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 3 of 20

Sep 28, 2020Lights

ONE OF THE BREAK LIGHTS IS OUT. THEY HAVE MADE THE BRAKE LIGHTS IN SUCH A WAY THAT YOU CAN NO LONGER JUST REPLACE THE BULBS BUT HAVE TO REPLACE THE ENTIRE UNIT AT A COST OF $885. THERE IS A DESIGN FLAW IN THE 2015 AND 2016 MODELS THAT CAUSES THE BRAKE LIGHTS TO FAIL. GMC IS AWARE OF IT AND DID EXTEND WARRANTY COVERAGE SO THAT IF YOU ARE "LUCKY" ENOUGH TO HAVE THEM FAIL WITH LESS THAN 72,000 ON YOUR VEHICLE THEY WILL REPLACE THEM AT NO COST BUT AFTER THAT THEY WILL NOT. THEY KNOW THE PRODUCT AND IT SHOULD BE RECALLED. IT IS A SAFETY ISSUE FOR PEOPLE TO DRIVE AROUND WITHOUT BRAKE LIGHTS BECAUSE IT COSTS NEARLY $900 A PIECE TO REPLACE THEM! PERHAPS THEY SHOULDN'T HAVE TURNED WHAT USED TO BE AN CHEAP, EASY THING TO FIX ON YOUR OWN INTO A $900 REPAIR IN THE FIRST PLACE. NOW THAT THEY HAVE THEY SHOULD AT LEAST STAND BEHIND THE PRODUCT.

NHTSA ODI 11361630

Sep 27, 2020Lights

LED BRAKE LAMP WENT OUT AT 42K MILES, BUT GM REQUIRES REPLACEMENT OF ENTIRE TAIL LAMP ASSEMBLY AT EXPONENTIAL COST.

NHTSA ODI 11361373

Sep 22, 2020Lights

THE LEFT LED TAIL LIGHT WOULD GO OUT AND THEN COME BACK ON. THIS HAS BEEN HAPPENING FOR OVER A YEAR NOW. POLICE STOPPED ME TWICE BUT THANKFULLY, DID NOT GIVE ME A TICKET. HAD IT REPAIRED 2 OR 3 TIMES. IT MIGHT LAST A DAY OR TWO AND THEN GOES OUT AGAIN. APPARENTLY, THERE IS A THIN METAL PIECE THAT IS SORTED TOGETHER THAT KEEPS BREAKING. THE RIGHT ONE HAS STARTED DOING IT TOO. I WAS OVER THE MILEAGE FOR THE RECALL. CAN'T AFFORD THE $1600 OR SO IT WOULD COST FOR NEW IMPROVED TAIL LIGHTS. WHAT DOES MILEAGE HAVE TO DO WITH REPAIRING A DEFECT IN THE PRODUCTS USED IN THE TAIL LIGHT? I AM CONSTANTLY AFRAID SOMEONE WILL REAR END ME SINCE THE LIGHT DOESN'T WORK.

NHTSA ODI 11360531

Sep 14, 2020Lights

MY PASSENGER BRAKE LIGHTS STOPPED WORKING. APPARENTLY THE ONLY WAY TO FIX IS TO BUY A WHOLE NEW UNIT WHICH COSTS $300-$500.

NHTSA ODI 11354928

Sep 12, 2020Lights

REAR TAIL LAMPS BOTH SIDES ARE OUT

NHTSA ODI 11354596

Sep 8, 2020LightsBrakes

2015 REAR BRAKE LIGHTS WORK INTERMITTENTLY AND NEED TO BE REPLACED OR REPAIRED. GMC KNOW THERE ARE NUMEROUS COMPLAINTS ABOUT THIS PROBLEM AND HAVE DONE NOTHING. HUGE SAFETY ISSUE!!

NHTSA ODI 11353673

Aug 14, 2020Lights

TAIL LIGHTS GO OUT. I HAVE READ MULTIPLE POSTS ABOUT THIS ISSUE, BUT YET THERE IS NO SAFETY RECALL ISSUED FOR THIS. IT IS VERY EXPENSIVE TO REPLACE THE LIGHTS AND I AM AFRAID IF I DO, THE SAME ISSUE WILL EXIST.

