2015 GMC Yukon XL: common problems

Owners of the 2015 GMC Yukon XL filed 308 complaints with NHTSA, most often about exterior lighting and service brakes. Details by component below, with sources.

Key figures

Owner complaints: 308
involving a crash: 6

What fails most often

1 Exterior lighting 45% of all complaints
2 Service brakes 21% of all complaints
3 Electrical system 19% of all complaints
4 Powertrain 11% of all complaints
5 Engine 8% of all complaints
6 Structure 4% of all complaints
7 Steering 4% of all complaints
8 Fuel/propulsion system 2% of all complaints

Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Exterior lighting: 140 complaints (45% of all).
Service brakes: 64 complaints (21% of all), 5 of them with a crash reported by the owner.
Electrical system: 58 complaints (19% of all).
Powertrain: 35 complaints (11% of all), 3 of them with a crash reported by the owner.
Engine: 26 complaints (8% of all).

Symptoms owners describe

How many of the 308 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

headlights and tail lights83 · 27%
warning lights, check engine28 · 9%
vibration17 · 6%
A/C or heater11 · 4%
knocking, grinding or other noise11 · 4%
windows, sunroof10 · 3%
steering or power steering problems9 · 3%
jerking, harsh shifts7 · 2%
smoke, burning smell, fire7 · 2%
stalls while driving6 · 2%

Components owners complain about

Component	Owner complaints	involving a crash
Exterior lighting	140	0
Service brakes	64	5
Electrical system	58	0
Powertrain	35	3
Engine	26	0
Structure	12	0
Steering	11	0
Fuel/propulsion system	6	0
Suspension	5	1
Forward collision avoidance	4	0
Tires	3	0
Vehicle speed control	3	0
Wheels	3	0
Lane departure	2	0

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

The brakes failed in my car causing a rear collision with an object in my driveway. After inspection from a certified gmc dealership, the brake failure was not caused by service neglect or age of brakes, it was due to the vaccum pump failure to provide pressure.
Service brakes · crash · 2020-12-07 · NHTSA complaint #11378243
There was no warning light regarding the hood. The vehicle was placed into storage until I research the proper procedures of reporting the safety hazard, so no one has inspected the vehicle.
Structure · 2026-09-18 · NHTSA complaint #11765170
The check engine light was flashing. The front collision was unavailable. The contact left the vehicle at a gas station. Upon research, the contact located NHTSA Campaign Number: 14V374000 (Power Train), which was similar to the failure. The local dealer was contacted, who confirmed there were no open recalls.
Powertrain · 2026-06-04 · NHTSA complaint #11742098
The contact stated while driving at various speeds, the vehicle shuddered. The contact stated that upon pulling into a parking lot, the vehicle stalled. The vehicle was pushed into a parking space with assistance.
Powertrain · 2026-04-15 · NHTSA complaint #11731474
Please donât hesitate to reach out if you need anything else. VIN1GKS2HKC8FR165487 Special Coverage Adjustment N182180270 Tail Lamps Inoperative Having issues described by NTSA and vehicle has 62,000 miles but falls after the expiration date.
Exterior lighting · 2026-03-25 · NHTSA complaint #11727058
There was no warning light illuminated. The contact's wife and daughter were also inside the vehicle during the failure and were frightened and concerned for their safety during the failure. The dealer was contacted and was provided a description of the failure over the phone.
Service brakes · 2026-03-23 · NHTSA complaint #11726283
While driving back home from my trip the truck all a sudden made a squealing noise and the engine just stopped. I was on the high way . I was able to coast the vehicle off onto the exit ramp. The vehicle was towed home. The following day it was towed to the repair shop. The shop has confirmed engine failure.
Engine · 2026-01-19 · NHTSA complaint #11711796
The contact stated that when the vehicle was started, the vehicle started shaking with a tapping sound coming from the engine compartment. The contact stated that there were no warning lights illuminated. The contact stated that while driving at an undisclosed speed around the block, the failure persisted.
Engine · 2025-12-09 · NHTSA complaint #11703969

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

20154
201610
20176
201852
201987
202054
202121
202220
202310
202411
202525
20268

Comparison

By complaint count this model year ranks 1,304 of 36,656 model years in the NHTSA data (top 4% most complained about).

On average one model year of the Yukon XL has 85 complaints (29 years in the data). This year has 308, above average.

What to check before buying

Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.

Questions and answers

What are the most common problems with the 2015 GMC Yukon XL?

Owner complaints to NHTSA most often mention: exterior lighting, service brakes, electrical system. Total complaints: 308. The most frequent symptoms in complaint texts: headlights and tail lights (27%), warning lights, check engine (9%), vibration (6%).

How many service bulletins (TSB) were issued for the 2015 GMC Yukon XL?

NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2015 GMC Yukon XL from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2015 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.