2021 GMC Acadia Technical Service Bulletins

847 technical service bulletins (TSBs) are on record for the 2021 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.

• 10253061Mar 4, 2024Fuel system, Brakes. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
• 10251635Mar 4, 2024Equipment. This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
• 10251525Mar 1, 2024Engine cooling. This engineering information (EI Lite) is requesting technicians use the FPR App process in regard to finding coolant leaking around the Coolant Control Valve (CCV).
• 10251513Mar 1, 2024Other or unknown. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
• 10251714Feb 23, 2024Electrical system. This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stored. Technicians are directed to replace the K111FPDCM if any of these conditions can be validated.
• 10250775Feb 22, 2024Engine cooling. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
• 10251704Feb 21, 2024Forward 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".
• 10250501Feb 20, 2024Seat belts. Customer Satisfaction Program - Certain vehicles may have a condition in which the second-row center seatbelt buckle falls between the seats when the adjacent seat is tipped and slid forward. Dealers are to add an elastic strap.
• 10250579Feb 15, 2024Fuel system, Engine cooling. This informational bulletin explains to the tech on where to look for a possible concern with the rockers causing the MIL to illuminate.
• 10250505Feb 7, 2024Engine cooling, Fuel system. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
• 10250503Feb 7, 2024Engine cooling. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10250347Feb 2, 2024Transmission and drivetrain, Engine cooling. This Warranty Admin service 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.
• 10250007Jan 31, 2024Equipment. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with certain ISO updates on Apple 15 phones and advises customer to update their phone to the lastest ISO update.
• 10250276Jan 30, 2024Equipment, Electrical system. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.
• 10250278Jan 29, 2024Equipment, Electrical system. This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
• 10250258Jan 26, 2024Engine cooling. This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.
• 10249995Jan 24, 2024Body and structure. This Preliminary information communicates information to help diagnose inoperative rear liftgate logo.
• 10250254Jan 23, 2024Transmission and drivetrain. This service bulletin provides a procedure to correct a customer concern of Shudders or Shakes at Low Speeds.
• 10250248Jan 23, 2024Transmission and drivetrain. This service bulletin provides information on a normal characteristic of a transmission that will not shift into overdrive range during cold ambient temperatures.
• 10250244Jan 18, 2024Body and structure. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
• 10249948Jan 16, 2024Visibility (wipers, defrost, mirrors), Body and structure, Equipment. This technical bulletin provides a procedure to correct the condition Sunroof Wind / Air Deflector Inoperative.
• 10249590Jan 16, 2024Equipment. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
• 10249980Jan 12, 2024Equipment. This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be…
• 10249979Jan 12, 2024Equipment. This PI states that a vehicle may exhibit a concern of the cross traffic alert indicators not displaying on the radio screen. While this is a customer dissatisfier, it does not pose a safety concern due to the fact that the customer will still be alerted to an approaching vehicle by the seat vibration. Dealers are advised that engineering is working on a resolution and it will be available by the end of 2023.
• 10249579Jan 12, 2024Engine cooling, Transmission and drivetrain. This PI bulletin advises the technician on the proper way to install the pistons in an engine.
• 10249011Jan 12, 2024Exterior lighting. This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
• 10249037Jan 11, 2024Engine cooling. This informational bulletin advises the tech to validate if oil is leaking into the cooling system and to test and verify were to leak is coming from before replacing all the parts that wouldn't apply to the repair.
• 10249964Jan 8, 2024Fuel system. This Preliminary information communicates a possible issue with the active fuel management rockers causing a misfire and the correction for this concern.
• 10249535Jan 8, 2024Electrical system. This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
• 10249959Jan 5, 2024Transmission and drivetrain. This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set.
• 10249301Dec 21, 2023Electrical system. This Preliminary information communicates information for terminal concerns at X203
• 10249300Dec 21, 2023Exterior lighting. This Preliminary information communicates information for Intellibeam headlamp inoperative and to inspect the low speed data line.
• 10248712Dec 20, 2023Electrical system, Electronic stability control, Steering, Brakes. This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC, multiple DTCs.
• 10249295Dec 18, 2023Equipment. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2.
• 10248706Dec 18, 2023Brakes, Electrical system, Equipment. This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.
• 10249294Dec 15, 2023Other or unknown, Electrical system. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
• 10247548Dec 14, 2023Transmission and drivetrain. This informational bulletin provides Information on Wheel Drive Shaft Replacement and Nut Removal Damage.
• 10249286Dec 13, 2023Equipment. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.
• 10247524Dec 13, 2023Engine cooling. This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil Leak, Malfunction Indicator Lamp (MIL) Illuminated​.
• 10247552Dec 12, 2023Equipment. This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
• 10249281Dec 8, 2023Equipment. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
• 10247192Dec 8, 2023Engine cooling, Equipment, Electrical system. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 10247194Dec 7, 2023Engine cooling. This informational bulletin provides Information on Purge Pump Part Replacement and Purge Part Number Interchange.
• 10249270Dec 6, 2023Equipment. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
• 10246483Nov 29, 2023Engine cooling. This service bulletin provides diagnostic aid information/procedures to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking, rattle, squeak and/or squeal type noises from engine.
• 10246480Nov 20, 2023Transmission and drivetrain. This technical bulletin provides repair information to correct a customer concern of Rear Driveline Module Audible Noise Heard Between 20-70MPH.
• 10245572Nov 17, 2023Body and structure. This technical bulletin provides a procedure to correct the condition of Noise from Roof Area at Speeds 35 MPH and Above.
• 10245563Nov 17, 2023Electrical system. This technical bulletin provides repair information to correct a customer concern of an Intermittent Check Engine Lamp On with Various DTCs Set.
• 10245560Nov 17, 2023Brakes, Electrical system. This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.
• 10245570Nov 16, 2023Electrical system, Transmission and drivetrain. This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

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