NHTSA Complaint #11693972 — 2026 GMC SIERRA 1500
ENGINE issue reported to NHTSA
Complaint Details
| ODI Number | 11693972 |
| Vehicle | 2026 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 | KY |
Consumer Description
I do not have an official communication from the dealer who is servicing my vehicle. However, they have had my vehicle for almost 3 weeks and they tell me that the engine has failed and needs complete replacement. They said the engine lost compression and quit running, it now cranks and does not start. Although the engine has not been disassembled we believe the point fo failure to be in the rotating assembly of the bottom end of the engine.
Related Complaints for the 2026 GMC SIERRA 1500
Other ENGINE Complaints
#11719035
Vehicle stalled in busy intersection in McKinney Texas , unable to start are shift into a neutral position on transmi...
#11718072
Odd noise from bell housing area at 1200 miles that went with engine rpm. Took the truck in to the dealer and they sa...
#11716711
The contact owns a 2026 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle m...
#11715890
"Vehicle exhibits a severe RPM flutter and rhythmic harmonic vibration at idle. These symptoms are consistent with ma...
#11713545
Total engine failure at highway speed with loss of propulsion . Catastrophic engine loss with 3,000 miles . GMC never...
Recent Complaints for the 2026 GMC SIERRA 1500
#11719035
ELECTRICAL SYSTEM
Vehicle stalled in busy intersection in McKinney Texas , unable to start are shift into a neutral position on transmi...
#11719035
POWER TRAIN
Vehicle stalled in busy intersection in McKinney Texas , unable to start are shift into a neutral position on transmi...
#11718072
POWER TRAIN
Odd noise from bell housing area at 1200 miles that went with engine rpm. Took the truck in to the dealer and they sa...
#11717546
POWER TRAIN
My 2026 GMC AT4 3.0L Duramax had a catastrophic engine failure on Sunday, February 8, 2026. It went into reduced acce...
#11717655
POWER TRAIN
I am submitting this complaint regarding a recurring transmission issue in my vehicle. The transmission consistently...