2021 Chevrolet Silverado 1500 engine problems
372 owner complaints filed with NHTSA name the engine on the 2021 Chevrolet Silverado 1500 — 46% of all complaints for this model year.
What owners report
“LM2 engine coolant control valve failure. My vehicle VIN is not listed for the repair i dont know how it is not but they want me to pay outa pocket”
filed Sep 12, 2026
“Statement for NHTSA Subject: Safety Complaint – 2021 Chevrolet Silverado Unexpected Jerking/Harsh Transmission Engagement I am submitting this complaint regarding my 2021 Chevrolet Silverado 1500 2.7L Turbo with approximately 128,000 miles. My vehicle has developed a recurring problem involving…”
filed Sep 10, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Connecting rod and/or crankshaft engine components may have manufacturing defects that…Campaign 25V274000 · Apr 24, 2025
Engine problems in other Silverado 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Silverado 1500 | 55 | 59% |
| 2025 Silverado 1500 | 51 | 52% |
| 2024 Silverado 1500 | 146 | 48% |
| 2023 Silverado 1500 | 145 | 39% |
| 2022 Silverado 1500 | 243 | 39% |
| 2020 Silverado 1500 | 242 | 33% |
| 2019 Silverado 1500 | 365 | 34% |
| 2018 Silverado 1500 | 101 | 20% |
| 2017 Silverado 1500 | 114 | 16% |
| 2016 Silverado 1500 | 72 | 9% |
| 2015 Silverado 1500 | 131 | 12% |
| 2014 Silverado 1500 | 191 | 13% |
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.