2020 GMC Acadia Technical Service Bulletins

885 technical service bulletins (TSBs) are on record for the 2020 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.

• 10184495Nov 6, 2020Equipment, Body and structure, Electrical system. This technical bulletin provides repair information to correct a customer concern of the front sunroof window intermittently does not open or close, and/or binds and closes at an angle.
• 10184483Nov 6, 2020Brakes, Engine, Equipment. This technical bulletin provides repair information to correct a customer concern of the Service Engine Soon Lamp illuminated and/or Service Power Brake Assist message displayed, with DTCs P0557 or P0558 Stored.
• 10184094Nov 5, 2020Electrical system. This Preliminary information communicates information on coax cable connection concerns that can cause a black screen in reverse.
• 10183211Oct 30, 2020Equipment, Engine cooling. This service bulletin provides information on Improved Oil Filter Gasket Design for Spin-On Oil Filters PF63, PF64 and PF48.
• 10183198Oct 27, 2020Electrical system. This service bulletin provides information and a service procedure for dealers/technicians on OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes.
• 10182571Oct 27, 2020Electrical system. This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
• 10183793Oct 26, 2020Electrical system. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to multiple DTC's set after a battery discharge, jump start and/or battery replacement.
• 10183782Oct 23, 2020Transmission and drivetrain, Electrical system, Equipment. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
• 10183126Oct 23, 2020Engine. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10183788Oct 21, 2020Equipment. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the malfunction indicator lamp (MIL) illuminated.
• 10183779Oct 21, 2020Fuel system. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
• 10183178Oct 16, 2020Electrical system, Equipment. This technical bulletin provides repair information to correct a customer concern of Voice Recognition Launches or Radio Station Changes to an Adjacent Favorite Without Any Button Press.
• 10182554Oct 14, 2020Electrical system. This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
• 10183792Oct 13, 2020Electrical system. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to multiple DTC?s set after a battery discharge, jump start and/or battery replacement.
• 10183143Oct 13, 2020Equipment, Wheels. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.
• 10183223Oct 12, 2020Electrical system. Service Update - Certain 2020 model year Chevrolet Malibu and GMC Acadia vehicles, equipped with an 8" Diagonal Multi-Color Driver Information Center, (RPO UHS), may change radio stations without customer input. Dealers will reprogram the instrument panel cluster (IPC) with SPS and USB.
• 10183780Oct 9, 2020Equipment. This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
• 10182544Oct 8, 2020Electrical system. This Preliminary information communicates DRL circuit #309, gray wire at X104 may have a poor connection due to a backed-out terminal or the wire being pulled too tight.
• 10182540Oct 7, 2020Forward collision avoidance. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
• 10182531Oct 1, 2020Engine cooling. This Preliminary information communicates information for a normal noise operating as designed
• 10181724Sep 30, 2020Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10181178Sep 30, 2020Engine cooling. This Preliminary information communicates the possibility of a engine oil leak that may occur at the cam carrier gasket T joint area due to improper amount of sealer be applied
• 10181675Sep 29, 2020Equipment, Body and structure. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
• 10181177Sep 29, 2020Visibility (wipers, defrost, mirrors). This Preliminary information communicates that a customer may come to the dealer with a complaint of a hum, drone or pulsing type noise at times. On investigation the dealer may discover that this concern only occurs when the customer is driving with one or both rear windows down or one front window down.
• 10181692Sep 25, 2020Transmission and drivetrain. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only).
• 10181725Sep 24, 2020Equipment, Engine. This preliminary informational (PI) provides diagnosis and repair information regarding bearing damage or when an engine will not rotate.
• 10181688Sep 22, 2020Brakes. This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in Driver Information Center (DIC), Brake Pedal Travel and Apply May Feel Different, One or More of the Following DTCs May be Set: P0606 with C0021, C05D2, C0595, C2A3B, C0024, C053D, P25A2.
• 10181722Sep 21, 2020Equipment, Electrical system. This technical bulletin provides repair information to correct a customer concern of Radio Software Version U150 Update.
• 10181157Sep 21, 2020Equipment. This Preliminary information communicates information on radio software anamolies and future radio software updates to correct the concern.
• 10181156Sep 21, 2020Equipment. This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support.
• 10181678Sep 11, 2020Engine cooling. This informational bulletin provides information on the new oil filter UPF63R to be used on the HFV6 Engines.
• 10181694Sep 10, 2020Engine, Electrical system. This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Message at Start Up or Shortly after Start Up.
• 10181690Sep 10, 2020Electrical system, Equipment. This technical bulletin provides repair information to correct a customer concern of seeing SD Card Removed error message displayed in the Driver Information Center (DIC).
• 10181670Sep 2, 2020Engine cooling. This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
• 10181660Sep 2, 2020Transmission and drivetrain. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
• 10180312Aug 18, 2020Transmission and drivetrain. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only).
• 10180697Aug 14, 2020Equipment. This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
• 10180317Aug 14, 2020Tires. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10180296Aug 7, 2020Brakes, Wheels. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.
• 10180299Aug 5, 2020Equipment. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
• 10179623Aug 5, 2020Electrical system, Equipment. This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance Center. Dealers will need to contact General Motors Technical Assistance Center for further assistance.
• 10179538Jul 30, 2020Electrical system. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the malfunction indicator lamp (MIL) illuminated.
• 10178949Jul 28, 2020Transmission and drivetrain, Engine. This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
• 10178388Jul 28, 2020Transmission and drivetrain. This Preliminary information communicates that a possible trans fluid leak found may only be residual fluid that was left during the assembly process with no repairs needed if no dye is detected after cleaning and re-evaluation.
• 10178950Jul 21, 2020Wheels, Equipment. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.
• 10178962Jul 17, 2020Electrical system. This technical bulletin provides repair information to correct a customer concern of Voice Recognition Launches or Radio Station Changes to an Adjacent Favorite Without Any Button Press.
• 10178372Jul 15, 2020Transmission and drivetrain. This Preliminary information communicates to perform a transmission fluid drain and fill to correct a TCC shudder concern.
• 10179408Jul 10, 2020Body and structure, Equipment. This bulletin provides information to dealers regarding transportation damage repair claim submission requirements.
• 10178366Jul 9, 2020Electrical system, Equipment. This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support.
• 10178361Jul 2, 2020Electrical system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil.

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