2021 Chevrolet Silverado 1500 electrical system problems
111 owner complaints filed with NHTSA name the electrical system on the 2021 Chevrolet Silverado 1500 — 14% of all complaints for this model year.
What owners report
“My 2021 Chevrolet Silverado 1500 RST with the 6.2L engine experienced an engine seizure. The engine was replaced by a Chevrolet dealership under a GM safety recall. Immediately after picking up the vehicle following the recall engine replacement, the truck stalled while still in the Chevrolet…”
filed Sep 9, 2026
“The automatic power-unlatching tailgate assembly failed. The tailgate unlatches, opens, and cycles closed completely on its own while the vehicle is in motion and driving on public roads and when the gear shifts from drive to park and park to drive. The vehicle and the tailgate assembly are fully…”
filed Sep 5, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Silverado 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Silverado 1500 | 16 | 17% |
| 2025 Silverado 1500 | 24 | 24% |
| 2024 Silverado 1500 | 41 | 13% |
| 2023 Silverado 1500 | 61 | 16% |
| 2022 Silverado 1500 | 134 | 22% |
| 2020 Silverado 1500 | 113 | 16% |
| 2019 Silverado 1500 | 188 | 17% |
| 2018 Silverado 1500 | 101 | 20% |
| 2017 Silverado 1500 | 123 | 17% |
| 2016 Silverado 1500 | 119 | 15% |
| 2015 Silverado 1500 | 163 | 15% |
| 2014 Silverado 1500 | 341 | 24% |
Other reported problem areas on the 2021 Chevrolet Silverado 1500
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.