2015 GMC Sierra 2500 fuel/propulsion system problems
10 owner complaints filed with NHTSA name the fuel/propulsion system on the 2015 GMC Sierra 2500 — 11% of all complaints for this model year.
What owners report
“Truck has a CP4 injection pump and they go bad and cost $15,000-$20,000 to repair and if that happens I owe money on the truck and would have to get a loan or figure something out and still have to make a payment on something I can’t even drive! They need to recall it and swap them out to a CP3 and…”
filed Nov 21, 2023
“While driving down the highway at 60 mph, the truck stumbled then completely died. After coasting to a stop truck would not restart. Towed to a repair shop to find out the Bosch CP 4 fuel pump exploded and contaminated the whole fuel system with metal shavings. A very expensive and lengthy repair…”
filed Jul 12, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Sierra 2500 years
| Year | Reports | Share |
|---|---|---|
| 2025 Sierra 2500 | 1 | 4% |
| 2024 Sierra 2500 | 3 | 3% |
| 2022 Sierra 2500 | 3 | 7% |
| 2021 Sierra 2500 | 2 | 4% |
| 2020 Sierra 2500 | 1 | 1% |
| 2019 Sierra 2500 | 2 | 6% |
| 2018 Sierra 2500 | 5 | 14% |
| 2017 Sierra 2500 | 2 | 5% |
| 2016 Sierra 2500 | 10 | 17% |
| 2014 Sierra 2500 | 3 | 10% |
| 2013 Sierra 2500 | 7 | 15% |
| 2012 Sierra 2500 | 5 | 17% |
Other reported problem areas on the 2015 GMC Sierra 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.