STOP LIGHT DONT WORK
NHTSA ODI 11255641
Home · 2015 GMC Yukon Denali Xl · Complaints
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.
Newest first · 606 complaints · page 9 of 25
STOP LIGHT DONT WORK
NHTSA ODI 11255641
WHILE TRAVELING ON A HIGHWAY TO WORK-RELATED CAMP, UPON ARRIVAL, CO-WORKERS INFORMED ME ONE OF MY BRAKE LIGHTS WAS OUT. BRAKELIGHT WORKED SPORADICALLY BEFORE COMPLETELY GOING OUT FOR ABOUT 2 WEEKS FINALLY BEING ABLE TO SHOW SERVICE DEPARTMENT. RESEARCHED CARGURUS AND NUMEROUS PEOPLE REPORTED THE CIRCUIT CRACKS AND EVENTUALLY BURNS OUT. DESIGN FLAW WHICH TURNS INTO A SAFETY ISSUE!!! RECALL IS NEEDED!!!
NHTSA ODI 11255240
THE BRAKE LIGHTS WORK AND THEN STOP WORKING. IT IS NOT THE BULB NOR THE FUSE. I WAS TOLD IT COULD BE THE LIGHT ASSEMBLIES WHICH IS VERY COSTLY. THIS HAS BEEN GOING ON FOR A FEW WEEKS. I HAVE DONE RESEARCH AND IT SEEMS THERE ARE A LOT OF ISSUES WITH THE BRAKE LIGHTS FOR THIS MAKE AND MODEL OF VEHICLE. MANY PEOPLE STATE THEY HAVE THE SAME ISSUE.
NHTSA ODI 11255346
THE REAR TAIL LIGHT SPORADICALLY QUITS WORKING. THERE APPEARS TO BE A SHORT OR MALFUNCTION IN THE LED LIGHT STRUCTURE. THIS OCCURS WHEN STOPPED AND IN MOTION. MALFUNCTIONING BREAK LIGHTS ARE A SERIOUS SAFETY CONCERN.
NHTSA ODI 11254876
BOTH DRIVE SIDE AND PASSENGER TAIL BRAKE LIGHTS NOT WORKING. ISSUE CAUSED BY THE LEDS BEING A 1 LARGE CHEAP CIRCUIT INSIDE THE UNIT. THE CIRCUIT CRACKS CAUSING THE LIGHTS NOT TO WORK.
NHTSA ODI 11254992
ABOUT 2 WEEKS AGO THE VEHICLE HAD AN EXCELLENT RIDE, THEN ALL OF A SUDDEN IT HAD NO SUSPENSION AT ALL. IT RIDES EXTREMELY ROUGH AND I WOULD SAY VERY UNSAFE TO OPERATE
NHTSA ODI 11255102
BRAKE LIGHT IS WILL NOT WORKING ON PASSENGER SIDE
NHTSA ODI 11255172
THE PROBLEM I BEEN HAVING IS WITH THE STEERING. WHEN YOU TURN THE STEERING WHEEL SUDDENLY OR JUST KINDA FAST THE STEERING ASSIST WILL LOCK UP AND ALL OF THE DASHBOARD AND AC WILL SHUT OFF AND THAN RESTARTS. NOT ALL THE TIME BUT ABOUT 6 TIMES THE ENGINE SHUT OFF COMPLETELY. THIS IS A VERY SERIOUS AND DANGEROUS SITUATION THAT IT PUTS YOU IN THIS CAN HAPPEN WHEN STATIONARY WHEN YOU TRYING TO PULL OUT ON THE HIGHWAY OR AT SLOT SPEED WHEN TRYING TO TURN THIS HAPPENS ALL THE TIME
NHTSA ODI 11254754
MY 2015 YUKON DENALI HAD A COMPLETE SUSPENSION FAILURE ON ALL FOUR TIRES AT 67,535 MILES. I WAS TOLD THIS WAS WAY TOO SOON TO BE HAVING SUSPENSION PROBLEMS ON THIS, BUT WHEN DIAGNOSED, THAT WAS THE ISSUE. I WAS TOLD BY MY AUTO REPAIR SHOP THAT IT WAS UNSAFE TO DRIVE IN THAT CONDITION, AS THE STEERING COULD FAIL TO WORK CORRECTLY WHEN GOING THROUGH TIGHT TURNS AND BRAKING. THEY SAID THAT IT COULD POSSIBLY SKID DUE TO NOT HAVING ANY SHOCKS OR STRUTS FUNCTIONING. WHEN THE VEHICLE WAS LIFTED, THE WHEELS DID NOT LOWER FROM THE CARRIAGE AT ALL DUE TO COMPLETE FAILURE OF THE SUSPENSION SYSTEM. WE REPLACED THE REAR SHOCKS AND FRONT STRUTS TO ADDRESS THIS ISSUE. THIS PROBLEM DID NOT OCCUR ALL AT ONCE, BUT RATHER OVER A PERIOD OF A COUPLE WEEKS WHEN THE VEHICLE STARTED TO RIDE ROUGHER ON EACH TIRE. ALL FOUR WENT OUT WITHIN A SPAN OF TWO WEEKS TIME.
