"How reliable is the 2015 Gmc Yukon Denali?"

"Based on 90 NHTSA complaints, the 2015 Gmc Yukon Denali has a median complaint mileage of 60000 miles. The most common issue is Exterior Lighting."

"What are common problems with the 2015 Gmc Yukon Denali?"

"The most frequently reported component in NHTSA complaints for the 2015 Gmc Yukon Denali is Exterior Lighting, accounting for a significant portion of the 90 total complaints filed."

2015 Gmc Yukon Denali: Reliability Data

Source: NHTSA — 90 complaints

Total Complaints

60,000mi

Median Mileage

Exterior Lighting

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

45,000 25th Percentile

60,000 Median Mileage

77,254 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Exterior Lighting

Electrical System

Unknown Or Other

Power Train

Service Brakes

Engine

Steering

Suspension

Brake Lights

Wheels

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"VIBRATION THOUGH CAR AT HIGH SPEEDS SINCE CAR IS NEW. DEALER REPLACED ONE TIRE AND THAT CURED PROBLEM FOR A SHORT PERIOD. HAVE RETURNED VEHICLE TO DEALER SEVERAL TIMES FOR THE RECURRING PROBLEM AND IT HAS NOT BEEN ADDRESSED CORRECTLY RECEIVED RECALL LETTER FROM CONTINENTAL TIRE DUE TO VIBRATION..."

"HEADLIGHTS DO NOT ILLUMINATE THE ROAD FAR ENOUGH TO ALLOW SAFE DRIVING. TOOK VEHICLE TO LOCAL DEALER AND THEY CHECKED THE LIGHTS AND SAID THEY MEET MANUFACTURES SPECIFICATION. WHEN DRIVING ON COUNTRY ROAD WITH NO OTHER ILLUMINATION THE HEADLIGHTS DO NOT PROJECT FAR ENOUGH TO SEE WHAT IS AHEAD. DR..."

"IN MOTION VEHICLE SHUTTERS, CLUNKING IN BETWEEN GEARS, CLUNKS GOING INTO REVERSE, SHUTTERS BETWEEN 30-40 MPH AND OVER 65 MPH. BOUGHT VEHICLE BRAND NEW OFF SHOW ROOM FLOOR, VEHICLE WAS OUT OF ALIGNMENT WHEN I PURCHASED IT. AROUND 12,000 MILES NOTICED IT WAS SHUTTERING AND AS TIME HAS CONTINUED IT HAS..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Exterior Lighting 38 complaints

25th: 42,000 mi Median: 58,000 mi 75th: 78,559 mi

Electrical System 11 complaints

25th: 60,000 mi Median: 64,000 mi 75th: 76,000 mi

Unknown Or Other 9 complaints

25th: 44,500 mi Median: 52,000 mi 75th: 54,000 mi

Power Train 8 complaints

25th: 25,000 mi Median: 55,500 mi 75th: 89,000 mi

Service Brakes 5 complaints

25th: 60,000 mi Median: 72,000 mi 75th: 76,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

TX: 13 AZ: 8 CO: 7 SC: 7 CA: 6 GA: 5 FL: 5 MA: 5 LA: 4 VA: 4

Gmc Yukon Denali — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1999	38	100,000	Antilock/Traction Control/Electronic Limited Slip	2
2000	22	110,000	Antilock/Traction Control/Electronic Limited Slip	0
2001	40	95,000	Service Brakes	2
2002	31	89,740	Service Brakes	2
2003	97	97,000	Electrical System	8
2004	141	80,000	Instrument Cluster/Panel	6
2005	68	78,000	Electrical System	4
2006	24	78,000	Engine	2
2007	175	90,000	Air Bags	4
2008	74	74,500	Air Bags	0
2009	58	71,500	Air Bags	1
2010	75	71,000	Unknown Or Other	0
2011	116	75,000	Unknown Or Other	0
2012	32	60,000	Unknown Or Other	0
2013	39	58,000	Air Bags	0
2016	28	45,000	Exterior Lighting	3

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28