NHTSA ODI 11349274

Aug 12, 2020Lights

TOOK MY CERTIFIED PRE-OWNED 2015 YUKON XL INTO DEALER WHILE STILL UNDER WARRANTY WITH INTERMITTENT FAILURE IN BOTH TAIL LAMPS (THE RED PART FOR BRAKE AND TAIL LAMP FUNCTION GOES OUT; TURN SIGNAL STILL WORKS). CONDITION WAS NOT NOTED ON MY SERVICE TICKET SINCE THE TAIL LAMPS WAS WORKING FINE AT THE TIME. WARRANTY EXPIRED, PASSENGER TAIL LAMP WENT OUT COMPLETELY AND BOTH DEALER AND A CALL TO GMC TOLD ME THAT THEY WOULDN'T ASSIST IN SPITE OF MY ATTEMPT TO ADDRESS WHILE UNDER WARRANTY. NEEDED TAIL LAMP TO PASS STATE INSPECTION AND RETURN MY WIFE AND FOUR KIDS SAFELY TO THE ROAD, SO I HAD TO PAY. AS I WALKED OUT OF THE DEALERSHIP TO RETRIEVE MY VEHICLE AFTER THE $400 PASSENGER TAIL LAMP REPLACEMENT, I FOUND THE DRIVER SIDE TAIL LAMP TO BE INOPERABLE, EVEN THOUGH IT HAD JUST PASSED THE STATE INSPECTION 20 MIN PRIOR. I SHOWED THE SERVICE ADVISOR AND SPOKE TO SERVICE MANAGER. THEY BOTH AGREED THAT THE TAIL LAMP ISSUE IS WIDE-SPREAD, UNSAFE, AND A MAJOR QUALITY ISSUE, BUT THEY WERE BOUND BY GMC POLICIES. YES, GMC EXTENDED THE WARRANTY FOR THESE TAIL LAMPS, BUT I BOUGHT MY VEHICLE AS PREOWNED CERTIFIED WITH 68K MILES. SPECIAL PART WARRANTY WENT TO 70K AND MY CERTIFIED WARRANTY WENT TO 80K. I DID MY PART AND TOOK THE VEHICLE IN AS SOON AS THE PROBLEM AROSE, YET HERE I AM HOLDING AN $800 BAG OF BROKEN TAIL LAMPS. HORRENDOUS QUALITY ISSUE THAT IS A MAJOR SAFETY ISSUE FOR THESE VEHICLES. IT IS TIME TO ISSUE THE RECALL!!!

NHTSA ODI 11348875

Jul 28, 2020Lights

TL* THE CONTACT OWNS A 2015 GMC YUKON. THE CONTACT STATED THAT WHILE DRIVING AT NIGHT, THE REAR TAIL LIGHTS FAILED TO ILLUMINATE. THE VEHICLE WAS TAKEN TO CRESTVIEW CADILLAC LOCATED AT 2700 E. GARVEY AVE S, WEST COVINA, CA 91791, (626) 966-7441, TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE REAR TAILLIGHT ASSEMBLIES NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF FAILURE. THE CONTACT WAS INFORMED THAT THE VEHICLE EXCEEDED THE MILEAGE LIMIT TO HAVE THE REPAIRS COMPLETED. THE FAILURE MILEAGE WAS 71,468.

NHTSA ODI 11341930

Jul 25, 2020Lights

HAVING ISSUES WITH THE TAIL LIGHTS EVER SINCE I GOT THE VEHICLE. FIRST IT WAS ONE LIGHT COMPLETELY OUT. THEN IT WORKED FOR AWHILE, AND NOW BOTH LIGHTS ARE INTERMITTENTLY WORKING. THE SIDE YELLOW LIGHTS WORK ON BOTH BUT THE RUNNING LIGHTS AND THE BRAKE LIGHTS ALL DONT WORK ALMOST ALL OF THE TIME. UPON READING UP ON THE INTERNET, MANY MANY SITES AS WELL AS LOCAL PEOPLE WITH THE SAME VEHICLE, ALL STATE THEY HAVE THE EXACT SAME ISSUE WITH THEIR TAIL LIGHTS. IT SEEMS TO BE A VERY COMMON ISSUE WITH THE SAME PIECES FAULTING IN ALL OF THESE YUKONS. DOESN'T MATTER IF VEHICLE IS STOPPED OR MOVING THEY HARDLY EVER WORK.

