Home · 2015 GMC Yukon Denali Xl 1500 · Complaints

What 977 owners told NHTSA about the 2015 GMC Yukon Denali Xl 1500

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (977)Crash / fire / injury (24)Lights (489)Electrical system (168)Brakes (158)Transmission & drivetrain (102)Engine (63)Steering (51)Body & structure (28)Suspension (27)Fuel system (23)Visibility & wipers (11)

489 of 977 complaints match · Lights · clear filters · page 17 of 20

Aug 7, 2018Lights

PASSENGER SIDE LED BRAKE LIGHT DOES NOT WORK WHEN BRAKING. ASSEMBLY HAS BEEN REMOVED AND SWITCHED WITH DRIVER SIDE TO VERIFY THAT IT IS NOT THE WIRING HARNESS OR ANY ELECTRICAL BETWEEN THE BRAKES AND THE LED BRAKE LIGHTS.

NHTSA ODI 11118225

Aug 7, 2018Lights

LED BRAKE LIGHTS WENT OUT. WHEN I DID A SEARCH ON THIS PROBLEM, DISCOVERED THAT MANY OTHERS HAVING THE SAME PROBLEM WITH THEIR YUKONS. DEALERS CHARGING ASTRONOMICAL PRICES TO FIX. LEDS ARE SUPPOSED TO LAST LONGER THAN REGULAR BULBS. THESE LIGHT ASSEMBLIES HAVE A WELL KNOWN WEAK SPOT THAT CAUSES THEM TO GO OUT. GMC HAS COME UP WITH AN UPDATED ASSEMBLY. THEY SHOULD ISSUE A RECALL AND REPLACE THE ORIGINAL WEAK ASSEMBLIES WITH THE NEW ONES.

NHTSA ODI 11118231

Aug 7, 2018Lights

DRIVERS SIDE BRAKE LIGHT SOMETIMES WORKS, SOMETIMES DOESN'T.

NHTSA ODI 11118356

Aug 7, 2018Lights

RIGHT TAIL LIGHT (ONLY RED LIGHT) DOESN'T WORK. REVERSE LIGHT WORKS AND SIGNAL LIGHT WORKS ALL THE TIME BUT RED PART DOESN'T. IT WORKS AND THEN IT DOESN'T. IT DOES IT RANDOMLY.

NHTSA ODI 11118412

Aug 5, 2018Lights

AT LESS THAN 3 YEARS OLD BOTH TAILLIGHTS HAVE QUIT. THEY ARE A SEALED ASSEMBLY SO THE WHOLE SIDE NEEDS REPLACED. WE WERE QUOTED $750 EACH. OUR THREE YEAR OLD YUKON HAS NO TAILLIGHTS AND WILL TAKE $1500 TO REPLACE. I'M DISAPPOINTED IN GM TO SAY THE LEAST.

NHTSA ODI 11115824

Aug 3, 2018Electrical systemLights

TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING 65 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT THE BRAKE LIGHTS, TAIL LIGHTS, AND THE INTERIOR REAR BRAKE LIGHT FLICKERED. THE VEHICLE WAS TAKEN TO DELANO CHEVROLET BUICK GMC (600 1ST AVE, DELANO, CA 93215, 661-735-4974) TO BE DIAGNOSED AND REPAIRED. THE DIAGNOSIS RESULTS WERE UNAVAILABLE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 92,000.

NHTSA ODI 11115599

Aug 1, 2018Lights

PASSENGER SIDE TAILLIGHT IS NOT WORKING CORRECTLY. SIGNAL WORKS, BUT THE BRAKE LIGHT AND RUNNING LIGHT DOES NOT WORK. I GOT THIS VEHICLE IN APRIL 2014, TAILLIGHT STARTED GOING OUT EXACTLY 2 YEARS AFTER PURCHASE. TOOK VEHICLE TO DEALERSHIP AND THEY SAID IT WOULD BE ABOUT $650 TO REPLACE THE WHOLE TAILLIGHT AND THAT IT WAS NOT REPAIRABLE. THE TAILLIGHT IS STILL OUT AND I REFUSE TO REPLACE IT SINCE I BELIEVE THIS IS A DEFECT. I HAVE HEARD MANY OTHER SIMILAR STORIES OF OTHER YUKONS WITH THIS SAME PROBLEM. WHEN IN COLD WEATHER (UNDER 60 DEGREES F) THE LIGHT USED TO FLICKER BUT NOT STAY ON. IT HAS BEEN HOT MOST OF THIS YEAR SO I DO NOT KNOW IF THIS IS STILL TRUE.

