2015 Gmc Yukon Denali Xl problems, complaints & recalls
Most-reported problem areas: Exterior Lighting (29) · Power Train (6) · Electrical System (5)
🧭 Reliability snapshot
Compared against other Gmc Yukon Denali Xl model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
55 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (404)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-04-01 · PIT3271Q · Service Bulletin/Repair Instructions
this preliminary information communicates information about how to determine if a wheel and tires size change is available.
Unknown Or Other 2026-03-09 · PIP6104 · Service Bulletin/Repair Instructions
this preliminary information communicates the steps on how to save a gds2 session log and upload to a technical assistance case in cx connect.
Unknown Or Other 2026-03-09 · PIP4902V · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Showing the 6 most recent of 404 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-06-16 · Engine And Engine Cooling · 85,000 mi“the contact owns a 2015 gmc yukon xl denali. the contact stated while driving approximately 30-35 mph, the engine and oil warning lights illuminated, and the contact pulled over. there was no indication of oil leaking on the ground. the contact had her son-in-law, an independent mechanic to check the oil and it was determined that the oil level was…”
2022-02-01 · Fuel System, Gasoline · 126,000 mi“the contact owns a 2015 gmc yukon denali xl. the contact stated that while driving at an undisclosed speed, gasoline would leak out of the fuel tank. the vehicle was taken to the dealer; however, the vehicle was not diagnosed nor repaired. the manufacturer was made aware of the failure. the contact related the failure to tsb number: 14858 (high-pre…”
2021-07-28 · Exterior Lighting:tail Lights · 40,000 mi“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 warranty notice from the local dealer about the fai…”
2019-06-26 · Exterior Lighting · 32,000 mi“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 major safety issue for anyone driving these mode…”
2019-06-20 · Wheels · 60,000 mi“the wheels have corrosion and sharp edges have started to form. these sharp edges are putting pressure on the the tires causing them to lose air. we were required to purchase new wheels as the only solution. wheels should last the life of a vehicle, not four years.…”
2019-06-10 · Power Train · 33,534 mi“my yukon makes very hard shifts when accelerating and decelerating. the tcm was reprogrammed after vehicle shut off on the high way last november. now the truck shudders between 25 and 45mph especially when climbing or filled with passengers. vibration can be felt through the cabin.…”
2019-06-09 · Exterior Lighting · 65,000 mi“faulty brake-light and costly fix. dealership has taillight on back order so a replacement isnt even available. dealership wants $675 just for the part that cant even be ordered. dangerous to drive the vehicle with no solution available.…”
2019-06-08 · Exterior Lighting · 67,500 mi“tail lights intermittently go out without notice. this can happen while driving or stationary…”
2019-06-08 · Electrical System“rear passenger brake light works intermittantly while driving.…”
2019-05-30 · Exterior Lighting · 53,000 mi“we have had both our taillights fail. the blinkers still function but because they are led they say they must replace the whole unit. each side cost $672. that is outrageous for a taillight. there needs to be a way to replace each piece.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.