2018 GMC Acadia problems and complaints
Owners have filed 396 complaints with NHTSA about the 2018 GMC Acadia. The most-reported areas: Power Train (163), Unknown Or Other (118), Electrical System (109).
Key takeaways
- 396 owner complaints on file with NHTSA.
- 8 involve a crash, 1 a fire, 12 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Power Train | 163 | 41% |
| Unknown Or Other | 118 | 30% |
| Electrical System | 109 | 28% |
| Engine | 34 | 9% |
| Steering | 24 | 6% |
| Service Brakes | 21 | 5% |
| Electronic Stability Control (esc) | 12 | 3% |
| Fuel/Propulsion System | 7 | 2% |
| Lane Departure | 6 | 2% |
| Back Over Prevention | 5 | 1% |
| Suspension | 5 | 1% |
| Vehicle Speed Control | 5 | 1% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2018 GMC Acadia SUV FWD | 4/5 | 5/5 | 5/5 | 4/5 |
| 2018 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 - filed 2026-09-29
I get error electric Steering assist reduced or unavailable drive with care at around 84234 miles on my car . Upon looking up problem on Internet it has to do with the Thermostat. I also found where Gm has a bulletin N252508350 which only seems to cover certain vehicles with the same problem. This seems to happen at a...
Fuel System, Gasoline - filed 2026-09-22
The contact owns a 2018 GMC Acadia. The contact stated that while driving at an undisclosed speed, the power steering message was displayed, and the check engine warning light illuminated. In addition, the temperature gauge remained at zero. The dealer was contacted by phone and made aware of the failure. The vehicle w...
Unknown Or Other - filed 2026-09-20
Urgent code going off due to thermostat not being red gauge is stuck
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More for the 2018 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.