NHTSA ODI 11115144

Aug 1, 2018LightsBrakes

I WAS TOLD MY A COLLEGUE THAT MY DRIVERS SIDE BRAKE LIGHT WAS OUT. I TOOK IT INTO THE LOCAL MECHANIC AND IT WAS NOT OUT. A FEW MONTHS GO BY AND I AM TOLD AGAIN, THAT MY DRIVERS SIDE TAIL LIGHT IS OUT. I TAKE IT TO A DIFFERENT SHOP AND IT IS WORKING CORRECTLY. THE VERY NEXT DAY A TRUCK TELLS ME AT A STOP LIGHT THAT I HAVE NO BRAKE LIGHTS. I WAS PULLED OVER BY A POLICE OFFICER FOR NOT HAVING PROPERLY WORKING BREAK LIGHTS. HE LET'S ME GO WITH A FRIENDLY NOTICE, BUT AS SOON AS I STARTED MY VEHICLE TO DRIVE AWAY HE IMMEDIATELY PULLS ME BACK OVER TO TELL ME THAT HE WAS MISTAKEN THAT ONLY MY DRIERS SIDE BRAKE LIGHT WAS OUT. THIS HAS HAPPENED INTERMITTENTLY OVER THE LAST THREE TO FOUR MONTHS.

NHTSA ODI 11115220

Jul 30, 2018Lights

BRAKE LIGHTS ONLY WORK INTERMITTENTLY. THIS POSES A SAFETY HAZARD WHILE DRIVING AND COULD CAUSE A WRECK. REPLACEMENT IS $800 PER LIGHT, VERY COST PROHIBITIVE.

NHTSA ODI 11114467

Jul 30, 2018Lights

THE BRAKE LIGHTS ON 2015 AND NEWER GMC YUKON, YUKON XL, DENALI, DENALI XL VEHICLES FAIL DUE TO POOR QUALITY CIRCUIT METAL/DESIGN OF BOARD ALLOWING TOO NARROW A CONNECTION FOR METAL USED. THE RESULT IS A CRACK IN THE CIRCUITS METAL WHICH, DEPENDING ON CONDITIONS, BREAKS THE CIRCUIT AND THE TAIL LIGHTS FAIL TO WORK. SPECIFICALLY BRAKE LIGHTS FAIL FIRST PUTTING THE DRIVER OF THE VEHICLE IN AN SERIOUS SAFETY SITUATION WITH NO INDICATION THAT THE FAILURE HAS HAPPENED. IN ADDITION, THE SAFETY OF DRIVERS BEHIND A GM VEHICLE EXHIBITING THIS PROBLEM ARE AT SERIOUS RISK AS THEY MAY NOT REALIZE THE VEHICLE IS COMING TO A STOP. GMC IS REFUSING TO COVER THE ISSUE AND REQUIRES $800 PER LIGHT AND OPENLY ACKNOWLEDGES THAT THE NEW LIGHT CAN DO THE SAME THING AT ANY GIVEN TIME. I DON'T NORMALLY GO SO FAR WITH AN ISSUE, BUT THIS SEEMS PARTICULARLY DANGEROUS AND WARRANTS A RECALL. WITH THE LACK OF INDICATION OTHER THAN COURTEOUS DRIVERS TELLING YOU THE LIGHTS ARE OUT OR POLICE PULLING YOU OVER TO TELL YOU, THE ISSUES OFTEN START WITHIN WARRANTY PERIOD BUT NO WAY TO KNOW. NUMEROUS REPORTS OF TAIL LIGHT FAILURES WITH NEW VEHICLES INDICATE THAT THE ISSUE IS NOT RELATED TO AGE. AS WITH MY LIGHTS, NO PHYSICAL DAMAGE TO THE LIGHT AT ALL ELIMINATES SOME KIND OF IMPACT OUTSIDE OF NORMAL ROAD BUMPS. HOPEFULLY ACTION CAN BE TAKEN.

NHTSA ODI 11114534

Jul 29, 2018Electrical systemLightsVisibility & wipers

BOTH LED BRAKE LIGHTS HAVE FAILED. IF YOU TAP THEM THEY WOK FOR A MINUTE BUT WHEN DRIVING THEY GO OUT AGAIN. THE SEAT VIBRATES TO ALERT YOU OF OBSTACLES BUT THE MOTOR IN THE SEAT ONLY WORK PERIODICALLY. THE REAR WINDOW WIPER HAS FAILED. THE YUKON HAS BEEN DRIVEN 3 YEARS AND 50K MI AND NOW NEEDS THOUSANDS OF DOLLARS IN REPAIRS BECAUSE OF THE DEFECTIVE PARTS USED.

