2015 GMC Yukon Denali Electrical system Problems
- Complaints
- 11about this part
- Share
- 15%of 73 total for the year
- Median mileage
- 64,000miles
- 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 Yukon Denali, 15% of the 73 complaints for this model year. Where a mileage was given, the median is 64,000 miles.
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.
“The rear LED tailight goes in and out, while driving the car. The dealer will not fix the problem unless the light is not working, but because it is intermittent, we cannot get it to fail at the dealership. We have had this problem for 2 years and it is a safety issue as the tail light will not work.”
NHTSA complaint #11123163, filed 2018-08, 50,000 miles“Tail lights sometimes work and most of the time does not work. I see hundreds of complaints about this and nothing is being done about it! This will be my first and last time buying a Gmc car. This is very dangerous and a very expensive problem to have!”
NHTSA complaint #11302141, filed 2020-01, 60,000 miles“The left brake light failed with 57k miles. The right one then failed at 61k miles. The dealer wanted $735 each to fix them, as they claim they need to replace the entire LED housing. The dealer is well-aware that this is a common problem, and it would appear based on googling the issue that many others have experienced this failure from GM.”
NHTSA complaint #11228279, filed 2019-06, 60,000 miles“The passenger side tail light is intermittent the dealer said that it would cost $875.00 for the part to fix. He said that it was a bad manufacturing job. And he also said that there were a lot of SUV's coming in with the same problem. Thank you”
NHTSA complaint #11191686, filed 2019-03, 77,254 miles“Drivers and passenger brake light go out intermittently. Passenger stays off for long periods of time. Looked into replacing no idea if it will fix the problem. Cost at least $500. Each parts only. I have seen so many other vehicles like mine same problem. Headlights also going out, water inside of cover. Led and turn signal went out on drivers side replaced for a cost of $900.00, (just for the headlight) again no guarantee it will keep working. Also battery went dead replaced battery. New battery also went dead. Car alarm went off the night before battery dead in the morning. …”
NHTSA complaint #11132402, filed 2018-09, 41,000 milesRelated 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.
- 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.
- 11006621Aug 26, 2024Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 1 | 8% |
| 2016 | 3 | 17% |
| 2015 | 11 | 15% |
| 2012 | 2 | 7% |
| 2011 | 2 | 2% |
| 2009 | 3 | 7% |
| 2008 | 7 | 12% |
| 2007 | 16 | 13% |
| 2006 | 1 | 5% |
| 2005 | 19 | 39% |
| 2004 | 57 | 52% |
| 2003 | 25 | 35% |
| 2002 | 3 | 10% |
| 2001 | 2 | 6% |
| 2000 | 3 | 17% |
| 1999 | 3 | 11% |
Other parts of the 2015 GMC Yukon Denali
39 complaintsOther or unknown
9 complaintsTransmission and drivetrain
8 complaintsBrakes
5 complaintsEngine
4 complaintsSteering
4 complaintsSuspension
4 complaintsEngine cooling
1 complaintsFuel system
1 complaintsBody and structure
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2015 GMC Yukon Denali
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