NHTSA Complaint #11658592 — 2021 GMC SIERRA 1500

POWER TRAIN issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11658592
Vehicle	2021 GMC SIERRA 1500
Component	POWER TRAIN
Date of Incident	April 12, 2025
Date Filed	May 2, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	CA

Consumer Description

Was driving vehicle on freeway at normal speeds and the vehicle lost propulsion. Engine was off and vehicle said to shift to neutral and restart. I was able to exit the freeway safely (barely) to the median. Vehicle would not restart. It has the L87 engine which is under recall. Vehicle is at dealership submitted under the recall. I am being told there is "no remedy" and "no parts" and given no timeframe for any fix to be completed. I am still liable for the payments, insurance and this is our only vehicle in a single father of three family.

Related Complaints for the 2021 GMC SIERRA 1500

Other POWER TRAIN Complaints

#11719556 — February 21, 2026 — I was driving on a highway on my way home from work. Thank god there was not a lot of traffic because my truck just s...

#11718623 — February 17, 2026 — I have had shuddering on the highway and a few hard random diwnshifts. Last week I went to start my truck and the tra...

#11716982 — February 10, 2026 — The engine has been burning oil since purchased but really highlighted when at 47k miles I got a dashboard message sa...

#11713162 — January 25, 2026 — 4 months after bring my truck back to the dealership for a body valve issue on the 10 speed transmission. The truck w...

#11712819 — January 22, 2026 — On the afternoon of 01/20/26, I was merging onto the highway in my 2021 GMC Sierra 1500 when a loud bang was heard fr...

Recent Complaints for the 2021 GMC SIERRA 1500

#11719556 — BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING — February 21, 2026 — I was driving on a highway on my way home from work. Thank god there was not a lot of traffic because my truck just s...

#11719556 — ENGINE — February 21, 2026 — I was driving on a highway on my way home from work. Thank god there was not a lot of traffic because my truck just s...

#11719314 — ENGINE AND ENGINE COOLING — February 20, 2026 — The contact owns a 2021 GMC Sierra 1500. The contact stated that while operating the vehicle, the check engine warnin...

#11718970 — ENGINE — February 18, 2026 — The failed component is the engine coolant control valve on a 3.0L Duramax truck. The failure has been documented and...

#11717579 — ENGINE — February 12, 2026 — Had a P1098 code. The truck was diagnosed by a certified technician. Found to have a failing coolant control valve....