NHTSA Complaint #11671999 — 2023 CHEVROLET SILVERADO 2500 POWER TRAIN

Complaint Details

ODI Number	11671999
Vehicle	2023 CHEVROLET SILVERADO 2500
Component	POWER TRAIN
Date of Incident	July 4, 2025
Date Filed	July 8, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	AZ

Consumer Description

Sudden jerk power train and deceleration while driving and towing 5th wheel, immediate loss of power and could have been catastrophic. GM has a known defect that requires immediate attention and investigation to affirm this is a broad national problem with the Allison 10 speed 10L1000 transmission, specifically the defective transmission control valve body assembly. Do we have to wait for multiple family members to be killed or seriously injured due to this known defect? Time for action and resolution. My local dealer tells me this is bigger than anyone knows... why?

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