2015 GMC Yukon Denali XL exterior lighting problems
36 owner complaints filed with NHTSA name the exterior lighting on the 2015 GMC Yukon Denali XL — 55% of all complaints for this model year.
What owners report
“The contact owns a 2015 GMC Yukon Denali XL. The contact stated that the passenger’s side taillight failed to illuminate intermittently while depressing the brake pedal. Over time, the driver’s side taillight also would fail to illuminate with the brake pedal depressed. The contact then received a…”
filed Jul 28, 2021
“The passenger side taillight started 'going out' right after the warranty expired-meaning, it would work off and on at various times. Then the drivers side taillight has started doing the same thing. This is a known issue with the gmc taillights and yet gmc has yet to recognize any issue. This is a…”
filed Jun 26, 2019
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Exterior Lighting problems in other Yukon Denali XL years
| Year | Reports | Share |
|---|---|---|
| 2016 Yukon Denali XL | 15 | 52% |
| 2008 Yukon Denali XL | 1 | 2% |
| 2007 Yukon Denali XL | 1 | 2% |
| 2005 Yukon Denali XL | 4 | 12% |
Other reported problem areas on the 2015 GMC Yukon Denali XL
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.