2023 Chevrolet Colorado Technical Service Bulletins

647 technical service bulletins (TSBs) are on record for the 2023 Chevrolet Colorado. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11038821Oct 8, 2026Other or unknown. This update contains a required software change to help improve the overall software update and diagnostics process. 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.
• 11038460Oct 7, 2026Other or unknown. This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
• 11038463Oct 5, 2026Other or unknown. This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. 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.
• 11038162Oct 2, 2026Other or unknown. This preliminary information is to inform technicians and customers to not replace any parts at this time. This PI will be updated to a bulletin when a repair is available.
• 11038136Sep 28, 2026Other or unknown. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
• 11038132Sep 28, 2026Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.
• 11037555Sep 26, 2026Other or unknown. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
• 11037460Sep 23, 2026Fuel system. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
• 11037321Sep 16, 2026Fuel system. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
• 11037312Sep 11, 2026Fuel system. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2023-2024 model year Chevrolet Colorado / Silverado 1500 and GMC Canyon / Sierra 1500 vehicles equipped with a 2.7L engine (RPO L3B). The Engine Control Module (ECM) may not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.
• 11037320Sep 10, 2026Other or unknown. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
• 11037253Sep 4, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
• 11037256Sep 2, 2026Other or unknown. This preliminary information is to inform technicians and customers that GM is aware of the issue and the vehicle can still be driven. When a repair is available, this PI will be updated.
• 11036648Sep 1, 2026Fuel system. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
• 11036713Aug 27, 2026Other or unknown. This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. 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.
• 11036392Aug 20, 2026Other or unknown. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
• 11036188Aug 13, 2026Other or unknown. Certain vehicles may experience reduced or intermittent Telematics Control Module functionality. Dealers are to reprogram the Telematic Control Module to the latest software level.
• 11036143Aug 12, 2026Fuel system. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
• 11035685Aug 4, 2026Fuel system. Certain vehicles may have a condition in which the Engine Control Module (ECM) does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.
• 11036194Aug 3, 2026Other or unknown. This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.
• 11035709Jul 31, 2026Other or unknown. This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. 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.
• 11035693Jul 28, 2026Other or unknown. This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
• 11035354Jul 24, 2026Other or unknown. This PI communicates diagnostic information to assist Technicians with a possible transmission shudder
• 11035340Jul 21, 2026Other or unknown. PI to help diagnose A/C concern
• 11035308Jul 21, 2026Other or unknown. This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
• 11035019Jul 15, 2026Engine. Certain vehicles listed above, may have a condition where coolant leaks from the radiator hose quick connect at the radiator inlet. 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.
• 11034769Jun 23, 2026Other or unknown. This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
• 11034065Jun 17, 2026Other or unknown. This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates.
• 11034038Jun 16, 2026Other or unknown. • Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation, and Super Cruise.
• 11034001Jun 10, 2026Other or unknown. This PI provides diagnostic steps for dealer technicians to verify the condition and ensure that part replacement is necessary
• 11033987Jun 10, 2026Other or unknown. This PI advises dealers that if the K160 Brake System Control Module sets DTC P0606 along with P0562 and/or P25A2, 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.
• 11033988Jun 9, 2026Other or unknown. This PI advises dealers that if DTC P0606 and/or P0607 are set in the K160 EBCM, additional diagnostic aids should be followed to ensure the module requires replacement
• 11033150May 27, 2026Other or unknown. This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available.
• 11032955May 21, 2026Other or unknown. The document advise technicians after an engine repair involving removal of the camshaft actuators, the vehicle may set 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.
• 11032952May 21, 2026Other or unknown. This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.
• 11032784May 14, 2026Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.
• 11032777May 14, 2026Other or unknown. This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
• 11032768May 11, 2026Other or unknown. This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.
• 11032767May 11, 2026Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.
• 11032764May 11, 2026Other or unknown. Pi created to provide GM dealers with information on gathering information for projection issue
• 11032763May 11, 2026Other or unknown. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
• 11032620May 6, 2026Other or unknown. This Preliminary information communicates to GM technicians to not replace any parts at this time if they come across this concern to reset the radio at this time. The PI will be updated or replaced with TSB once a determination has been made.
• 11032619May 6, 2026Other or unknown. This Preliminary information communicates to dealership technicians to perform the reset for the 2 modules noted above.
• 11032560Apr 30, 2026Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.
• 11032559Apr 30, 2026Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.
• 11031947Apr 25, 2026Other or unknown. This PI describes the repairs to perform if P0446 set and water and/or ice is found on the fuel pump module.
• 11030974Apr 1, 2026Other or unknown. This preliminary information communicates information about how to determine if a wheel and tires size change is available.
• 11030090Mar 10, 2026Other or unknown. This Preliminary Information describes steps taken to inspect for coolant leak if P3075 is present.
• 11030092Mar 9, 2026Other or unknown. This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
• 11030091Mar 9, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

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