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What 73 owners told NHTSA about the 2020 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.
1 of 73 complaints match · Engine · crash/fire/injury only · clear filters
May 20, 2020EngineFire
TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING, HE NOTICED SMOKE ENTERING THE VEHICLE THROUGH THE AIR VENTS. THE CONTACT COASTED TO THE SIDE OF THE ROAD, EXITED THE VEHICLE SAFELY WITH HIS PASSENGER, UPON OPENING THE HOOD NOTICED THAT THE WHOLE ENGINE COMPARTMENT WAS ON FIRE. THE CONTACT STATED THAT THE FIRE DEPARTMENT ARRIVED BUT WAS UNABLE TO EXTINGUISH THE FLAMES AS THEY ALLOWED THE VEHICLE TO BURN UNTIL THE FIRE SELF EXTINGUISHED. THE DEALER NOR THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 2,800. VIN WAS NOT AVAILABLE.
NHTSA ODI 11325262
Working with the data? Download all 73 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 2020 GMC Sierra 2500 Hd verdict →