NHTSA ODI 11254851
CIRCUIT BOARDS IN LED TAIL LIGHTS FAILING. THIS RESULTS IN SPORADIC FUNCTIONING BRAKE LIGHTS. THE DESIGN OF THE BUS BAR IN THE TAIL LIGHT HAS RESULTED IN CREATING WEAK SPOTS IN THE BUS BAR THAT CRACK AND UNLESS REPLACED OR REPAIRED AT SUBSTANTIAL COST THE BRAKE LIGHTS MAY OR MAY NOT FUNCTION PROPERLY.
NHTSA ODI 11254506
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
NHTSA ODI 11254591
WHEN THE GAS PEDAL IS DEPRESSED FULLY, THE GAS PEDAL STICKS THE CAR CONTINUES ACCELERATING. THE PROBLEM BEGAN WITH INITIAL COMPLETE DEPRESSION OF GAS PEDAL TO CAUSE SOME ACCELERATION AND DEPRESSING BRAKE ALLOWED VEHICLE TO RETURN TO NORMAL DRIVING. THE PROBLEM HAS WORSENED OVER TIME TO THE POINT WHERE BOTH FEET DEPRESSING ON THE BRAKE PEDAL DID NOT AFFECT ACCELERATION AND CAUSED SMOKE TO EMIT FROM BOTH FRONT BRAKE PADS, AND THE PASSENGER FRONT BRAKE PAD FLAMED UP FROM THE HEAT. THE CAR WAS DRIVEN INTO A PARKING LOT WITH THE BRAKE DEPRESSED THE ENTIRE TIME, AND TURNED OFF. SO FAR, THIS HAS ONLY HAPPENED WHEN THE GAS PEDAL IS FULLY DEPRESSED. THE DEALER TOLD ME THE MAT CAUSED THIS EVEN THOUGH THE MAT IS CUT AROUND THE GAS PEDAL WITH PLENTY OF ROOM TO NOT OBSTRUCT PEDAL. THE MAT ALSO DOES NOT SLIDE OR MOVE ABOUT THE AREA. THE GMC DEALER TOLD ME THEY TOOK THE MAT OUT AND DID NOT NOTICE ANY AUTO ACCELERATION, AND THEY TOLD ME THEY WERE UNABLE TO DEPRESS THE GAS PEDAL FULL TO ATTEMPT TO RECREATE THE PROBLEM, TO NOT COMPROMISE THE SAFETY OF THE OTHER CARS NEARBY.
NHTSA ODI 11253584
TAILLIGHT IS OUT ON MY VEHICLE. THE LIGHTS ARE LED AND THE CAR IS ONLY FOUR YEARS OLD. REPLACEMENT IS $500-750 FOR A TAILLIGHT!
