Both brake lights went out. Dealer said had to replace entire fixture. Not covered under bumper to bumper extended warranty purchased. Safety hazard that many other 2015 yukon owners have experienced. Trim/seal appliqus around door windows also coming off and also not co weed under b2b warranty. Shottily made vehicle.
2015 GMC Yukon electrical problems
moderate 66 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
66
Recalls
0
Avg fix
$850
1crash
1fire
When does it fail?
Of the 66 electrical complaints filed for the 2015 GMC Yukon, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 66 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Among the 19 model years of GMC Yukon in our records for electrical problems, this one ranks #2 by owner-complaint volume.
What owners are reporting 2 most recent
The vehicle's tail light assembly on both the drivers and passenger's sides are defective. The solder does not hold and the vehicle's brake lights and running lights fail intermittently. The driver is totally unaware of this major issue that the brake lights are not working. In researching this problem on the internet there are numerous customers of GMC's yukon's and denali's who are…
Had electrical trouble with your 2015 GMC Yukon?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2015 GMC Yukon?
It's a documented issue but not catastrophic. 66 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Across the 42 complaints that reported odometer mileage, most electrical failures cluster between 47,000 and 80,000 miles, with the median around 63,000. A quarter of owners report trouble before 47,000; a quarter make it past 80,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2015/GMC/Yukon.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.