2020 Chevrolet Blazer problems and complaints
Owners have filed 221 complaints with NHTSA about the 2020 Chevrolet Blazer. The most-reported areas: Electrical System (76), Power Train (74), Engine (70).
Key takeaways
- 221 owner complaints on file with NHTSA.
- 5 involve a crash, 0 a fire, 7 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 76 | 34% |
| Power Train | 74 | 33% |
| Engine | 70 | 32% |
| Unknown Or Other | 57 | 26% |
| Steering | 42 | 19% |
| Service Brakes | 11 | 5% |
| Lane Departure | 5 | 2% |
| Vehicle Speed Control | 4 | 2% |
| Fuel/Propulsion System | 4 | 2% |
| Suspension | 4 | 2% |
| Engine And Engine Cooling | 3 | 1% |
| Air Bags | 3 | 1% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2020 Chevrolet Blazer SUV AWD | 5/5 | 5/5 | 5/5 | 4/5 |
| 2020 Chevrolet Blazer SUV FWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Steering,power Train,engine - filed 2026-10-08
The thermostat is malfunctioning along with engine temperature coolant sensor. This causes the temperature gauge on the dashboard to be completely disabled and not moving off cold, it disables the air conditioner, makes the engine cooling fan to run extremely high nonstop, and places the vehicle into an unpredictable ...
Engine - filed 2026-10-01
The radiator and thermostat on my 2020 Blazer had to be replaced at less than 35,000 miles. It was out of warranty and the Chevy dealer charged me $3,500 to replace them. Internet sources state that this is a common problem with this car. I complained to Chevy corporate and they refunded $1,000. I do not feel this was...
Steering - filed 2026-09-21
Power steering went out while driving making it impossible to steer.
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More for the 2020 Chevrolet Blazer
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.