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What 31 owners told NHTSA about the 2019 GMC Sierra 2500 Hd

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (31)Crash / fire / injury (3)Electrical system (8)Engine (5)Brakes (4)Fuel system (3)Fuel System, Diesel (3)Engine & cooling (2)Equipment (2)Lights (2)Tires (2)Transmission & drivetrain (2)

3 of 31 complaints match · Fuel System, Diesel · clear filters

Oct 23, 2025Fuel System, Diesel

The contact owns a 2019 GMC Sierra 2500. The contact stated that while her husband was driving 30 MPH and depressing the accelerator pedal, there was an abnormal sound coming from the front of the vehicle, and the vehicle lost power unexpectedly. The contact stated that her husband was able to pull over to the right side of the road while waiting for tow truck assistance. The vehicle was towed to the residence. The vehicle was not towed an independent mechanic or dealer to be diagnosed. The engine was replaced, and the vehicle was repaired. The contact related the failure to NHTSA Campaign Number: 23V047000 (FUEL SYSTEM, DIESEL); however, the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was 143,000.

NHTSA ODI 11695231

Oct 10, 2024Fuel System, Diesel

The contact owns a 2019 GMC Sierra 2500. The contact stated while driving 10 MPH, the vehicle lost motive power and stalled and shut off independently. The vehicle was towed to a dealer and was diagnosed, and it was determined that the fuel pump control module needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 33,000.

NHTSA ODI 11619152

Sep 15, 2021Fuel System, Diesel

The contact owns a 2019 GMC Sierra 2500. The contact stated while stationary at a traffic light, he started to smell diesel fumes inside the cabin of the vehicle. The contact stated no warning light was illuminated. The contact was able to drive to his residence and while inspecting the vehicle, he noticed a fuel leak located near the engine. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The VIN was associated with NHTSA Campaign Number: 21V496000 (Equipment). The manufacturer had not been informed of the failure. The failure mileage was 25,458.

NHTSA ODI 11433049

Working with the data? Download all 31 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2019 GMC Sierra 2500 Hd verdict →