2018 Chevrolet Impala problems and complaints
Owners have filed 59 complaints with NHTSA about the 2018 Chevrolet Impala. The most-reported areas: Unknown Or Other (16), Power Train (11), Electrical System (11).
Key takeaways
- 59 owner complaints on file with NHTSA.
- 6 involve a crash, 0 a fire, 2 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Unknown Or Other | 16 | 27% |
| Power Train | 11 | 19% |
| Electrical System | 11 | 19% |
| Service Brakes | 8 | 14% |
| Steering | 7 | 12% |
| Engine | 7 | 12% |
| Air Bags | 6 | 10% |
| Exterior Lighting | 4 | 7% |
| Seats | 3 | 5% |
| Vehicle Speed Control | 2 | 3% |
| Wheels | 2 | 3% |
| Fuel/Propulsion System | 2 | 3% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2018 Chevrolet Impala 4 DR FWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Power Train - filed 2026-06-26
The transmission failed, shifting is no longer smooth. It hesitates and shakes the entire car, and the car slows down to almost a crawl uphill. I understand this is an issue with Chevrolet Impalas. So now I have an $8200 bill for a problem I was never told about, and that GM knew that it existed. So, yes, the issue ...
Fuel System, Gasoline - filed 2026-03-30
The contact owns a 2018 Chevrolet Impala. The contact stated that while the A/C was activated during the summer of 2025, the A/C failed to function as intended. The contact stated that hot air was blowing through the vents. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagno...
Steering - filed 2026-02-08
I was driving and parked the car at the store. After checking out I went to the car got ready to leave and started backing out and the car would not turn to the left at all. I took it to the shop and was told they do not see anything wrong with my car but a steering message is coming up.
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More for the 2018 Chevrolet Impala
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.