10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
48,500 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 miscellaneous problems

miscellaneous problem

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2015 GMC Sierra 2500 Owner Comments

problem #5

May 102018

Sierra 2500

  • 30,000 miles

A D V E R T I S E M E N T S

The undercoating on the frame is coming off. The frame is already rusting. How long will it be before the frame rusts through ? I talked to another person with the same truck and he is having the same problem.

- Cokeburg, PA, USA

problem #4

Mar 042019

Sierra 2500

  • 12,500 miles
This truck has had problems with water getting into it during heavy rain since bought new. It seems to occur at the front door area near the windshield. When the truck is outside in the rain, there will be water soaking all the floor boards. This has led to stinking issues and mold/mildew. They have refused to fix it because it hasn't been recalled. It has been getting worse and the last very heavy downpour we had, the floorboards and windshield were frozen. This is a $60,000 plus truck. This is ridiculous that we have to keep it covered or in a carport for fear of water seeping into it. The vehicle is parked in heavy rain when this happens.

- Ft Payne, AL, USA

problem #3

Feb 182019

Sierra 2500

  • 97,149 miles
Water steadily dripping through the sun visor bar that mounts to interior of roof on the drivers side when raining/snowing today. Does not matter if your driving or sitting still. Electrical wires run through this bar posing a fire hazard. GM refuses to fix even though truck is under warranty. I have video evidence.

- Lapeer, MI, USA

problem #2

Jul 142018

Sierra 2500

  • 100,350 miles
The air conditioner quit 350 miles over the warranty period.

- Bothell, WA, USA

problem #1

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

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