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)

Newest first · 977 complaints · page 24 of 40

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, 2019Electrical systemLights

APPROXIMATELY 51,000 MILES ON VEHICLE: REAR PASSENGER TAIL LIGHT IS INOP. WE WERE ON A TRIP WHEN WE NOTICED, IF YOU TAP THE SIDE OF IT THE LIGHT WOULD COME ON FOR JUST A SECOND. LED STRIP FOR BRAKE LIGHT IS DEFECTIVE. REPLACEMENT COST IS ABOUT $800 DOLLARS. LOTS OF COMPLAINTS AND ONLINE FORUMS REGARDING THIS ISSUE. GMC REALLY NEED TO RESOLVE THIS ISSSUE. THESE RIGS COST WAY TO MUCH FOR THAT POOR QUALITY!

NHTSA ODI 11192777

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

THERE IS A FLAW IN THE LED STRIP OF THE REAR TAIL LIGHTS. THE LED STRIP BREAKS OVER TIME DISABLING THE TAIL LIGHTS. THE TAIL LIGHT ASSEMBLY IS SEALED AND MUST EITHER BE REPLACED OR BROKEN INTO SO A JUMPER CAN BE SOLDERED ACROSS THE BREAK TO REPAIR THE TAIL LIGHT.

NHTSA ODI 11192167

Mar 28, 2019Lights

LED BRAKE LIGHT WORKS INTERMITTENTLY.

NHTSA ODI 11192241

Mar 28, 2019Lights

LEFT BACK TAILLIGHT DEFECTIVE. IT WAS REPLACED BY GMC IN 2017 UNDER WARRANTY (BELOW 36,000 MILES) NOW AT 44000 IT FAILED AGAIN. LOTS AND LOTS OF PEOPLE POSTING THE SAME ISSUE ONLINE. BAD DESIGN OR JUST PLAIN BAD QUALITY. SEE ONE OF THE POSTS HERE: HTTPS://WWW.CARGURUS.COM/CARS/DISCUSSION-T53845_DS768963 SEE VIDEO HERE EXPLAINING ISSUE ON HOW INTERNAL BOARD CRACKS AND CAUSES THE ISSUE: HTTPS://WWW.YOUTUBE.COM/WATCH?V=NNLDJPYMDZC ANOTHER VIDEO: HTTPS://WWW.YOUTUBE.COM/WATCH?V=2LJXUQME3TU DEALER CHARGES $844 PARTS AND LABOR TO REPLACE, THIS IS A KNOWN ISSUE FOR GMC, THIS NEEDS TO BE A RECALL. THE ISSUE IS SO WELL KNOW THAT THERE ARE PEOPLE ON EBAY MAKING A BUSINESS TO REPAIR IT. A SIMPLE TYPE IN EBAY YUKON TAIL LIGHT WILL SHOW MULTIPLE LINKS.

NHTSA ODI 11192297

Mar 27, 2019Transmission & drivetrainEngine

SUV SHUTTERING AND SHAKING WHILE IN MOTION ON CITY STREETS AND HIGHWAY

NHTSA ODI 11191809

Mar 26, 2019Electrical systemLights

THE PASSENGER SIDE TAIL LIGHT IS INTERMITTENT THE DEALER SAID THAT IT WOULD COST $875.00 FOR THE PART TO FIX. HE SAID THAT IT WAS A BAD MANUFACTURING JOB. AND HE ALSO SAID THAT THERE WERE A LOT OF SUV'S COMING IN WITH THE SAME PROBLEM. THANK YOU

NHTSA ODI 11191686

Mar 26, 2019Steering

TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING VARIOUS SPEEDS, THE STEERING LOST POWER WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE BEGAN AFTER BEING REPAIRED PER NHTSA CAMPAIGN NUMBER: 18V586000 (STEERING). THE VEHICLE WAS TAKEN TO BRUCE LOWRIE CHEVROLET (817-264-7776, LOCATED AT 711 SW LOOP 820, FORT WORTH, TX 76134) WHERE THE RECALL REPAIR WAS PERFORMED. THE TECHNICIAN RE-FLASHED THE COMPUTER AND STATED THAT THE RECALL WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT BACK TO THE SAME DEALER. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 51,000.

NHTSA ODI 11191711

Mar 26, 2019LightsBrakes

INTERMITTENT BRAKE LIGHT ACTIVATION ON BOTH LEFT AND RIGHT. IT HAPPENS STOPPED AND IN MOTION. VERY DANGEROUS! IT IS A KNOWN ISSUE WITH BROKEN CONTACTS INSIDE A SEALED HOUSING. THE ISSUE IS POSTED ALL OVER THE FORUMS BUT GMC REFUSES RESPONSIBILIY.

