2026 GMC Acadia Technical Service Bulletins

160 technical service bulletins (TSBs) are on record for the 2026 GMC Acadia. 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.

• 11038744Oct 24, 2026Other or unknown. This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener and to replace the opener with a new updated part.
• 11038585Oct 16, 2026Other or unknown. This Preliminary information communicates a potential chirp noise coming from the engine compartment.
• 11038461Oct 7, 2026Other or unknown. This PI communicates the possibility of dtc U11E2 setting as current or history due to poor connection at Intake Cam Actuator
• 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.
• 11037797Sep 28, 2026Other or unknown. This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.
• 11037555Sep 26, 2026Other or unknown. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
• 11037552Sep 22, 2026Other or unknown. A dealer is advised to perform no repairs if U3000 SYM 92 is found. Engineering is working on a resolution
• 11037446Sep 15, 2026Other or unknown. If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.
• 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.
• 11037108Aug 31, 2026Other or unknown. A customer may complain of a vibration under heavy acceleration or turning. Dealer is advised that engineering is investigating the concern and no repairs should be performed at this time.
• 11036715Aug 28, 2026Other or unknown. This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.
• 11036709Aug 27, 2026Other or unknown. This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on 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…
• 11036690Aug 27, 2026Other or unknown. This Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with the image processor #2 and how to restore communication
• 11036694Aug 24, 2026Other or unknown. A customer may complain of a vibration under heavy acceleration or turning. Dealer is advised that engineering is investigating the concern and no repairs should be performed at this time.
• 11036400Aug 21, 2026Other or unknown. This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on 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…
• 11036392Aug 20, 2026Other or unknown. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
• 11036222Aug 14, 2026Other or unknown. This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.
• 11036219Aug 12, 2026Other or unknown. This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on 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…
• 11036215Aug 11, 2026Other or unknown. This document assists dealer technician's with diagnosing a MIL P0299.
• 11036195Aug 5, 2026Other or unknown. This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.
• 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.
• 11035710Jul 30, 2026Other or unknown. This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not present, verify the camera is clean, then contact PQC if no issue is found.
• 11035353Jul 24, 2026Other or unknown. This Preliminary information communicates that a vehicle may be encountered with an SES light on and code P059F set. The technician is instructed to inspect the bracket in front of the grill shutter for being bent before replacing the shutter.
• 11035340Jul 21, 2026Other or unknown. PI to help diagnose A/C concern
• 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.
• 11035407Jul 13, 2026Other or unknown. • Improvements to system responsiveness • Improvements to camera image clarity • Fixes to prevent blank screens and audio drop-outs • Improvements to vehicle software update installation
• 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.
• 11034021Jun 18, 2026Other or unknown. This preliminary information is to inform technicians and customers that the HUD will not retain its current settings. No parts should be replaced.
• 11034014Jun 17, 2026Other or unknown. This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on 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…
• 11034038Jun 16, 2026Other or unknown. • Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation, and Super Cruise.
• 11033752Jun 5, 2026Other or unknown. Fog lamp control may be missing from radio display after a BCM update. Engineering is investigating.
• 11033751Jun 5, 2026Other or unknown. Fog lamp control may be missing from radio display after a BCM update. Engineering is investigating.
• 11033750Jun 5, 2026Other or unknown. A dealer is advised to perform no repairs if U3000 SYM 92 is found. Engineering is working on a resolution
• 11033726Jun 3, 2026Other or unknown. This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on 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…
• 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.
• 11032936May 27, 2026Other or unknown. Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest…
• 11032960May 22, 2026Other or unknown. If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.
• 11032784May 14, 2026Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.
• 11032781May 14, 2026Other or unknown. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
• 11032771May 11, 2026Other or unknown. The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters. 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.
• 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
• 11032624May 8, 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
• 11032455May 8, 2026Other or unknown. Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest…
• 11032919May 6, 2026Other or unknown. • Improvements to the availability of driver assistance features.
• 11032560Apr 30, 2026Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.

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