2019 Chevrolet Blazer engine problems
40 owner complaints filed with NHTSA name the engine on the 2019 Chevrolet Blazer — 22% of all complaints for this model year.
What owners report
“Just had to replace a radiator that was leaking all across the top. Also have gotten the steering assist warning for thermostat and temperature sensor. Seems to be cery common problems rhat gm ahould fix”
filed Aug 27, 2026
“Thermostat went bad at 47,500 miles. Temp gauge stopped working, Engine light came on and alert stating steering assist is reduced”
filed Aug 18, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Blazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Blazer | 3 | 10% |
| 2024 Blazer | 6 | 13% |
| 2023 Blazer | 12 | 29% |
| 2022 Blazer | 13 | 27% |
| 2021 Blazer | 41 | 31% |
| 2020 Blazer | 68 | 31% |
| 2006 Blazer | 2 | 11% |
| 2002 Blazer | 3 | 1% |
| 2000 Blazer | 1 | 0% |
| 1999 Blazer | 2 | 0% |
| 1998 Blazer | 2 | 0% |
| 1996 Blazer | 1 | 0% |
Other reported problem areas on the 2019 Chevrolet Blazer
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.