NHTSA Complaint #11692390 — 2018 GMC YUKON

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11692390
Vehicle	2018 GMC YUKON
Component	POWER TRAIN
Date of Incident	June 2, 2025
Date Filed	October 9, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MD

Consumer Description

Dealership did a tune-up in June 2025 and had my truck for 2 weeks, no issues with transmission discovered or discussed. Now in September 2025, 2018 GMC Yukon has developed a torque converter shutter when driving between 40 and 50 mph. I took the vehicle to an independent shop who told me they had some computer tool to manually control the transmission, and there is an internal failure. There was a transmission flush completed hoping to gain results, however it was very short lived.

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