2018 GMC Sierra 2500 Power Train
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
2018 GMC SIERRA 2500. CONSUMER WRITES IN REGARD TO TRANSMISSION COOLER LINES RECALL. THE CONSUMER STATED THE VEHICLE BEGAN LEAKING FLUID. THE VEHICLE WAS TAKEN TO THE DEALER TO HAVE THE VEHICLE REPAIRE, WHICH COULD NOT BE DONE THE SAME DAY. THE CONSUMER WAS SEEKING REIMBURSEMENT FOR THE HOTEL EXPENSE, SINCE THE CONSUMER WAS TRAVELING OUT OF STATE WHEN THE FAILURE OCCURED.
WHILE TRYING TO MERGE ONTO THE INSTERSTATE MY TRUCK STARTED LOST POWER AND STARTED TO CHUG. MY TRUCK SLOWED DRASTICALLY WHICH CAUSED A TRACTOR/TRAILER TO ALMOST RUN INTO THE BACK OF ME. THIS HAS BEEN AN ONGOING ISSUE THAT MY DEALERSHIP HAS ADDRESSED BY REFLASHING MY COMPUTER. TO MY KNOWLEDGE THE FIRST FLASH WAS FOR THE TRANSMISSION AND THE SECOND TIME WAS FOR THE FUEL INJECTORS. THE REPROGRAMMING HAS NOT FIXED THE ISSUE. I WAS TRYING TO MERGE WITH TRAFFIC ON I 80 IN UTAH
TRUCK BEGAN ROLLING DOWNHILL WHILE THE VEHICLE WAS IN PARK WITH THE KEYS OUT OF TGE IGNITION. I WAS REMOVING A CHILD SEAT FROM THE PASSENGER SIDE REAR SEAT AT THE TIME. SPOUSE WAS ABLE TO HURRIEDLY JUMP INTO THE VEHICLE AND APPLY THE BRAKES.
Trend Over Time
Complaints by year
Other Issues
Common problems reported
Quick Summary
The 2018 GMC Sierra 2500 has 3 Power Train complaints on file. Review the timeline above for detailed owner experiences.