NHTSA Complaint #11589260 — 2015 GMC SIERRA 1500

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11589260
Vehicle	2015 GMC SIERRA 1500
Component	POWER TRAIN
Date of Incident	May 17, 2024
Date Filed	May 17, 2024
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MD

Consumer Description

I am on my 4th radiator and 3rd thermostat. August will be 1 year ! 2014 models are covered 2015 (like mine) is not covered. Transmission has shifted like crab since day of purchase 3 years ago. I am told it is a known issue from the factory with no solution. Truck also had a weird tick sense day one which turned into 2 failed valve springs. I have had 2 ball joints FAIL 1st time a month after purchase in my driveway. Second time 2000 miles later same side on my street

Related Complaints for the 2015 GMC SIERRA 1500

Other POWER TRAIN Complaints

#11718679 — February 18, 2026 — During day to day driving when the truck is accelerating from a stopped position there's a massive clunk or hard shif...

#11718485 — February 17, 2026 — Tranmission is shuttering and not wanting to shift right

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#11694238 — October 18, 2025 — The temperature sensor in the transmission is faulty leading to hard/delayed shifting, shuttering, and vibration

#11693701 — October 15, 2025 — Transmission failed at 110k miles roughly. Safety was put at risk due to this happening on a highway. Yes, transmissi...

Recent Complaints for the 2015 GMC SIERRA 1500

#11718801 — SERVICE BRAKES, HYDRAULIC — February 18, 2026 — The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake ped...

#11716665 — UNKNOWN OR OTHER — February 9, 2026 — I remote started my truck. I got in about 5 minutes later. When I shut the door the rear window, passenger side of th...

#11712775 — ENGINE — January 22, 2026 — The engine seized up traveling about 40MPH in the middle lane on a busy road with my child in the passenger seat. I w...

#11703847 — ENGINE — December 8, 2025 — The GMC Sierra 1500 started a knocking sound. The collapsed lifter on a AFM cylinder bent a push rod which led to ca...

#11703418 — STEERING — December 6, 2025 — Loses power steering when vehicle is low speed or stopped. Same details as safety recall 14743 for 2015 gmc sierra.