Service bulletins for the 2021 GMC Acadia
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
847 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Air bags are shown. Show all
| 21-NA-005 | 2023-07-14. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion. |
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| PIT5847F | 2022-10-17. Service bulletin. POWER TRAIN; FUEL SYSTEM, GASOLINE; AIR BAGS; LANE DEPARTURE. This Preliminary information communicates that a vehicle may come into the dealer with various concerns which may include a service engine light or various warning messages on the DIC. The technician is instructed to inspect a wiring harness for chaffing on a bracket which is located beneath the battery tray, at a transmission stud and at the transmission oil cooler line bracket. If damage to the harness is found the technician is instructed to repair the damaged wiring and secure the harness away from the bracket so that future damage to the harness will be eliminated. |
| 21NA176 | 2022-05-31. Service bulletin. LANE DEPARTURE; AIR BAGS. This service bulletin provides repair information to correct a customer concern of Airbag Warning Lamp Illuminated on Driver Information Center (DIC), DTC B0017 01 B0024 01 or B001E 01 Set. |
| 21NA005 | 2022-05-31. Service bulletin. AIR BAGS. This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion. |
| PIC5650J | 2021-09-13. Service bulletin. POWER TRAIN; AIR BAGS. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies. |
| 20NA215 | 2021-05-24. Service bulletin. POWER TRAIN; STEERING; AIR BAGS. This service bulletin provides a procedure to correct a customer concern of Loss of Power Steering Assist, Service Power Steering and/or Steering Assist is Reduced Drive with Care Message Displayed on Driver Information Center (DIC). |
| PIE0611B | 2021-05-03. Service bulletin. AIR BAGS. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Airbag Warning Lamp illuminated on the Driver Information Center (DIC). |
| N202322140 | 2021-02-16. Service bulletin. WHEELS; STEERING; ELECTRICAL SYSTEM; AIR BAGS. Customer Satisfaction Program - certain vehicles may have been built with the incorrect steering wheel airbag coil that does not contain circuitry for the heated steering wheel. This condition does not impact the airbag?s ability to operate. Dealers are to replace with the correct steering wheel airbag coil. |
| N202321920 | 2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING; BACK OVER PREVENTION; AIR BAGS. Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor. |
| PIT5804 | 2021-02-16. Service bulletin. AIR BAGS; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This Preliminary information communicates that a customer may bring a vehicle in with an SES light on. If the technician finds a code P2B87 (auxiliary coolant pump underspeed) set in the ECM they are directed to not replace the G17 heater coolant pump because this will not fix the concern. The techician is instructed to clear the code and release the vehicle to the customer with the explanation that an updated calibration will be released in the future to address the code setting. |
| PIT5804 | 2021-01-25. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; AIR BAGS. This Preliminary information communicates that a customer may bring a vehicle in with an SES light on. If the technician finds a code P2B87 (auxiliary coolant pump underspeed) set in the ECM they are directed to not replace the G17 heater coolant pump because this will not fix the concern. The techician is instructed to clear the code and release the vehicle to the customer with the explanation that an updated calibration will be released in the future to address the code setting. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.