NHTSA Complaint #11637242 — 2020 GMC SIERRA 1500
ENGINE issue reported to NHTSA
Complaint Details
| ODI Number | 11637242 |
| Vehicle | 2020 GMC SIERRA 1500 |
| Component | ENGINE |
| Date of Incident | |
| Date Filed | |
| Mileage | N/A miles |
| Crash | No |
| Fire | No |
| Injuries | 0 |
| Deaths | 0 |
| Vehicle Towed | No |
| State | MI |
Consumer Description
I had Engine Failure in June 2024 with roughly 50,000 miles. I was getting on I75 North in Auburn Hills, MI, when I heard a loud pop. The vehicle began shaking violently with a loss of engine power warning displayed, loss of oil pressure displayed followed by 2 successive limp mode warning. The vehicle would not drive over 25 MPH. Luckily the next exit was only a mile down the road. I was able to drive on the shoulder of the Interstate to get off of the highway. When I parked the vehicle shortly after, I viewed oil spewed all over the engine bay and under the truck. I then waited 4 hours in 95+ heat for a tow truck. The engine was replaced by the dealer with no root cause identified or communicated to me. There were no warning prior to this failure. The vehicle has had over 13 warranty related issues including the DEF heater melting, CAC pump failure, Numerous Exhaust Leaks, NOX and EGR sensors failing, brake control module faults etc.
Related Complaints for the 2020 GMC SIERRA 1500
Other ENGINE Complaints
#11719463
The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, there was a l...
#11719037
I had a complete engine failure that I had to pay out-of-pocket for I really think that this vehicle should’ve been i...
#11718471
My engine is projecting a ticking sound. Oil consumption is extreme.
#11718207
Engine failure as related to RQ26-001. engine misfires after following recommended maintenance schedule for 6.2L eng...
#11718047
Catastrophic engine failure at 62,445 miles. Dealer state excessive oil in cylinder 7, ring failure. Recommendations;...
Recent Complaints for the 2020 GMC SIERRA 1500
#11719518
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The brakes suddenly activate and cause the vehicle to rapidly stop with no warning of any kind and without any brakin...
#11719423
POWER TRAIN
On Friday, January 30, 2026 while driving our 2020 GMC Sierra 1500, we experienced sudden loss of power and the motor...
#11719487
POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle u...
#11719518
SERVICE BRAKES
The brakes suddenly activate and cause the vehicle to rapidly stop with no warning of any kind and without any brakin...