Home · 2015 GMC Yukon Denali Xl · Complaints

What 606 owners told NHTSA about the 2015 GMC Yukon Denali Xl

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 (606)Crash / fire / injury (15)Lights (313)Electrical system (94)Brakes (92)Transmission & drivetrain (58)Steering (37)Engine (33)Suspension (17)Body & structure (16)Fuel system (14)Visibility & wipers (8)

Newest first · 606 complaints · page 14 of 25

Apr 22, 2019Lights

I PURCHASED A 2015 GMC YUKON AND AM THE SECOND OWNER. LAST WEEK, MY DRIVER'S SIDE BRAKE LIGHT WENT OUT. I NOTICED IT WHILE DRIVING WHEN SOMEONE BEHIND ME TOLD ME IT WAS OUT. SIX MONTHS AGO, I REPLACED THE PASSENGER SIDE BRAKE LIGHT WHICH COST $875 TO FIX (THE ENTIRE LIGHT ASSEMBLY MUST BE REPLACED, NOT JUST A BULB). A LITTLE RESEARCH ONLINE HAS PROVEN THAT THIS SEEMS TO BE A COMMON PROBLEM FOR MANY OTHER GMC YUKON OWNERS. LED LIGHTS ARE SUPPOSED TO LAST THE LIFETIME OF THE VEHICLE, BUT IT WOULD APPEAR THAT SOMETHING ABOUT THE PRODUCT IS DEFECTIVE. THIS IS SIMPLY OUTRAGEOUS AND GMC KNOWS THAT IT IS A PROBLEM.

NHTSA ODI 11202954

Apr 22, 2019SteeringElectrical system

TL* THE CONTACT OWNS A 2015 GMC YUKON. SHORTLY AFTER THE CONTACT PURCHASED THE VEHICLE, THERE WAS AN ELECTRICAL FAILURE AND THE RADIO FAILED TO FUNCTION. THE DEALER (PENSKE BUICK GMC OF CERRITOS, 17720 CRUSADER AVE, CERRITOS, CA 90703, (877) 886-6265) REPLACED THE RADIO WITH A WARRANTY; HOWEVER, THE FAILURE CONTINUED. ALSO, THE VENT CONTROLS FAILED FOR THE AIR CONDITIONER AND HEATER. WHILE MAKING A LEFT TURN AND A U TURN, THE STEERING WHEEL SEIZED SEVERAL TIMES. THE DEALER INDICATED THAT THEY SERVICED THE VEHICLE PER NHTSA CAMPAIGN NUMBER: 18V586000 (STEERING) AND WAS AWARE THAT THE RECALL REMEDY FAILED. THE CONDITION PROGRESSED TO THE POINT THAT THE VEHICLE BEGAN TO STALL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE MULTIPLE FAILURES. THE FAILURE MILEAGE WAS NOT AVAILABLE.

NHTSA ODI 11202972

Apr 21, 2019Lights

BRAKE LED LIGHTS GO OUT AND ON, SOMETIMES ONE SIDE WORKS, THEN OTHER TIMES THE OTHER SIDE GOES OUT, AND SOMETIMES BOTH BRAKE LIGHTS DO NOT WORK. SOMETIMES BY BANGING THE COVER, IT TURNS ON AND WORKS, BUT THEN THEY GO OUT.

NHTSA ODI 11202715

Apr 19, 2019Lights

ALL BREAK LIGHTS STOPPED WORKING AT THE SAME TIME ON BOTH SIDES OF VEHICLE. TURN SIGNAL, BACK UP LIGHTS, BLINKERS ALL STILL WORK. I WAS TOLD THE ENTIRE BREAK LIGHT HAD TO BE REPLACED FOR A COST OF APX 2K. IT SEEMS THAT THIS IS A VERY COMMON PROBLEM AND THE COST OF REPAIR IS ASTRONOMICAL.

NHTSA ODI 11202543

Apr 19, 2019Lights

REAR LIGHTS, TAIL LIGHTS STOPPED WORKING. YOU CANT JUST CHANGE THE BULB. BEING LEDS THE WHOLE PIECE HAS TO BE CHANGED. APPARENTLY THIS IS A KNOWN ISSUE AND GM KNOWS ABOUT IT, YET THERES BEEN NO RECALL??

NHTSA ODI 11202551

Apr 18, 2019Lights

LEFT REAR TAIL LIGHT (LED) AND BREAK LIGHT FAILURE. NOT A BULB BUT THE CIRCUIT FAILED. BUMPER TO BUMPER WARRANTY WOULD NOT COVER BULBS, BUT THIS WAS NOT A BULB FAILURE! I WOULD LIKE TO APPEAL THIS DENIAL

NHTSA ODI 11197146

Apr 18, 2019Lights

RIGHT SIDE /PASSENGER BRAKE LIGHTS FAILED. DEALER SAYS IT'S A CRACKED ELECTRICAL BOARD. THEY SAID THAT THEY HAVE SEEN TONS OF THESE AND IT'S NOT UNDER WARRANTY. $1300 DEALER REPAIR ESTIMATE. THIS SHOULD BE A RECALL ISSUE.