NHTSA ODI 11341461

Jul 13, 2020Lights

THIS 2015 YUKON SLT HAS 2 FAILED REAR TAILLIGHTS AND BRAKE LIGHTS. THERE IS NO INDICATION OF THIS FAILURE IN THE INSTRUMENT PANEL. MY WIFE WAS ADVISED BY TEXT FROM A FRIEND THESE LIGHTS WERE OUT. THE REPLACEMENT ASSEMBLY IS APPX $500.00 PER SIDE PLUS INSTALLATION. I WAS ADVISED THIS IS NOT A WARRANTY ITEM AND IT IS ALSO A COMMON FAILURE ON THESE VEHICLES. NOT SURE WHEN THE FAILURE OCCURRED. THE 3RD RAISED LIGHT WAS OPERATIONAL WHEN THE BRAKES WERE USED. FIRST NOTICED AROUND JULY 10, 2020. I HAVE SEVERAL CARS FROM 2002 ON WHICH WARN OF A LIGHT FAILURE. THESE LED LIGHTS WERE ADVERTISED TO LAST FOR EXTENDED PERIODS. THIS ISSUE IS DANGEROUS AND UACCEPTABLE.

NHTSA ODI 11339011

Jul 10, 2020Electrical systemLightsBrakes

MAJOR SAFETY ISSUES WITH THIS VEHICLE. ANOTHER 2015 YUKON WITH NO TAIL OR STOP LIGHTS. I'M OVER MILLAGE ON SPECIAL RECALL. THERE SHOULD BE NO TIME/MILLAGE ISSUE ON THIS. SEAT BELTS LOCK UP. BRAKES ARE EITHER GOOD OR MUSSY WHENEVER THEY WANT TO BE. HARD TO STOP THE VEHICLE. ALSO WHEN I FIRST PURCHASED THE VEHICLE IT WOULD COMPLETELY DIE (NO LIGHTS MOTOR DIED, NO POWER STEERING, NO AIR BAGS, NO RADIO NOTHING AT ALL ON THE X-WAY AT 70 MPH) AND THE DEALER COULD NOT REPAIR IT! RUST ON FRAME RAILS. (AND MORE).

NHTSA ODI 11338588

Jun 30, 2020Lights

THE REAR PASSENGER & DRIVER SIDE BRAKE LIGHTS JUST RANDOMLY STOPPED WORKING. NOT A BULB ISSUE AS IT IS THE LED PANEL OF LIGHTS. THE BACK-UP BULB STILL WORKS, BUT THE LED BRAKE LIGHTS DON'T. LED LIGHTS SHOULD LAST YEARS. DEALERSHIP SAYS IT HAPPENS A LOT TO THESE VEHICLES, AND I HAVE TO BUY A WHOLE NEW UNIT FOR EACH SIDE. THIS IS A HUGE SAFETY ISSUE - BREAK LIGHTS FAILING DUE TO POOR WIRING. AGAIN NOT A REPLACEABLE BULB ISSUE, IT IS DUE TO A WIRING ISSUE WITHIN THE LED LIGHTING UNIT ITSELF.

NHTSA ODI 11331752

Jun 30, 2020Electrical systemLightsBrakes

MY PASSENGER SIDE TAIL LIGHT ASSEMBLY NEED TO BE REPLACED AS THE BRAKE LIGHTS ARE NOT WORKING. THIS HAS BECOME A COMMON PROBLEM AS EVIDENCED BY THE NUMBER OF COMPLAINTS FILED ON YOUR SITE FOR THE SAME ISSUE. LACK OF PROPERLY FUNCTIONING TAIL LIGHTS IS A MAJOR SAFETY CONCERN AND A RECALL SHOULD BE ISSUED. *TR

NHTSA ODI 11331792

Jun 26, 2020LightsBrakes

I BOUGHT MY GMC YUKON IN MARCH OF 2019 ABOUT A WEEK LATER I HAD PEOPLE INFORM ME MY BRAKE LIGHTS WERE NOT WORKING. I WOULD CHECK AT NIGHT AND THEY WOULD. A FEW MONTHS LATER I NOTICED IT MYSELF, THEY WOULD WORK ONE MINUTE BUT NOT THE NEXT. DECEMBER OF 2019 I GET A LETTER FROM GMC STATING THEY KNOW 2015 MODEL GMC YUKON VEHICLES MAY HAVE A CONDITION WHERE THE BRAKE LIGHTS INTERMITTENTLY DO NOT ILLUMINATE. I COULD HAVE IT DONE IF MY SUV WAS NOT OVER 72K MILES BUT IT WAS WHEN I BOUGHT IT. SO THAT DOESN'T HELP ME AND THEY WANT $2K TO FIX IT. I CALLED TO SEE WHAT THEY COULD DO AND THEY TOLD ME THIS WASN'T A SAFETY ISSUE. IF THEY DO WORK AND SOMEONE DOESN'T SEE I AM BRAKING, MY KIDS OR FAMILY ARE IN THE BACK SEAT, HOW IS THAT NOT SAFETY RELATED? THEY NEED TO MAKE THIS A RECALL! *TR

