NHTSA Complaint #11706659 — 2021 GMC SIERRA 1500

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11706659
Vehicle	2021 GMC SIERRA 1500
Component	POWER TRAIN
Date of Incident	December 13, 2025
Date Filed	December 22, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NY

Consumer Description

Transmission valvebody failure, causing rapid, repeated rear wheel lock ups. Videos can be provided. These happen almost daily at highway speeds. This will cause a very bad accident

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