NHTSA ODI 11197205

Apr 16, 2019Brakes

BRAKES GET HARD WHEN TOWING MY BOAT AND SOMETIMES IN STOP AND GO TRAFFIC.

NHTSA ODI 11196732

Apr 15, 2019Brakes

BRAKE PEDAL GETS HARD IN SLOW MOVING AND STOP & GO DRIVING CAUSING VEHICLE TO BE HARD TO STOP WITH NO BREAK POWER. THIS SITUATION GETS WORSE WHEN TOWING A TRAILER IN TRAFFIC AN DOWN HILL WHERE YOU NEED THE BRAKE POWER

NHTSA ODI 11196188

Apr 14, 2019Lights

I HAVE REPLACED THE PASSENGER SIDE TAILIGHT AND NOW THE DRIVER SIDE TAILIGHT IS NOT WORKING. THE TURN SIGNAL AND REVERSE LIGHT WORK BUT THE RED PART OF THE LIGHT WILL WORK AND THEN GO OUT.

NHTSA ODI 11196123

Apr 13, 2019Lights

REAR PARKING/BRAKE LIGHT WENT OUT. DEALER SAYS THE FIX IS $800 PLUS LABOR TO FIX.

NHTSA ODI 11196009

Apr 12, 2019LightsSpeed controlBrakes

MY GMC YOUKON DENALI HAS BRAKE LIGHTS THAT ARE KNOWN TO DEALERS TO FAIL. YET THERE IS NOT A RECALL. I LOOKED ON THE INTER NET AND SAW THAT THERE HAS BEEN THIS PROBLEM SINCE 2015 TO 2018. BECAUSE OF A JOINT THAT WAS SOLDERED INSTEAD OF A WIRE. I KNOW WHY WHEN I BROUGHT IT IN FOR RECALL THAT THE SERVICE MAN LOOKED AT MY STOP LIGHTS.

NHTSA ODI 11195738

Apr 8, 2019Lights

TAILLIGHTS WORKING INTERMITTENT. THIS IS A SAFETY ISSUE. I HAVE GOOGLE AND THERE OVER A 100 COMPLAINTS ON CAR GURUS WITH THE SAME PROBLEM. THIS IS A GMC SAFETY PROBLEM. THESE YUKON'S ARE EXPENSE AND I SHOULD FEEL SAFE WHILE DRIVING IT. TAKING IT TO THE DEALERSHIP THIS MORNING. I AM ASKING A CUSTOMER OF GMC--- DO THE RIGHT THING AND LOOK INTO THIS AS SOMEONE IS GOING TO GET KILLED - NO TAILLIGHTS COULD BE A LIFE THREATING SAFETY ISSUE. GMC DO THE RIGHT THING. LOOK AT ALL OF THE COMPLAINTS WITH THE EXACT SAME ISSUE

NHTSA ODI 11194525

Apr 6, 2019Lights

THE LED BRAKE LIGHT WENT OUT THERE SEEMS TOO BE FAULTY ELECTRICAL AND COMPANY KNOWS IT

NHTSA ODI 11194342

Apr 5, 2019Lights

THE REAR DRIVER SIDE TAILLIGHT DOES NOT WORK. TOOK IT TO THE DEALERSHIP AND THEY SAID IT WAS A PROBLEM THEY SAW FREQUENTLY, TO JUST HIT THE LIGHT AND IT MIGHT START WORKING. OTHERWISE IT WAS A 800 DOLLAR LIGHT TO REPLACE....IF IT IS A FREQUENT PROBLEM GMC SHOULD BE FIXING IT... ARE THEY GOING TO PAY FOR A TICKET IF I GET PULLED OVER OR WORSE SOMEONE CRASHES INTO ME? THE PROBLEM COMES AND GOES BUT HAS SEEMED TO GET WORSE AND IS NOT SAFE OR LEGAL TO DRIVE WITH THE LIGHT HOW IT IS. BAD DESIGN OF THE LIGHT. AND FROM WHAT I HAVE SEEN ONLINE I AM NOT THE ONLY ONE. THERE A WHOLE FORUMS THAT PEOPLE HAVE THE SAME ISSUE.

NHTSA ODI 11194118

Apr 5, 2019Transmission & drivetrain

THE 8 SPEED AUTOMATIC TRANSMISSION ON MY GMC YUKON DENALI HAS A SLIPPAGE ISSUE THAT HAS PERSISTED IN OUR VEHICLE FOR A WHILE UNRESOLVED. GM HAS REPLACED TORQUE CONVERTER, MODULE AND NOW THEY ARE CLAIMING THROUGH DEALER THAT THE ISSUE RESIDES WITH AT FLUID. THIS SLIPPAGE IS BAD BECAUSE CAR JERKS AND SOMETIMES HARD. THIS ISSUE NEEDS TO BE ADDRESSED BY GM AS THEY KNOW THEY HAVE ISSUES WITH THIS 8 SPEED AT. THE ISSUE HAPPENS AT STOPS AND AT SLOW SPEEDS.