NHTSA ODI 11253314
RIGHT REAR LED TAIL/BRAKE LIGHT STOPPED WORKING. NOT EASILY FIXABLE. DEALERS ARE AWARE OF THE PROBLEM AND MAKE YOU PAY $700+ A PIECE FOR A WHOLE NEW ASSEMBLY. THE ISSUE APPEARS TO BE A FAULTY CIRCUIT BOARD INSIDE. THIS SHOULD BE SOMETHING THAT CAN BE TAKEN APART AND FIXED EASILY OR GM SHOULD REPLACE IT FOR FREE.
NHTSA ODI 11252998
DRIVER SIDE BREAK LIGHT WORKS INTERMITTENTLY. AFTER RESEARCHING MULTIPLE OWNERS IN SIMILAR MODEL YEARS HAVE NOTED THE ISSUE BEING INSIDE OF THE LIGHT ITSELF HAVING AN ELECTRICAL ISSUE. BUT THE DEALERSHIP WANTS $750 FOR A NEW ONE WHEN THE PROBLEM IS WIDE SPREAD, NEEDS TO BE RECALLED AND MADE RIGHT.
NHTSA ODI 11252497
MY BRAKE LIGHTS ON MY 2015 YUKON DINALI WENT OUT ON THE RIGHT SIDE. I WAS INFORMED BY THE DEALERSHIP THAT THEY ARE NOT RESPONSIBLE FOR THIS AND NONE OF MY WARRANTIES WILL COVER IT.
NHTSA ODI 11252144
I WAS INVOLVED IN A COLLISION WHERE MY VEHICLE ENDED UP IN A DITCH AND HIT A CEMENT CULVERT HEAD ON. THE STEERING WHEEL AIRBAG DIDN'T DEPLOY. ALL AIRBAGS ALONG THE SIDES OF THE VEHICLE DID, BUT NEITHER FRONT WERE ACTIVATED. ALTHOUGH I DIDN'T HAVE A PASSENGER IN THE VEHICLE, THERE WERE OTHER ITEMS IN THE SEAT THAT WERE QUITE HEAVY.
NHTSA ODI 11252186
PASSENGER SIDE REAR BRAKE LIGHT SUDDENLY STOPPED WORKING. IT IS AN LED LIGHT WHICH SHOULD NEVER HAVE TO BE REPLACED. OUR LOCAL GMC SERVICE DEPARTMENT SAID THAT IT IS THE 'DRIVER' ATTACHED TO THE LED BULB THAT IS FAULTY, BUT IT CANNOT SIMPLY BE REPLACED. THEY HAVE TO REINSTALL AN ENTIRE TAIL LIGHT WHICH APPARENTLY IS PRETTY COSTLY. I WAS QUOTED $925. AGAIN, NOTHING WRONG WITH THE LIGHT BULB ITSELF. SHOULDN'T COST $925 TO FIX.
NHTSA ODI 11251814
DRIVER'S SIDE BRAKE LIGHT NOT WORKING. APPARENTLY A COMMON PROBLEM IN THESE YEAR YUKONS, AND GMC REFUSES TO ACKNOWLEDGE THE PROBLEM. REPAIR IS EXORBITANTLY EXPENSIVE, AND GMC SHOULD PAY FOR THE REPAIRS. THE VEHICLE ONLY HAS 50,000 MILES, AND HAS NEVER BEEN IN AN ACCIDENT.
