 are set in the K160 EBCM, additional diagnostic aids should be...
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followed to ensure the module requires replacement
This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this...
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concern, to perform the steps listed and should be able to reprogram the module and correct this.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary information communicates to dealership technicians to perform the reset for the 2 modules noted above.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This PI describes the repairs to perform if P0446 set and water and/or ice is found on the fuel pump module.
This preliminary information is for technicians that will have this message after USB updating the radio.
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The repair should not involve replacing a module as pressing the reset button will correct this issue.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC'ss
A vehicle may come in with a dead battery.
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Tech is instructed to inspect the window switches for coins.
This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an...
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event like a lightning strike, battery jump started backwards, failure over the air update, etc.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
This Preliminary information communicates to dealership technicians to perform the reset for the 2 modules noted above.
A vehicle may come in with a dead battery.
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Tech is instructed to inspect the window switch for coins.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
This information provides software update information for the K73 Telematics module to correct the symptoms described.
This Preliminary Information communication provides information to the technician about vehicles that have an...
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intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.
This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use...
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for certain repairs, such as Wiring Harness Repairs.
Infotainment
18 bulletinsThis Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This update contains a required software change to help improve the overall software update and diagnostics process.
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Be sure to install this update to be able to receive future software updates. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior.
Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation, and Super...
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Cruise.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
This Preliminary information communicates to dealers a procedure to reset the radio.
This Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This Preliminary information communicates to dealers a procedure to reset the radio.
This Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back...
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to the vehicle.
This Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
Pre-Delivery & Maintenance
10 bulletinsThis PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not...
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present, verify the camera is clean, then contact PQC if no issue is found.
This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not...
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present, verify the camera is clean, then contact PQC if no issue is found.
This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not...
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present, verify the camera is clean, then contact PQC if no issue is found.
This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not...
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present, verify the camera is clean, then contact PQC if no issue is found.
This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not...
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present, verify the camera is clean, then contact PQC if no issue is found.
This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may...
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not pass California smog inspection or smog inspection in other states.
This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector...
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Reconnect Labor Code Numbers.
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
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programs.
This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector...
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Reconnect Labor Code Numbers.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for...
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causing multiple customer concerns that do not have other diagnostic methods to identify them.
Transmission
6 bulletinsThis document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary.
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The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.
This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary.
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The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.
This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary.
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The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.
This PI communicates diagnostic information to assist Technicians with a possible transmission shudder
Fixes to help ensure proper functionality for heating and cooling features.
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Improvements to night mode lights for shifting gears. Fixes for Daytime Running Lamps turning on when set to Off. Fixes to help prevent erroneous missing key messages on driver display. Fixes for accuracy of low tire pressure alert. Fixes for speed threshold for pedestrian alerts.
Certain vehicles, equipped with 8L80 or 8L90 Transmissions, may have a condition in which the reaction carrier cracks.
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Dealers are to replace the reaction carrier.
Brakes
6 bulletinsThis PI provides diagnostic tips for diagnosing electric trailer brakes issues.
This PI advises dealers that if the K160 Brake System Control Module sets DTC P0606 along with P0562 and/or P25A2,...
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additional diagnostic aids should be followed before replacing parts. The PI provides guidance to inspect for low voltage conditions, wiring, terminal concerns, and module communication issues that may cause false or intermittent EBCM DTCs.
This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to...
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facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.
This Preliminary information communicates an issue with the Hydrastar Electric Over Hydraulic trailer brake system...
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causing a voltage spike into the trucks electrical system which is causing DTC C1114 to set.
This preliminary information conveys the possibility of a noise from the brake system.
Software & Calibration
3 bulletinsThis preliminary information is to inform technicians and customers that GM is aware of the issue and the vehicle can still be driven.
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When a repair is available, this PI will be updated.
This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided.
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When a fix is available, this PI will be updated to a bulletin.
This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided.
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When a fix is available, this PI will be updated to a bulletin.
Body & Paint
3 bulletinsThis preliminary information advises stationary hood bumpers have been removed from production as of 6/1/26
Customer Satisfaction Program.
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Certain vehicles listed above may have a condition where there may be a gap and unsealed area in the windshield attachment urethane path along the driver side lower corner. Dealers will reseal the windshield.
This Preliminary information communicates a diagnostic tip on how to resolve a issue of the horn sounding when vehicle...
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doors are being closed and the key in vehicle reminder set to off.
Fuel System
3 bulletinsThis PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and...
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advises of warranty direction.
This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State...
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who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.
This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for...
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analysis.
Tires & Wheels
2 bulletinsThis preliminary information communicates information about how to determine if a wheel and tires size change is...
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available.
This service bulletin provides information on Tire Sidewall Irregularities.
HVAC & Climate
1 bulletinPI to help diagnose A/C concern
Air Bags & Safety
1 bulletinThis Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.