2022 Chevrolet Blazer electrical system problems
11 owner complaints filed with NHTSA name the electrical system on the 2022 Chevrolet Blazer — 26% of all complaints for this model year.
What owners report
“BROUGHT MY CAR TO CHEVROLET CENTER IN WINTER HAVEN FLORIDA BECAUSE I HAD 2 DIAGNOSTIC CODES SHOW UP WITH A CHECK ENGINE LIGHT, THE CODES WERE (U1345: Indicates a communication fault on the LIN (Local Interconnect Network) Bus, usually tied to modules like the active grille shutters, cooling fans…”
filed Jun 14, 2026
“Car is displaying a “Steering assist is reduced drive with caution” engine light is on and fan continues to run for 5-8 minutes after car is turned off. Was told by a mechanic it is a P0128 code, coolant thermostat. This is the third time it has happened in the last year. Other two times the codes…”
filed Nov 3, 2025
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% |
| 2021 Blazer | 37 | 30% |
| 2020 Blazer | 71 | 34% |
| 2019 Blazer | 59 | 32% |
| 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 2022 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.