2015 Chevrolet Silverado 2500 engine problems
12 owner complaints filed with NHTSA name the engine on the 2015 Chevrolet Silverado 2500 — 7% of all complaints for this model year.
What owners report
“My pickup truck has a Duramax diesel engine with a CP4 diesel injection pump. That pump has not failed yet in my truck. However it has been known to fail in numerous other GM vehicles with Duramax engines and when it does fail the engine comes to a complete stop and cannot be restarted. This is a…”
filed Jan 10, 2026
“The fuel injection pump malfunctioned causing the truck to shut down going down the highway. It was taken to a professional and was confirmed to be an issue with these vehicles. There was no warnings at all. The cost to repair was $8000.00”
filed Aug 13, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Silverado 2500 years
| Year | Reports | Share |
|---|---|---|
| 2025 Silverado 2500 | 5 | 23% |
| 2024 Silverado 2500 | 13 | 9% |
| 2023 Silverado 2500 | 7 | 16% |
| 2022 Silverado 2500 | 5 | 6% |
| 2021 Silverado 2500 | 7 | 8% |
| 2020 Silverado 2500 | 10 | 10% |
| 2019 Silverado 2500 | 19 | 26% |
| 2018 Silverado 2500 | 12 | 23% |
| 2017 Silverado 2500 | 12 | 22% |
| 2016 Silverado 2500 | 8 | 7% |
| 2014 Silverado 2500 | 7 | 18% |
| 2013 Silverado 2500 | 6 | 12% |
Other reported problem areas on the 2015 Chevrolet Silverado 2500
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.