2021 Chevrolet Blazer fuel/propulsion system problems
16 owner complaints filed with NHTSA name the fuel/propulsion system on the 2021 Chevrolet Blazer — 13% of all complaints for this model year.
What owners report
“fuel pump control module failed at 26000. recall number N252516900. This is a recall that other 2021 blazers have ben part of. Over 300000 recalls so far. GM says my car isn't. Ridiculous. They dont want to acknowledge their fault. I need a formal statement that this module should be recalled for…”
filed Jul 9, 2026
“XXX the car had gas, turned over, but would not start. I had it towed to a repair center who towed, did diagnostics and came up with the codes for a bad fuel pump control module. It was replaced and the car starts. There was no warning. Problem was confirmed by an independent service center. All…”
filed Jul 9, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur…
N252516900-01 · Emissions · issued Feb 19, 2026
Fuel/propulsion System problems in other Blazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Blazer | 1 | 4% |
| 2024 Blazer | 3 | 7% |
| 2023 Blazer | 3 | 8% |
| 2022 Blazer | 6 | 14% |
| 2020 Blazer | 4 | 2% |
| 2019 Blazer | 2 | 1% |
| 2006 Blazer | 2 | 11% |
| 2003 Blazer | 2 | 3% |
| 2002 Blazer | 6 | 2% |
| 2001 Blazer | 2 | 1% |
| 2000 Blazer | 3 | 1% |
| 1998 Blazer | 1 | 0% |
Other reported problem areas on the 2021 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.