2015 GMC Sierra 2500 Electrical system Problems
- Complaints
- 11about this part
- Share
- 12%of 89 total for the year
- Median mileage
- 115,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the electrical system of the 2015 GMC Sierra 2500, 12% of the 89 complaints for this model year. Where a mileage was given, the median is 115,000 miles. 3 a fire, 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.
“On 5/12/19 the check battery charging system light came on, so I left out side facing street in case I had to jump to take to dealer on monday. I went in the house and 1/2 hour later heard and explosion and went out and the truck engine compartment was on fire.”
NHTSA complaint #11207167, filed 2019-05, 60,194 miles“Odometer Fraud. The contact purchased a 2015 GMC Sierra 2500. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 189,458 and the contact stated he discovered on Carfax that mileage was 188,052; however, the contact discovered that the mileage was 112,708.”
NHTSA complaint #11713486, filed 2026-01, 189,458 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“Water intrusion from antenna ran down into my wires causing corrosion in my electrical harness. Truck will throw code p2138 and go into reduced power mode. Very dangerous when you are in traffic. Truck will not go over 15mph when this happens. This has been a problem intermittently since I have owned the truck at 119000 miles . Gotten progressively worse.”
NHTSA complaint #11490387, filed 2022-10“The display of the intellink system acts erratic and eventually freezes up. It happens in all modes ( map, radio, phone, ….). The only way to reset is shut the truck off. GMC knows of the problem but their only solution is replace the radio and or replace the touch panel. This can be a safety issue but I take my eyes off the road to try and get the display to work.”
NHTSA complaint #11420961, filed 2021-06Related service bulletins
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012929Jan 7, 2025This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 11012027Dec 18, 2024This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery…
- 11011805Dec 6, 2024This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
- 11010421Oct 3, 2024This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 38% |
| 2025 | 1 | 4% |
| 2024 | 33 | 31% |
| 2023 | 6 | 18% |
| 2022 | 12 | 27% |
| 2021 | 6 | 12% |
| 2020 | 13 | 16% |
| 2019 | 9 | 28% |
| 2018 | 7 | 20% |
| 2017 | 6 | 16% |
| 2016 | 9 | 15% |
| 2015 | 11 | 12% |
| 2014 | 4 | 13% |
| 2013 | 3 | 7% |
| 2012 | 4 | 13% |
| 2011 | 9 | 14% |
| 2009 | 7 | 23% |
| 2008 | 3 | 5% |
| 2007 | 5 | 6% |
| 2006 | 4 | 6% |
| 2005 | 42 | 37% |
| 2004 | 48 | 34% |
| 2003 | 36 | 23% |
| 2002 | 1 | 1% |
| 2001 | 4 | 3% |
| 2000 | 3 | 6% |
| 1999 | 2 | 6% |
| 1998 | 1 | 7% |
Other parts of the 2015 GMC Sierra 2500
26 complaintsFuel system
12 complaintsOther or unknown
8 complaintsTransmission and drivetrain
8 complaintsEngine
7 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsBrakes
5 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 30, 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