NHTSA ODI 11114352

Jul 27, 2018Lights

THE RIGHT & LEFT REAR BRAKE LIGHTS AND RUNNING LIGHTS INTERMEDATLY FAIL. I HAVE HAD MY RIGHT ONE FAIL, MY LEFT ONE FAIL AND ON ONE OCCASION BOTH FAILED (RIGHT, LEFT, BRAKE & RUNNING LIGHTS AT NIGHT TIME. I HAD PEOPLE FLAGGING ME DOWN AT INTERSECTIONS AND HAD FRIENDS TEXT ME WHILE THEY OBSERVED ME DRIVE AWAY. THE LIGHTS WOULD SOMEHOW BEGIN TO FUNCTION PROPERLY BUT IT IS UNKNOWN HOW LONG THEY WOULD REMAIN NON FUNCTIONING. THIS IS AN ENORMOUS SAFETY CONCERN! IT IS UNBELIEVABLE THAT GM HAS NOT RECALLED THE POORLY MANUFACTURED LED LIGHTS ON THEIR VEHICLES. THE FACT THAT THEY FUNCTION PROPERLY ONE DAY AND THEN DON'T FUNCTION THE NEXT IS UNACCEPTABLE. MY INITIAL QUOTE FROM GM TO HAVE THE LIGHT REPLACED WAS $1,600 FOR BOTH LIGHTS. RIDUCLOUS COST FOR A FOUR YEAR OLD $60K + VEHICLE. IT SHOULD BE NOTED THAT THE TOP /THIRD BRAKE LIGHT SEEMED TO FUNCTION AT ALL TIMES OR WAS NEVER REPORTED TO ME AS NOT FUNCTIONING. I DON'T HAVE PHOTOS OF THE INOPERABLE REAR BRAKE LIGHTS. BOTH

NHTSA ODI 11114141

Jul 27, 2018Lights

MY VEHICLE IS CURRENTLY A LITTLE OVER 3 YEARS OLD AND I HAVE OWNED THE VEHICLE FOR THE LAST 2.5 YEARS. I AM HIGHLY UPSET THAT THE VEHICLE IS IN GREAT CONDITION, HOWEVER THE FRONT DRIVER SIDE LED STRIP IN THE HEAD LIGHT IS OUT. I PURCHASED AN EXTENDED WARRANTY FOR ALMOST $2000 WHEN I BOUGHT THE VEHICLE WHICH THEY WILL NOT COVER. I ALSO HAVE THE BACK PASSENGER TAIL LIGHT OUT AND I AM TOLD THAT THE WHOLE PANEL NEEDS REPLACING. A TOTAL FOR THE LED STRIP AND BACK PANEL WILL COST CLOSE TO $1900. WHY IN THE WORLD IS IT THAT AND LED LIGHT IS SUPPOSED TO LAST 5X LONGER THAN A REGULAR LIGHT, BUT IT JUST GOES OUT? THAT MAKES NO SENSE. IF THE VEHICLE WAS 10 YEARS OLD, THAT IS ONE THING, BUT IT BEING STILL ON THE NEW END, MAKES NO SENSE. ALSO, HOW DOES THE WHOLE BACK LIGHT PANEL JUST GO OUT? AND WHY DO DEALERSHIPS ACT LIKE " OH WELL, THERE IS NOTHING WE CAN DO!" GMC MUST BE LOWERING THEIR STANDARDS. HAD I KNOWN THIS VEHICLE WOULD HAVE THESE PROBLEMS AND NO ONE SEEMS TO WANT TO HELP, THEN I WOULD HAVE NEVER BOUGHT IT. SOMETHING NEEDS TO BE DONE, ESPECIALLY SINCE I HAVE SPEND THE LAST 30 MINUTES READING A FORUM OF A LARGE AMOUNT OF OTHERS HAVING HAD THE SAME ISSUE.

NHTSA ODI 11114185

Jul 26, 2018Lights

LED BRAKE LIGHTS HAVE GONE OUT AND THERE IS NOT A REASONABLE REPAIR.

NHTSA ODI 11113808

Jul 26, 2018Lights

THE SUBURBAN IS NOT FULLY 3 YEARS OLD AND HAVING ISSUES WITH THE TAIL LIGHTS. IT IS 1700.00 TO REPAIR TAIL LIGHTS. THAT IS CRAZY. THE LIGHTS GO ON AND OFF. DAYS IT WORKS DAYS IT DOESN'T. I HAVE HAD 2 WARNINGS TO GET THEM FIXED. FIRST IT WAS JUST THE RIGHT ONE AND THE OFFICER NOTICED THAT THE LEFT KEEP GOING ON AND OFF.

NHTSA ODI 11114010

Jul 24, 2018Lights

REAR BRAKE/TAIL LIGHTS ARE NOT WORKING ALL THE TIME. THEY GO IN AND OUT.

NHTSA ODI 11113471

Jul 21, 2018Lights

REAR BRAKE LIGHTS FAILED.

