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.
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Only bulletins with component: Driver assistance are shown. Show all
| PIC6420B | 2021-02-16. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION. This Preliminary information communicates information on coax cable connection concerns that can cause a black screen in reverse. |
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| PIT5805 | 2021-01-25. Service bulletin. BACK OVER PREVENTION. This Preliminary information communicates that a dealer may encounter a vehicle that is making a grinding or growling noise on the first few brake applications after the vehicle has been sitting overnight. The dealer is instructed to perform no repairs at this time as engineering is looking into a repair. The dealer is advised that this PI will be converted into a bulletin with repair instruction when updated parts are available. |
| PIC6425A | 2021-01-25. Service bulletin. BACK OVER PREVENTION:SOFTWARE. This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released. |
| PIC6425 | 2021-01-25. Service bulletin. BACK OVER PREVENTION:SOFTWARE. This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released. |
| PIC6420C | 2021-01-25. Service bulletin. ELECTRICAL SYSTEM:ADAS:VIDEO MONITOR/SCREEN. This Preliminary information communicates information on coax cable connection concerns that can cause a black screen in reverse. |
| PIC6420B | 2021-01-25. Service bulletin. ELECTRICAL SYSTEM:ADAS:VIDEO MONITOR/SCREEN. This Preliminary information communicates information on coax cable connection concerns that can cause a black screen in reverse. |
| PIC6420A | 2020-12-14. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; ELECTRICAL SYSTEM:ADAS:VIDEO MONITOR/SCREEN. This Preliminary information communicates information on coax cable connection concerns that can cause a black screen in reverse. |
| PIT5551F | 2020-11-16. Service bulletin. FORWARD 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". |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.