NHTSA ODI 11331040

Jun 16, 2020Electrical systemLights

BOTH TAILLIGHTS INTERMITTENTLY STOP WORKING. *TR

NHTSA ODI 11329199

Jun 9, 2020Lights

MANUFACTURE DEFECTIVE , FRONT DRIVER SIDE HEADLIGHT ASSEMBLY HAS HIGH CONDENSATION WHICH CONTINUES TO GET WORSE. IT HAS CAUSED THE LIGHT TO MALFUNCTION AND NOW WILL NOT WORK. I WAS TOLD BY A MECHANIC THAT THE WHOLE HEADLIGHT ASSEMBLY HAS TO BE REPLACED BECAUSE IF NOT THE BULBS WILL CONTINUE TO BURN OUT DUE TO THE CONDENSATION. *TR

NHTSA ODI 11328062

Jun 9, 2020Lights

THE REAR TAIL LIGHT KEEPS GOING OUT. IT WAS ALREADY REPLACED ONCE AT MY DEALERSHIP. NOW THE SAME LIGHT LESS THAN 3 YEARS IS NOT FUNCTIONING. POSING A SAFETY CONCERN AS OTHER VEHICLES WOULD NOT SEE ME AT A COMPLETE STOP DUE TO MY REAR PASSENGER LIGHT NOT WORKING. THIS SHOULD BE A SAFETY RECALL. ITS A VERY COMMON THIS IS A MANUFACTURING DEFECT AND GMC SHOULD HAVE THIS FIXED ASAP. TRIED CALLING GMC AND THEY SAID THEY WOULD NOT HELP ME WITH THE REPAIR COST OF MY REAR PASSENGER TAIL LIGHT. I STATED THIS WAS A SAFETY ISSUE AND REQUIRED THEIR ATTENTION. TO NO AVAIL I WAS DENIED ANY ASSISTANCE. THE LIGHT ITSELF AT MY DEALERSHIP IS $800 NOT INCLUDING LABOR. THIS IS MY EVERY DAY FAMILY DRIVER CAR. I HAVE BEEN STOPPED BY COPS AND GIVEN WARNINGS AND BY OTHER PASSER BY'S THAT MY BRAKE LIGHT IS NOT FUNCTIONING SAFELY AND APPROPRIATELY. THIS NEEDS TO BE ESCALATED TO A SAFETY RECALL. AS THERE ARE MANY THREADS WITH OTHER GMC YUKON OWNERS HAVING THE SAME ISSUES. THANK YOU. *TR

NHTSA ODI 11327989

Jun 5, 2020Lights

RIGHT REAR TAIL LIGHT AND BRAKE LIGHT STOPPED WORKING. IT IS AN LED LIGHT AND VERY EXPENSIVE. THIS IS A SAFETY CONCERN AS LACK OF A BRAKE LIGHT ON ONE SIDE IS IN VIOLATION OF LEGAL REQUIREMENTS. LED LIGHTS SHOULD NOT QUIT FUNCTIONING AFTER 5 YEARS AND 85,000 MILES. *TR

NHTSA ODI 11327380

Jun 5, 2020LightsBrakes

TL* THE CONTACT OWNS A 2015 GMC YUKON XL. THE CONTACT STATED THAT WHILE DEPRESSING THE BRAKE PEDAL THE REAR BRAKE TAILLIGHTS FAILED TO ILLUMINATE. THE VEHICLE WAS TAKEN TO KEWEENAW BUICK GMC LOCATED AT 608 QUINCY ST, HANCOCK, MI 49930, TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE REAR BRAKE LIGHTS WERE DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT PROVIDED NO ASSISTANCE. THE FAILURE MILEAGE WAS 102,000.