NHTSA ODI 11246280
BOTH BRAKE LIGHTS ARE OUT. IT'S BECAUSE OF A DEFECT IN DESIGN. THE METAL BRACKET THAT HOLDS THE BRAKE LIGHT LEDS IS CRACKED AND BREAKS THE CIRCUIT, THEREFORE THE LIGHTS WON'T WORK. LED LIGHTS SHOULD WORK FOR QUITE A LONG TIME. ONLY WAY TO FIX IT THROUGH THE DEALER IS TO REPLACE THE ENTIRE TAIL LIGHT ASSEMBLY TO THE TUNE OF APPROXIMATELY $1400 FOR BOTH LIGHTS. IT CAN BE REPAIRED BY CUTTING THE ASSEMBLY OPEN AND SOLDERING THE CRACK IN THE LED BRACKET. THERE ARE MANY INSTANCES OF THIS BEING REPORTED ONLINE. DEALERS DENY ENCOUNTERING THE PROBLEM. GMC IS NOT ADDRESSING THE ISSUE. THERE ARE REPORTED CASES ONLINE WHERE GMC YUKON OWNERS HAVE OF COURSE HAD THE REPAIRS MADE WITHIN WARRANTY WITH NO COST BUT AS SOON AS THE WARRANTY IS OUT AND THE PROBLEM REOCCURS, THEN THE OWNER HAS TO PAY APPROXIMATELY $700 PER LIGHT TO REPLACE THE TAIL LIGHT ASSEMBLY. THIS IS A SAFETY ISSUE, NO BRAKE LIGHTS CAN CAUSE SERIOUS WRECKS AND INJURY.
NHTSA ODI 11246197
DRIVER SIDE BRAKE LIGHT IS INTERMITTENTLY WORKING. HAVE SEEN MANY COMPLAINTS FOR THIS, SEEMS TO BE POOR DESIGN AND SHOULD BE RECALLED.
NHTSA ODI 11245991
BOTH LED TAIL LIGHT UNITS ON 2015 GMC YUKON FAILED WITHIN 6 MONTHS OF EACH OTHER. THE LED STRIPPING NO LONGER ILLUMINATES. EXACT SAME PROBLEM ON BOTH DRIVER AND PASSENGER SIDES OF VEHICLE. WAS INFORMED BY DEALERSHIP THE ONLY OPTION FOR REPAIR IS REPLACEMENT OF THE ENTIRE LIGHT AT A COST OF OVER $900 PER TAIL LIGHT.
NHTSA ODI 11246050
BRAKE LIGHTS WONT WORK ALL OF THE TIME.
NHTSA ODI 11245800
THE VEHICLE IS A 7 PASSENGER 2015 GMC YUKEN VEHICLE. BOTH REAR TAIL LIGHT ASSEMBLIES HAD TO BE REPLACED AT A COST OF $500.00 EACH. THE ENTIRE LIGHTING ASSEMBLY INCLUDING BRAKE LIGHT FAILED. THE OPERATOR IS NEVER MADE AWARE BY THE VEHICLE WARNING SYSTEM THAT THE VEHICLE'S BRAKE OR TAIL LIGHTS ARE NOT FUNCTIONING. THE ONLY WAY THE HAZARD IS IDENTIFIED IS IF ANOTHER OPERATOR NOTIFIES THE OWNER. BEING THAT THE VEHICLE IS A 7 PASSENGER AND USUALLY CARRYING CHILDREN ARE IN THE THIRD ROW THIS IS VERY DANGEROUS. A REAR END COLLISION DUE TO NO LIGHTS OR BRAKE LIGHTS IS VERY POSSIBLE. I CONTACTED GMC AND THEY ARE AWARE OF THE LED LIGHTS FAILING HOWEVER DUE TO THE FACT THAT THERE IS NO RECALL THEY WILL NOT PAY FOR THE NEW LED LIGHTS. DOES IT HAVE TO TAKE A VEHICLE BEING REAR ENDED AND A CHILD INJURED OR KILLED TO HAVE THESE VEHICLES RECALLED? THIS ISSUE IS ALL OVER THE INTERNET, ONE HAS TO TYPE GMC LED LIGHT FAILURE AND THOUSANDS OF PEOPLE ARE COMPLAINING
NHTSA ODI 11245884
TL* THE CONTACT OWNS A 2015 GMC YUKON. THE CONTACT STATED THAT THE PASSENGER SIDE BRAKE LIGHT WAS OUT. THE CONTACT ALSO STATED THAT THIS WAS THE SECOND TIME THE BRAKE LIGHTS WERE REPAIRED. THE VEHICLE WAS NOT TAKEN TO THE DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 80,000.
NHTSA ODI 11245413
Working with the data? Download all 606 complaints as CSV · fetched from NHTSA July 23, 2026