2015 GMC Sierra 2500 Other or unknown Problems
- Complaints
- 8about this part
- Share
- 9%of 90 total for the year
- Median mileage
- 30,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the other or unknown of the 2015 GMC Sierra 2500, 9% of the 90 complaints for this model year. Where a mileage was given, the median is 30,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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. …”
NHTSA complaint #11189741, filed 2019-03, 12,500 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.”
NHTSA complaint #11180933, filed 2019-02, 97,149 miles“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.”
NHTSA complaint #11230626, filed 2019-07, 30,000 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. …”
NHTSA complaint #10906090, filed 2016-09, 2,500 miles“I have went to a dealership to try and trade this vehicle in and they have informed me that this vehicles odometer has been rolled back prior to me purchasing it. It was not disclosed to me from Bob Rorhman Hyandia that this had happened.”
NHTSA complaint #11713408, filed 2026-01Related service bulletins
- 11037555Sep 26, 2026This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- 11037253Sep 4, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11035340Jul 21, 2026PI to help diagnose A/C concern
- 11035308Jul 21, 2026This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
- 11032777May 14, 2026This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
- 11030974Apr 1, 2026This preliminary information communicates information about how to determine if a wheel and tires size change is available.
- 11030092Mar 9, 2026This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- 11030091Mar 9, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11028931Feb 16, 2026This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire…
- 11028700Feb 5, 2026This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL along with several low speed lan DTCs.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 7% |
| 2025 | 6 | 21% |
| 2024 | 13 | 12% |
| 2023 | 2 | 6% |
| 2022 | 6 | 13% |
| 2021 | 3 | 6% |
| 2020 | 18 | 23% |
| 2019 | 2 | 6% |
| 2018 | 5 | 14% |
| 2017 | 6 | 16% |
| 2016 | 7 | 12% |
| 2015 | 8 | 9% |
| 2014 | 7 | 23% |
| 2013 | 14 | 30% |
| 2012 | 7 | 23% |
| 2011 | 9 | 14% |
| 2010 | 4 | 40% |
| 2009 | 2 | 6% |
| 2008 | 9 | 14% |
| 2007 | 9 | 11% |
| 2005 | 3 | 3% |
| 2003 | 2 | 1% |
| 2002 | 3 | 2% |
| 2001 | 5 | 4% |
| 2000 | 1 | 2% |
Other parts of the 2015 GMC Sierra 2500
26 complaintsFuel system
12 complaintsElectrical system
11 complaintsTransmission and drivetrain
8 complaintsEngine
7 complaintsBrakes
6 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsSteering
4 complaintsAir bags
3 complaintsSeat belts
3 complaintsWheels
3 complaintsSuspension
2 complaints
← All problems reported for the 2015 GMC Sierra 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology