2020 GMC Acadia problems and complaints
Owners have filed 107 complaints with NHTSA about the 2020 GMC Acadia. The most-reported areas: Engine (30), Electrical System (29), Power Train (22).
Key takeaways
- 107 owner complaints on file with NHTSA.
- 4 involve a crash, 0 a fire, 2 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 30 | 28% |
| Electrical System | 29 | 27% |
| Power Train | 22 | 21% |
| Steering | 20 | 19% |
| Unknown Or Other | 14 | 13% |
| Fuel/Propulsion System | 9 | 8% |
| Service Brakes | 8 | 7% |
| Forward Collision Avoidance | 8 | 7% |
| Lane Departure | 4 | 4% |
| Vehicle Speed Control | 4 | 4% |
| Back Over Prevention | 3 | 3% |
| Seat Belts | 3 | 3% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2020 GMC Acadia
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Oil filter
- Engine air filter
- Cabin air filter
- Wiper blades
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2020 GMC Acadia SUV FWD | 5/5 | 5/5 | 5/5 | 4/5 |
| 2020 GMC Acadia SUV AWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Electrical System,engine,lane Departure - filed 2026-11-04
GETTING A MESSAGE THAT SAYS STERRING ASSIST IS REDUCED DRIVE WITH CARE. THIS IS A KNOW ISSUE WITH GMC ACADIAS. THE ENGINE COOLANT THERMOSTAT NEED REPLACING. THIS IS A COVERED REPAIR ON 2021 AND LATER MODELS WHERE RECALLS HAVE BEEN ISSUED. IT IS SAFETY ISSUE AND SHOULD BE COVERED ON THIS MODEL AS WELL. MY CAR ONLY HAS ...
Steering - filed 2026-10-04
Thermostat housing failed. Got the message of "Steering Assist Is Reduced – Drive With Care". Have seen this numerous times in message boards. Has been reproduced. Safety is put at risk with the steering assist reduced. Mine happened on an highway.
Steering,engine - filed 2026-09-30
Engine thermostat not functioning properly, therefore the display stayed on cold and would not show temp. It also cause the fan to run fast to cool engine. The AC would not cool and reduce power steering assist error message comes on. This is a known problem by GM and there is a recall for this issue on many of these ...
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More for the 2020 GMC Acadia
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.