NHTSA ODI 11327424

Jun 2, 2020Lights

REAR TAIL LIGHT CIRCUIT BOARDS BREAKING AND CAUSING BRAKE LIGHTS OR TAIL LIGHTS TO FAIL OR NOT WORK. *TR

NHTSA ODI 11326976

May 30, 2020LightsBrakes

THE TAIL LIGHTS STOP WORKING OR THEY FLICKER LIKE THERE'S A LOOSE CONNECTION OR SOMETHING NOT MAKING CONTACT I E SEEN OTHER COMPLAINTS ABOUT THE SAME THING AND GM NOW HAS A NEW IMPROVED TAIL LIGHT BUT THE OLD ONES ALL FAIL ALL STOP WORKING . ON THE BRAKING SYSTEM IT DOESN'T BRAKE WHEN GOING A LOW SPEED WITHOUT GIVING IT GAS I HAVE TO PUMP N PUSH THE BRAKES ALL THE WAY DOWN OR GIVE IT A LIL GAS TO BE ABLE TO STOP OR BRAKE THE LIGHTS FLICKER OR STOP WORKING WHILE DRIVING STOP ALL THE TIME THE DEALER WANTS 1500-2000 TO REPLACE EM THE LIGHTS.. THEY ARE DEFECTIVE AND SHOULD BE RECALLED THEIR BAD WORKMANSHIP SHOULDN'T BE MINE OUR ANYBODY ELSE THAT HAS THIS VEHICLE BURDEN THIS IS NOT A CHEAP VEHICLE I PAID OVER $50,000 USED FOR ABOUT A YEAR.. I NEED YOUR HELP. THE BRAKES NEED TO BE FIXED ALSO BECAUSE AT LOW SPEEDS WITH NO GAS ON THE PEDAL I CAN ROLL INTO SOMETHING HIT SOMETHING OR SOMEONE. *TR

NHTSA ODI 11326578

May 27, 2020Lights

WE PURCHASED THIS VEHICLE IN FEBRUARY 2019. LESS THAN A YEAR LATER OUR RIGHT TAIL LIGHT STARTED GOING OUT RANDOMLY. THEN IT COMPLETELY WOULD NOT WORK. WE PAY FOR AN EXTENDED WARRANTY, BUT IT DIDN'T COVER IT. THEN SHORTLY AFTER THE LEFT TAIL LIGHT DID THE SAME THING. WE CURRENTLY HAVE 84K MILES ON OUR VEHICLE. DUE TO NEGLIGENCE, AND A DISHONEST COMPANY (GMC), THIS MILITARY FAMILY IS DOWN TO 1 VEHICLE AS WE CANNOT AFFORD THE ALMOST $2K IT WILL COST TO FIX THE TAIL LIGHTS. THIS IS NOT DUE TO ANYTHING WE DID, IT HAS EVERYTHING TO DO WITH FAULT BRAKE LIGHTS THAT GMC WILL NOT FIX PAST 72K MILES WHICH IS DISGUSTING AND A SLAP IN THE FACE TO PEOPLE WHO GIVE THEM THEIR HARD EARNED MONEY. I HAVE DONE EXTENSIVE RESEARCH AND THIS IS A VERY COMMON PROBLEM IN THESE VEHICLES. THERE ARE DOZENS OF BLOGS, POSTS, WEBSITES, ETC OF CUSTOMERS COMPLAINING OF THIS ISSUE AND GMC NOT HELPING PAST 72K MILES WHICH IS A HORRIBLE EXPLANATION AND IS NOT HELPFUL TO MOST OF US. WE HAVE ALREADY HAD TO PAY OUT OF POCKET FOR THINGS THAT HAVE BROKEN (NORMAL WEAR AND TEAR WHICH IS UNDERSTANDABLE) THAT WASN'T COVERED UNDER OUR PLATINUM EXTENDED WARRANTY. HOWEVER, GMC NEEDS TO DO THE RIGHT THING ESPECIALLY FOR OUR MEN AND WOMEN IN UNIFORM, AND FIX WHAT THEIR COMPANY HAS DEEMED AS FAULTY PAST 72K MILES!!! *TR

NHTSA ODI 11326134

May 27, 2020Lights

BRAKE LIGHTS INTERMITTENTLY NOT ILLUMINATING AND GOING OUT. BOTH DRIVER AND PASSENGER BRAKE LIGHTS. *TR

NHTSA ODI 11326153

May 27, 2020LightsBrakes

THE BRAKE LIGHT IS NOT WORKING. ALL OTHER FUNCTIONS IN THE ASSEMBLY ARE FINE. REVERSE AND TURN SIGNAL, NO BRAKE INDICATION. IT DOES NOT ACTIVATE A WARNING ON THE DASH FOR THE BRAKE LIGHT FAILURE. THIS HAPPENS 24/7... THIS SHOULD NOT OCCUR WITH AN ITEM PRICED AT OVER $700.00 TO REPLACE. *TR

NHTSA ODI 11326255

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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 →