NHTSA Complaint #11713060 — 2023 GMC SIERRA 2500

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11713060
Vehicle	2023 GMC SIERRA 2500
Component	POWER TRAIN
Date of Incident	November 22, 2025
Date Filed	January 24, 2026
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	PA

Consumer Description

Driving at approximately 30-35MPH merging in traffic, the transmission shuttered and went into reduced power mode. ECM reported a 747 code and valve body failure.

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