DRIVER SIDE REAR BRAKE LIGHT WORKING INTERMITTENTLY, APPROX. 10% OF THE TIME. CALLED DEALERSHIP AND SAID IT IS KNOWN ISSUE WITH MOST DENALI BRAKE LIGHTS. WAS QUOTED TO REPLACE ENTIRE ASSEMBLY $900. EACH SIDE FOR THIS KNOWN SAFETY ISSUE. THIS IS A SERIOUS SAFETY ISSUE AND KNOWN BY GMC WITH NO RECALLS AVAILABLE.
2015 gmc Yukon lighting problems
moderate 229 complaints filed with NHTSA · avg repair $250
Complaints
229
Recalls
0
Crashes
0
Avg fix
$250
What owners are reporting 6 most recent
PASSENGER SIDE TAIL LIGHT STOPS WORKING OCCASIONALLY. THIS AFFECT'S THE BRAKE LIGHT AND NIGHT DRIVING. IT HAS STOPPED WORKING UP TO A WEEK AT A TIME, BUT THEN STARTS WORKING AGAIN. IT MIGHT BE WEATHER RELATED.
TAIL LIGHTS WORK INCONSISTENTLY, DEALERSHIP TELLS ME IT'S COMMON PROBLEM WITH MY YEAR AND MODEL.
WE WERE STOPPED AT A RED LIGHT TODAY BY SOMEONE TELLING US OUR TAIL LIGHT WAS BLINKING AND GOING OUT. OUR VEHICLE ONLY HAS 65000 MILES! I WOULD THINK A LED LIGHT SHOULD NOT GO OUT YET. MY VEHICLE SITS UNDER A CARPORT WHEN NOT IN USE. I HAVE SEEN NUMEROUS COMPLAINTS ONLINE FOR THIS SAME PROBLEM FOR SAME YEAR MODEL
Both tail lights fail. I just bought this vehicle at Ewald Automotive in Oconmowoc Wi a month ago with 100k and I know they were aware of the problem and so is GMC. I am not paying 900 bucks for each tail light. They are absolute junk. The left side someone already messed with it because there is electrical tape on it. Ewald laughed in my face.
LEFT REAR TAIL LIGHT QUIT WORKING, I WAS ABLE TO BREAK THE COVER OFF AND SOLDERED THE LED MOUNTING STRIP,. RIGHT SIDE QUIT WORKING SO I BROKE THE COVER OFF BUT THIS TIME IT WAS SEVERELY DAMAGED. SOLDERED IT. LEFT SIDE QUIT WORKING AGAIN SO I REPLACED BOTH SIDES WITH AFTERMARKET UNITS. DATE BELOW IS JUST TO FILL THE SPACE. IT WAS AFTER WARRANTY EXPIRED AND OVER ABOUT 6 MONTHS TIME.
Common questions
How serious is the lighting problem on the 2015 gmc Yukon?
It's a documented issue but not catastrophic. 229 complaints have been filed. Repairs average $250 and most owners catch it before it causes a breakdown.
At what mileage does the lighting typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $250 for lighting 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 lighting?
No active recalls currently cover lighting 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.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. 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.