NHTSA ODI 11191713

Mar 26, 2019Electrical system

HEADLIGHTS AND BRAKE LIGHTS QUIT WORKING

NHTSA ODI 11191726

Mar 25, 2019Lights

TURN SIGNAL FAILURE ON THE PASSENGER SIDE. CAUSE BY CONDENSATION IN THE HEADLAMP ASSEMBLY. COST $1300 TO REPLACE AND GET A NEW TURN SIGNAL. A TURN SIGNAL IS $5, BUT THEN INTEGRATED LEDS COST $1300 BECAUSE THEY HAVE TO REPLACE THE WHOLE ASSEMBLY.

NHTSA ODI 11191396

Mar 24, 2019Lights

BRAKE LIGHT IS NOT WORKING ON PASSENGER SIDE. WENT TO REPLACE BULB AND FOUND OUT THAT ONE HAS TO REPLACE THE ENTIRE TAILLIGHT ENSEMBLE WHICH IS $700-800. IT IS SAD THAT SOMETHING IMPORTANT TO SAFETY LIKE A BRAKE LIGHT HAS TO COST THAT MUCH TO REPLACE. I RESEARCHED AND FOUND THIS TENDS TO BE A COMMON PROBLEM. SO MUCH FOR LED LIGHTS--THIS IS ALSO POOR ENGINEERING!

NHTSA ODI 11191230

Mar 23, 2019Electrical systemLights

REAR DRIVE SIDE BREAK LIGHT IS OUT BECAUSE OF POOR CONSTRUCTION.

NHTSA ODI 11191107

Mar 19, 2019Lights

LED TAIL LIGHT AND BRAKE LIGHT STOPPED WORKING AT APPROX. 50,000 MILES.

NHTSA ODI 11189882

Mar 19, 2019Lights

TL* THE CONTACT OWNS A 2015 GMC YUKON. THE CONTACT STATED THAT THE LED TAIL LIGHTS BURNED OUT PREMATURELY. THE CONTACT CALLED [XXX] AT 817-264-7746 (LOCATED AT 501 TX-114, GRAPEVINE, TX 76051) AND WAS INFORMED THAT THE TAIL LIGHT WAS A SEALED UNIT THAT NEEDED TO BE REPLACED AS A WHOLE. THE CONTACT STATED THAT THE REPAIR WAS TOO COSTLY FOR A SIMPLE BURNED OUT BULB. THE CONTACT CALLED IT A DESIGN FLAW. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE, STATED THAT NOTHING COULD BE DONE, AND OFFERED THE CONTACT A SMALL DISCOUNT FOR AN OIL CHANGE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 66,000. THE VIN WAS NOT PROVIDED. *DT INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI 11190075

Mar 19, 2019SteeringTransmission & drivetrain

I WAS DRIVING UP NORTH IN 4WHEEL DRIVE AND TRANSMISSION CAM OUT OF GEAR I STOPPED THE VECHILE AND RESTARTED NOW THE TRANSMISSION DOES NOT SHIFT PROPERLY AND STEERING IS HARD TO STEER AND IT GOES IN AND OUT

NHTSA ODI 11190131

Mar 17, 2019Brakes

POWER BREAKING FAILS WHEN DRIVING AT LOW SPEEDS, BRAKE PEDAL STIFF AND HARD TO PUSH DOWN TO STOP VEHICLE IN BOTH FORWARD AND REVERSE DIRECTIONS WHEN INCHING FORWARD AT A STOP LIGHT/SIGN, OR PARKING IN A PARKING LOT IN FORWARD AND REVERSE CAR KEEPS MOVING. STOPPING REQUIRED VERY HARD PUSH ON THE STIFF BRAKE PEDAL.. BRAKING AT HIGHER SPEEDS LESS AFFECTED BUT SUDDEN STOPS CAN REQUIRE MORE FORCE THAN USUAL AS THE CAR SLOWS DOWN. PROBLEM BEGAN DECEMBER 2017 RARELY AND INTERMITTENTLY, AND INCREASED TO ALL THE TIME BY FEBRUARY 2019 AT LOW SPEEDS THE POWER BRAKE DID NOT WORK AND REQUIRED MUCH FORCE ON THE BRAKE PEDAL TO STOP VEHICLE EVERY TIME. BRAKE FLUID WAS FINE AND SO WAS BRAKE PADS. GM DEALERSHIP VISIT SHOWED A FAILURE OF THE VACUUM PUMP FOR BRAKE LINE AND THEY INSTALLED A REDESIGNED PUMP WHICH SHOWS THAT THE ORIGINAL HAS FAULTY DESIGN. THEY ALSO REQUIRED A BELT THAT OPERATES PUMP TO BE REPLACED AS WELL. THIS SEEMS TO HAVE FIXED THE PROBLEM FOR NOW BUT THIS REPAIR HAS A TWO YEAR GUARANTEE. PRICE FOR ME TO FIX OVER $881+TAX.

NHTSA ODI 11187365

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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 →