Is the 2015 GMC Yukon XL a bad year?
309 owner complaints to NHTSA. Engine and transmission complaints are in line with other Yukon XL years.
Keep it
Engine and transmission complaints for the 2015 GMC Yukon XL are in line with other Yukon XL years. Exterior lighting, brakes and electrical system stand out for this year: see below.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2015 Yukon XL owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 70,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| Exterior lightingSTANDS OUT | 140 (45%) | 52k–85k miles · around this mileage | — |
| BrakesSTANDS OUT | 64 (21%) | 57k–100k miles · around this mileage | Brake pad replacement (one axle) $115–$390 · Brake pads and rotors replacement (one axle) $200–$1,084 |
| Electrical systemSTANDS OUT | 58 (19%) | 55k–87k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Transmission and drivetrain | 35 (11%) | 36k–93k miles · around this mileage | CV axle / CV joint replacement (one side) $300–$1,500 · Automatic transmission replacement $2,500–$7,000 |
| Engine | 28 (9%) | 65k–127k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Body structure | 12 (4%) | too few with a mileage | — |
| Steering | 11 (4%) | too few with a mileage | — |
| Fuel system | 8 (3%) | too few with a mileage | — |
| Suspension | 5 (2%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 70,000 miles. Not a quote.
What owners reported alongside their complaints
Of 309 complaints: 6 mention a crash · 3 mention a fire · 2 report an injury · 5 say the car was towed.
10 complaints were filed in the last 12 months, the newest in Nov 2026.
Counts of what owners wrote in their complaints, not verified by anyone.
Recalls for the 2015 GMC Yukon XL: 2
Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash. A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash. A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from GMC: 743
Repair instructions GMC sent its dealers for symptoms seen in the shop on the 2015 GMC Yukon XL. Ask a dealer or mechanic for a bulletin by its number.
Normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal…
Diagnostic aids for a no start or DTC'S following a transmission replacement
Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares
Delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears
NHTSA defect investigations: 1
Brake Vacuum Pump Failure
Neighbouring years
2016 Yukon XL: 202 complaints, keep it.
Every GMC Yukon XL year
2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026 · All Yukon XL years side by side
Other GMC models: GMC Acadia · GMC Canyon · GMC Denali · GMC Envoy · GMC Envoy XL · GMC Envoy Xuv · GMC Jimmy · GMC Safari · GMC Savana · GMC Sierra · GMC Sierra 1500 · GMC Sierra 2500 · GMC Sierra 3500 · GMC Sierra Denali · GMC Sonoma · GMC Terrain · GMC Yukon · GMC Yukon Denali · GMC Yukon Denali XL · GMC Yukon XL 1500. All makes and models.
Questions
Is the 2015 GMC Yukon XL a bad year?
309 owner complaints to NHTSA. Engine and transmission complaints are in line with other Yukon XL years. At 70,000 miles the tool says: Keep it.
What are the most common problems with the 2015 GMC Yukon XL?
By owner complaints to NHTSA: exterior lighting (140), brakes (64), electrical system (58), transmission and drivetrain (35), engine (28).
How many recalls does the 2015 GMC Yukon XL have?
2 recall campaigns list this model year: Seat belts (NHTSA 17V-437), Seat belts (NHTSA 16V-651). A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.