Service bulletins for the 2020 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.
885 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Transmission and driveline are shown. Show all
| PIP5697A | 2020-04-13. Service bulletin. ENGINE; EQUIPMENT; POWER TRAIN. This Preliminary information communicates a possible BCM concern if DTC P0747 sets during engine cranking when the transmission is in park. |
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| PIP5697 | 2020-02-10. Service bulletin. POWER TRAIN. This Preliminary information communicates a possible BCM concern if DTC P0747 sets during engine cranking when the transmission is in park. |
| 990420002K | 2019-11-25. Service bulletin. POWER TRAIN. This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations. |
| 18NA359 | 2019-11-25. Service bulletin. POWER TRAIN. This informational bulletin advises the tech of a possible normal condition caused when the transmission performs a 1-2 upshift at light throttle and why the D in the PRNDL will flash. |
| 16NA338 | 2019-11-25. Service bulletin. POWER TRAIN. 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. |
| PIP5608C | 2019-11-12. Service bulletin. POWER TRAIN. This Preliminary information communicates to perform a transmission fluid drain and fill to correct a TCC shudder concern. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.