really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
12,250 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 GMC Sierra 2500 drivetrain problems

drivetrain problem

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2015 GMC Sierra 2500 Owner Comments

problem #2

Mar 152016

Sierra 2500

  • 2,500 miles


While driving on dry pavement, driver moved knob on vehicle to switch from AWD to 2wd. Vehicle went into an immediate spin which could not be corrected. (or maybe it was because of what happened next). Vehicle careened over two lanes ("presumably" would not stop - driver does not recall trying to hit the brakes repeatedly or at all as the "next problem" was in front of driver and driver was focusing on survival).. driver quickly smashed through metal safety barrier and crashed through trees over a 30 ft embankment into a reservoir. Driver able to open roof while "steering" with left hand and opening roof with right hand as driver knew water was fast approaching. Driver smashed through trees, truck was demolished but driver was able to make it out of car alive as car took on water through opened roof. VIN number reports brake issues. Driver not aware of "brake recall" or any issues and did not report brake issue as an issue on scene as incident happened so fast and driver was attempting to stay alive and was ever focused on the next 'obstacle" as it was in the way per description herein. Airbags deployed as expected and driver exited water-filled vehicle via opened roof unharmed. GMC sent investigators out but no report has been issued to driver. Chubb lead investigator accompanied the GMC investigator and reported "no vehicle malfunction". after this incident, and reading others' problems, driver is now not convinced of that report.. no mention of brake recall seems to have been reported by anyone but by putting VIN number into this database.

- North Salem, NY, USA

problem #1

Jan 282016

Sierra 2500

  • 22,000 miles
Transmission control module failure; the truck at 45 mph developed a complete loss of all gauges(tach, speed, fuel, temp) and then 10-15 seconds later two loud noises followed by the vehicle coming to a rapid deceleration. This resulted in the wheels locking up and sliding sidewise. The truck rolled up on to its left two wheels and then slammed down. If this occurred at 75mph on the highway, the truck would have rolled. The truck has been at a GMC dealership since then. GMC has no date of if or when this truck can be repaired. The "tcm" is defective. It was on a city street, 45 mph zone going straight down a gentle grade.

- Billings, MT, USA

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