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.

• 10173703Mar 16, 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.
• 10174088Mar 13, 2020Electrical system. This informational bulletin provides information for dealers/technicians on Accessory Rear Seat Infotainment (RSI) Shuts Off, Coinciding with Closing of Door or Liftgate.
• 10174445Mar 11, 2020Engine. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to engine oil found under their vehicle.
• 10174082Mar 9, 2020Transmission and drivetrain, Back-over prevention (rear camera). This technical bulletin provides a procedure to replace the front differential carrier sun gear if found the cause of the high pitch noise from the transmission.
• 10174299Mar 6, 2020Equipment. This informational bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).
• 10174300Mar 4, 2020Tires. This informational bulletin provides information for dealers/technicians on Use of Nitrogen Gas in Tires.
• 10174301Mar 3, 2020Equipment. This warranty administration bulletin provides information on Warranty Administration ? Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
• 10173671Mar 3, 2020Engine. This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer removal.
• 10174307Mar 2, 2020Equipment. This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
• 10173416Feb 28, 2020Engine, Equipment. This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules.
• 10173393Feb 28, 2020Equipment, Body and structure. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
• 10172341Feb 28, 2020Equipment, Electrical system, Body and structure. This Preliminary information communicates a work around when only 11 digit PUN (Part Unique Number) is seen on Service Solenoid Body Assembly.
• 10173415Feb 27, 2020Equipment. This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only).
• 10173414Feb 26, 2020Tires, Equipment. This warranty administration bulletin provides information on the tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty.
• 10173407Feb 26, 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.
• 10172809Feb 26, 2020Equipment, Suspension. This technical bulletin provides a procedure to modify the rear suspension rebound pin and reinstall to correct a condition of Squeak/Creak Noise from Rear Suspension.
• 10172668Feb 21, 2020Brakes, Electrical system. Customer Satisfaction Program - The brake system control module software in these vehicles may contain an error. If (i) the vehicle is started remotely using the MyChevrolet, MyGMC, or MyCadillac mobile app or (ii) the driver enters the vehicle and waits five or more minutes before starting the vehicle using the ignition, this software error can, in rare cases, disable the vehicle?s electronic brake assist and…
• 10172330Feb 21, 2020Body and structure. This Preliminary information communicates that a vehicle may be encountered with a "service park assist system" message or a rear lift gate that will not open passively. The technician is instructed to inspect connector X400 for evidence of water intrusion. The technician is instructed to replace the harness and terminals in the body side connector as needed if water intrusion or corrosion is found.
• 10172666Feb 19, 2020Engine cooling. Service Update - On certain 2020 model year GMC Acadia vehicles, equipped with a 2.5L engine (RPO LCV), the dash panel silencer attachment stud may lack sufficient clearance to the intake manifold resonator. When the engine is under load, the stud could make contact with the resonator. Dealers will cut off 6mm of the center stud.
• 10172323Feb 18, 2020Engine, Equipment. This Preliminary information communicates to the technician the vehicle concern of starter flex plate having broken teeth. This can create a noise during starting or may even have the starter spin but not crank over the engine. The document directs the technician to replace the flex plate and inspect the starter pinion drive teeth and replace starter assembly as needed.
• 10173418Feb 14, 2020Equipment. This Warranty Administration bulletin provides information on Essential Tools that include Consumable Parts (U.S. Only).
• 10173417Feb 14, 2020Equipment, Wheels. This informational bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
• 10172773Feb 14, 2020Equipment. This warranty administration bulletin provide policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.
• 10172654Feb 10, 2020Equipment, Electrical system. Customer Satisfaction Program - Certain 2020 model year GMC Acadia vehicles without a sunroof, equipped with an Infotainment system (RPO IOU), and Universal Garage Door Opener (RPO UG1), may have been built with an export version of the universal garage door opener (UGDO). The export UGDO will not operate with US/CA garage door openers and may transmit less than the allowed electric field strength. Dealers will…
• 10172784Feb 7, 2020Equipment, Engine. This Bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
• 10172304Feb 4, 2020Equipment. 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.
• 10171319Jan 31, 2020Electrical system. This Preliminary information communicates to the technician the vehicle concern of starter flex plate having broken teeth. The can create a noise during starting or may even have the starter spin but not crank over the engine. The document directs the technician to replace the flex plate and the starter assembly.
• 10172294Jan 29, 2020Equipment. This informational bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 10171907Jan 29, 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.
• 10172293Jan 27, 2020Equipment, Wheels. This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment.
• 10171875Jan 23, 2020Engine cooling. This informational bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.
• 10171302Jan 23, 2020Body and structure. This Preliminary information communicates a work around when only 11 digit PUN (Part Unique Number) is seen on Service Solenoid Body Assembly.
• 10171300Jan 23, 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.
• 10171887Jan 22, 2020Latches, locks and linkages, Body and structure. This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
• 10172285Jan 21, 2020Equipment. This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.
• 10171888Jan 17, 2020Equipment. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
• 10172292Jan 13, 2020Electrical system, Equipment. This bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar® Vehicle Communication Interface Modules (VCIM) (GMNA Only).
• 10171270Jan 13, 2020Steering, Lane departure. This Preliminary Information communicates to the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from…
• 10171260Jan 8, 2020Transmission and drivetrain. This Preliminary information communicates a possible BCM concern if DTC P0747 sets during engine cranking when the transmission is in park.
• 10171878Jan 2, 2020Fuel system, Equipment. This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to 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.
• 10170486Dec 19, 2019Electrical system. This Preliminary Information communication provides information to the technician for the adaptive cruise control or lane keep assist unavailable message in the driver?s information center after the vehicle has been parked in direct sunlight and high ambient temperatures. The cameras electronic control unit?s internal operating temperature range is -40 degrees Celsius to 85 degrees Celsius.
• 10170484Dec 19, 2019Lane departure. This Preliminary Information communicates to the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from…
• 10170701Dec 18, 2019Seats. This technical bulletin provides repair information to correct a customer concern of a squeak, rattle or creak coming from the second row/rear seat area.
• 10170490Dec 18, 2019Equipment. This technical bulletin provides repair information to correct a customer concern of the Universal Garage Door Opener will not program.
• 10170498Dec 12, 2019Equipment. This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
• 10170710Dec 11, 2019Equipment. This informational bulletin provides information for dealers/technicians on Radio Software Version C146 Over-the-Air Update.
• 10170709Dec 10, 2019Electrical system. This informational bulletin provides information to give the customer the option of replacing the 2020 model year antenna and base, with the 2019 model year antenna.
• 10170703Dec 10, 2019Body and structure, Visibility (wipers, defrost, mirrors). This technical bulletin provides repair information to correct a customer concern of hearing a rattle in the headliner, rear of the front sunroof window.
• 10170491Dec 10, 2019Equipment. This Technical bulletin provides a service procedure for dealers/technicians on installation of Radio Software Version U148 Over-the-Air Update.
• 10169357Nov 26, 2019Equipment. This informational bulletin provides information on key code security rules and information on GM keycode look-up applications.

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