NHTSA ODI 11112831

Jul 19, 2018Lights

BOTH DRIVER SIDE AND PASSENGER SIDE REAR BRAKE LIGHTS FAIL INTERMITTENTLY. AT TIMES IT'S JUST ONE SIDE OR THE OTHER, OCCASIONALLY BOTH SIDES FAIL AT THE SAME TIME. THIS IS A 2015 VEHICLE WITH 40K MILES AND BOTH LIGHTING ASSEMBLY'S ARE FAILING.

NHTSA ODI 11112378

Jul 19, 2018SuspensionLights

REPLACED BOTH FRONT STRUTS AT AROUND 91,000 MILES. DEALER SAID STRUTS HAD "LOCKED UP". DEALER REPLACED STRUTS ON FEBRUARY 19, 2018 AT A COST OF $1,818.66. LED BRAKE LIGHTS QUIT WORKING. NOT SURE OF EXACT DATE WHEN THE BRAKE LIGHTS QUIT WORKING.

NHTSA ODI 11112488

Jul 16, 2018Lights

PASSENGER SIDE LED TAILLIGHT ASSEMBLY IS OUT WITH ONLY 22,000 MILES ITS PAST THE 3 YEAR WARRANTY PERIOD. THE DEALERSHIP IS ASKING APPROX $700 TO REPLACE/REPAIR.

NHTSA ODI 11111482

Jul 16, 2018LightsBrakes

DRIVER SIDE BRAKE LED LIGHTING IS WORKING INTERMITTENTLY. HAD IT REPLACED UNDER WARRANTY. PASSENGER SIDE BRAKE LED LIGHTING NOW WORKING INTERMITTENTLY, NEW ISSUE. HAVE NOT HAD REPLACED YET DUE TO OUTRAGEOUS COST($700) FOR FIXTURE REPLACEMENT. ONLY 40,000 MILES ON VEHICLE OBVIOUSLY REFLECTS A SERIOUS SAFETY ISSUE TO FINANCIALLY STRAPPED CONSUMERS.

NHTSA ODI 11111684

Jul 11, 2018Lights

REAR TAIL LIGHT IS OUT AND DEALERSHIP WANTS TO CHARGE $900 TO REPLACE THE ENTIRE ASSEMBLY. THIS VEHICLE IS 3 YEARS OLD. THERE IS ABSOLUTELY NO REASON AN LED BULB WOULD OR SHOULD BURN OUT THIS FAST NOR SHOULD THE ENTIRE ASSEMBLY BE REPLACED. GM SHOULD BE REQUIRED TO RECALL OR REPLACE JUST THE BULBS AT COST.

NHTSA ODI 11110712

Jul 11, 2018Lights

I WAS PULLED OVER FOR NO BRAKE LIGHTS, OFFICER TOLD ME HE HAS THE SAME VEHICLE AND THAT HE HAS THE SAME PROBLEM. THE BRAKE LIGHTS COME ON AND OFF WHEN EVER THEY WANT TO. VERY VERY UNSAFE

NHTSA ODI 11110761

Jul 11, 2018Lights

BOUGHT 2015 YUKON IN SEPTEMBER 17, CERTIFIED BY DEALER AND JUNE 18 I NOTICED REAR LIGHT FLICKERING ON DRIVER SIDE. BOUGHT WARRANTY FOR TRUCK AND IT'S NOT COVERED. DEALER SAYS 876$ FOR ONE NEW LIGHT . I HAVE READ ONLINE NOW WHERE ALOT OF COMPLAINTS ARE BEING MADE FOR SAME ISSUE. ALSO HAVE EXTERIOR BLACK DOOR PANEL FLAPPING IN THE WIND AND DEALER SAYS THAT'S NOT COVERED UNDER WARRANTY EITHER. LOOKS LIKE I WILL BE TRADING THIS TRUCK IN ASAP

NHTSA ODI 11110882

Jul 10, 2018Transmission & drivetrainLights

VEHICLE STARTED HAVING A VIBRATION AT CRUISING SPEEDS AFTER 100K MILES. DEALERSHIP STATES THE DRIVESHAFT IS WHARPED AND NEEDS REPLACING.. REAR TAILLIGHTS ALSO ARE GOING IN AND OUT INTERMITTENTLY. DEALER CLAIMS THE LEDS ARE BAD AND THE WHOLE LIGHT ASSEMBLY NEEDS REPLACING. I HAVE OWNED MANY VEHICLES AND HAVE NEVER HAD ISSUES WITH A BENT DRIVESHAFT OR DEFECTIVE TAILLIGHTS THAT REQUIRE THE WHOLE ASSEMBLY TO BE REPLACED. THE LIGHT ASSEMBLY IS $750 QUOTED BY DEALERSHIP.

NHTSA ODI 11110444

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Working with the data? Download all 977 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2015 GMC Yukon Denali Xl 1500 verdict →