2015 Chevrolet Silverado 2500 Engine Problems

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 potentially hazardous even fatal situation. Repair if the pump fails is very expensive - $12,000 to $14,000 in some cases. I would like GM to replace the injection pump at my dealership to ensure this known failure does not occur. My pickup truck is otherwise in excellent condition.

NHTSA ID

11710097

Incident

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

NHTSA ID

11538201

Incident

Jun 21, 2021

Fuel pump failure while driving highway speed 70mph pulling a trailer. Engine light came on and engine went to limp mode for a few seconds then completely shut down without warning while still going at least 60. Lost power steering and power brakes. Service center confirmed the code for "low fuel rail pressure" and did the repair. I have retained the CP4 pump for analysis. I was very lucky to not crash my truck.

NHTSA ID

11510394

Incident

Aug 7, 2022

The contact owns a 2015 Chevrolet Silverado 2500. The contact stated that while driving at various speeds, the vehicle entered LIMP Mode with a warning message indicating how many miles before the vehicle would independently turn off. The contact had taken the vehicle to a dealer and was informed that the diesel exhaust fluid (DEF) tank needed to be replaced; however, the failure returned. Over time, the rear brakes, rotors, calipers, and various other parts had been replaced; however, the repairs failed to fix the vehicle. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 143,000.

NHTSA ID

11506908

Incident

Feb 1, 2022

Mileage

143,000 mi

When engine is cold you can smell exhaust fumes . Studs in engine are broke. smelling fumes is not a safety issue ? One other thing the battery distribution block was bad and GM knows its bad, they built a new . The truck shuts off wile driving, or does not start till you hit it with a hammer.

NHTSA ID

11452671

Incident

Oct 12, 2019

The crank shaft broke at 130k miles and this becoming common to this year and model. The mechanic who has the same truck could not fathom this catastrophic failure at such a early life in this truck. This repair is estimated at 5,000.00-10,000.00 and if this does not work the durmax diesel motor will have to be replaced.

NHTSA ID

11440868

Incident

Oct 22, 2021

The contact owns a 2015 Chevrolet Silverado 2500. The contact stated while driving 70 mph, the vehicle loss motive power and stalled and shifted into reduced power mode. The contact had the vehicle towed to the local dealer who inspected the vehicle and diagnosed the vehicle was a Diesel Exhaust Fluid build-up which caused an extreme burn in the exhaust fluid. The dealer replaced the DEF system and exhaust lines to fix the vehicle however, the failure persisted. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 280,000.

NHTSA ID

11424641

Incident

Mar 2, 2017

Mileage

280,000 mi

THE CHEVY AC COMPRESSOR BOLT BROKE BEFORE 48K MILES WHILE DRIVING ON A PAVED CITY STREET IN SAN DIEGO. THIS FAILURE CAUSED THE CONDENSER TO ALSO FAIL AND BOTH PARTS HAVE TO BE REPLACED. THE TOTAL BILL FOR REPAIRS IS $2,150.31 AND THE COPY OF THE INVOICES IS SUBMITTED (EXCLUDE THE FUEL FILTER REPLACEMENT COSTS AS THAT WAS REGULAR MAINTENANCE WORK). THE AC COMPRESSOR FAILURE IS CAUSED BY CHEAP PARTS AND IS A COMMON PROBLEM FOR ALL GM PRODUCTS BEFORE 100K MILES. THIS SHOULD BE A RECALL ITEM AS IT IS A SAFETY RISK IF THE FAILURE RESULT IN A VEHICLE FIRE OR DRIVE BELT FAILURE (STRANDED VEHICLE) OR A LOSS OF FOCUS WHILE DRIVING.

NHTSA ID

11232487

Incident

Jul 11, 2019

Mileage

47,500 mi

MY DEF TANK HEATER WENT OUT SO PUTS CHECK ENGINE LIGHT ON. WAS TOLD BY DEALERSHIP IT WAS FINE TO DRIVE WHILE PARTS WERE ORDERED. SAID WOULD A FEW WEEKS SINCE 200,000 WAS ON BACK ORDER. HAVE HAD THREE FRIEND WITH SAME ISSUE SAME YEAR MODEL GM ONE WAS GMC OTHER TWO WAS CHEVROLET

NHTSA ID

11221213

Incident

Mar 21, 2019

TRUCK WAS PARKED AND TURNED OFF, A FIRE STARTED UNDER HOOD CAUSING DAMAGE TO ENGINE COMPARTMENT, USAA INSURANCE NOTIFIED, TRUCK TAKEN TO MASTER GMC IN AUGUSTA GA, AROUND 40,000 MILES AND ALL STOCK NO MODIFICATIONS MADE

NHTSA ID

11182862

Incident

Feb 23, 2019

Mileage

40,000 mi

THERE DEFINITELY A PROBLEM WITH THE DEF & EMISSION SENSORS ON GM'S DURAMAX ENGINES. 4TH TIME ENGINE UNEXPECTEDLY REDUCES ENGINE POWER WHILE TRAVELING AT HIGHWAY SPEEDS. RESULTS IN SUDDEN SPEED REDUCTION WHICH IS EXTREMELY DANGEROUS IN ALMOST ANY DRIVING ENVIRONMENT. THESE "REDUCED ENGINE POWER" MODES RELATED TO MONITORING DIESEL EMISSIONS WILL GET SOMEONE INJURED OR KILLED (IF IT HASN'T ALREADY)

NHTSA ID

11048611

Incident

Nov 26, 2017

Mileage

117,000 mi

I BOUGHT THIS TRUCK BRAND NEW. I STARTED HAVING PROBLEMS ABOUT 2000 MI. THE TRUCK HAS A MISS AND JERKS UNDER LOAD. IT HAS BEEN TO THE DEALER TWICE AND THEY TELL ME THE COMPUTER DOESN'T SHOW ANY TROUBLE CODES SO THERE IS NOTHING THEY CAN DO. ALSO ON OCCASION THE IGNITION KEY IS HOT TO THE TOUCH. NOW I HAVE TO TAKE IT IN AGAIN BECAUSE THE BRAKE PETAL MIGHT FALL OFF. WHAT A GREAT PRODUCT...GM I THINK BUILDS A LOT OF THESE PROBLEMS IN TO SAVE MONEY WITHOUT A CARE FOR THE CUSTOMER. NOW I HAVE TO DRIVE A $46,000 PIECE OF CRAP THATS BROKEN. OUR HANDS ARE TIED AND AT THE MERCY OF BIG BUSINESS. HOPE YOU CAN HELP. STEVE

NHTSA ID

10825714

Incident

Nov 15, 2014

Mileage

2,000 mi