NHTSA ODI 11194224

Apr 4, 2019Brakes

BRAKES ARE UNRESPONSIVE AND STUFF BRAKE PEDALS AT LOW SPEEDS. WHILE DRIVING AT VERY LOW SPEEDS THE BRAKES WILL NOT ENGAGE AND STOP THE VEHICLE. I WAS PULLING INTO A PARKING STOP AND THE BRAKES WOULD NOT RESPOND UNLESS I STOMPED ON THEM GOING LESS THAN 5MPH. IT HAPPENS OFTEN WITH THE SAME SCENARIO. DRIVING AT A VERY LOW RATE OF SPEED AND MY VEHICLE WILL NOT STOP WHEN THE BRAKES ARE PRESSED.

NHTSA ODI 11193911

Apr 3, 2019Lights

REAR BREAK TAILIGHTS DO NOT WORK AT ALL TIMES. MOST OF THE TIME THEY REQUIRE TAPPING ON THE TAILLIGHT TO GET THEM TO LIGHT THE TAIL LIGHT. NOT A BULB ISSUE AND SEEMS TO BE A COMMON PROBLEM WITH ALL YUKON'S OF THIS MAKE. VERY FRUSTRATING TO HAVE THEM WORK INCONSISTENTLY . SOMETIMES ONE LIGHT OUT AND SOMETIMES BOTH.

NHTSA ODI 11193641

Apr 3, 2019Electrical systemLightsBrakes

WITHIN THE LAST YEAR ON MY 2015 MY AC COMPRESSOR HAS GONE OUT, RADIO SCREEN QUIT WORKING, BRAKE PUMP/BOOSTER FAULTY, AND NOW REAR BRAKE LIGHT QUIT WORKING. ALL SEEM TO BE VERY COMMON IN THIS YEAR MODEL. MY CAR HAS LESS THAN 70000 MILES ON IT!! GM IS EITHER DOING A CRAPPY JOB ON THEIR $60000 VEHICLES OR A RECALL NEEDS TO BE DONE.

NHTSA ODI 11193726

Apr 2, 2019Engine

2015 GMC YUKON. CONSUMER WRITES IN REGARDS TO ENGINE FAILURE WHILE DRIVING. *LD *TR

NHTSA ODI 11191920

Apr 1, 2019Electrical systemLights

PASSENGER SIDE BRAKE AND TAIL LED STRIP LIGHT SHORT AND GOES OUT AND STOPS WORKING. WILL WORK SOMETIMES WHEN BACK HATCH SHUTS AND JARS IT OR I HIT A BUMP. DEALERSHIP SAYS LIGHT IT OUT AND NEEDS REPLACING. NOT SURE WHY THE LIGHT STILL COMES ON WHEN JARRED. HAVE EXTENDED WARRANTY THAT WAS SUPPOSED TO COVER ALL THIS ESPECIALLY BEING ELECTRICAL. SEEMS TO BE ON GOING PROBLEM

NHTSA ODI 11192871

Apr 1, 2019Lights

DRIVER SIDE TAILLIGHTS ARE BROKEN. PASSENGER SIDE TAILLIGHTS ARE FAILING NOW. NEITHER TAILLIGHTS NOR BREAK LIGHTS ARE FUNCTIONING PROPERLY ON THE DRIVER SIDE AND THE TAIL LIGHTS ARE STARTING TO FAIL ON THE PASSENGER SIDE

NHTSA ODI 11193128

Mar 31, 2019Lights

PASSENGER SIDE REAR TAIL LIGHT/ BRAKE LIGHT INOPERABLE. PROBLEM OCCURRED AT 44,580 MILES.

NHTSA ODI 11192745

Mar 31, 2019LightsFuel system

I HAVE 47,000 MILES ON MY YUKON SLT. I REPLACED THE HIGH PRESSURE FUEL PUMP ABOUT TWO WEEKS AGO FOR A PRICE OF $1,400. NOW MY DRIVER SIDE BRAKE LIGHT WENT OUT. DEALER IS TELLING ME NEARLY $800 TO FIX. I PAID GOOD MONEY FOR THIS CAR AND HAVE HAD NOTHING BUT PROBLEMS.

NHTSA ODI 11192802

Mar 28, 2019Lights

LED BRAKE LIGHT WORKS INTERMITTENTLY.

NHTSA ODI 11192241

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Working with the data? Download all 606 complaints as CSV · fetched from NHTSA July 23, 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 verdict →