NHTSA Complaint #11681851 — 2015 GMC SIERRA 1500 ENGINE

Complaint Details

ODI Number	11681851
Vehicle	2015 GMC SIERRA 1500
Component	ENGINE
Date of Incident	August 14, 2025
Date Filed	August 20, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

I have owned 4 of these trucks in my lifetime ranging from 2007-2015 all equipped with the same drivetrain. 5.3l engine and 6l80 transmissions. All have had the same failures. The engine afm system particularly the lifters fail which in turn destroys the camshaft and destroys the engine. More importantly the transmission torque converter fails sending debris through the whole system causing a sudden loss of drive. This happened while driving down the road and was a safety concern for myself and others. This time it costed me $6500 to replace the transmission. All of the trucks I have owned experianced the same failures how is this not a problem?

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