2019 Chevrolet Blazer electrical system problems
59 owner complaints filed with NHTSA name the electrical system on the 2019 Chevrolet Blazer — 32% of all complaints for this model year.
What owners report
“Electronically controlled thermostat and sensor fail or get stuck at a much lower coolant temperature causing the dash to display the “steering assist is reduced drive with care.” It isn’t just a message, the steering is much harder to use potentially causing an accident. The ac completely doesn’t…”
filed May 25, 2026
“Shift to Park issue: Known issue where the car fails to recognize it is in Park, preventing it from shutting off. Electronics: Potential blanked-out display screens, USB port issues, and malfunctioning cameras. Steering Assist: Restricted, temperature gauge goes to cold and radiator fan blows hard…”
filed Apr 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Blazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Blazer | 7 | 27% |
| 2024 Blazer | 7 | 17% |
| 2023 Blazer | 6 | 15% |
| 2022 Blazer | 11 | 26% |
| 2021 Blazer | 37 | 30% |
| 2020 Blazer | 71 | 34% |
| 2006 Blazer | 2 | 11% |
| 2004 Blazer | 10 | 20% |
| 2003 Blazer | 9 | 12% |
| 2002 Blazer | 21 | 9% |
| 2001 Blazer | 40 | 12% |
| 2000 Blazer | 49 | 8% |
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.