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

ON MULTIPLE OCCASIONS SPECIFICALLY WHILE TRAVELING AT LOW SPEED RATE SUCH AS SLOW MOVING TRAFFIC OR PULLING IN OR BACKING OUT OF PARKING SPACE. THE BRAKES BECOME HARD TO PUSH AND THE BRAKES DO NOT ENGAGE. YOU MUST PUSH THE BRAKES VERY HARD TO STOP. WE TOOK TO THE GM SERVICE AT OUR DEALERSHIP AND A BRAKE VACUUM PUMP WAS REPLACED. THE NEXT DAY WE WERE DRIVING THE VEHICLE AND THE BRAKES FAILED TO STOP. THANKFULLY WE WERE IN A PARKING LOT AND WERE ABLE TO STOP AGAINST BUMPER STOP. WE CALLED THE GM SERVICE DEALERSHIP AND THEY ARRANGED FOR A TOW. THIS IS EXTREMELY DANGEROUS SITUATION.

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WE PURCHASED THIS VEHICLE ON 11.21.18 AND THE BRAKE LIGHTS INTERMITTENTLY DON'T WORK. THEY WERE WORKING AT THE TIME WE DROVE IT OFF THE LOT. THE BULBS WERE TESTED BY OUR MECHANIC AND HE STATED THAT THE GMC YUKON OF THIS YEAR ARE KNOWN TO HAVE MAJOR PROBLEMS WITH THE BRAKE LIGHT HOUSING UNITS ON THE REAR OF THE VEHICLE. THE ELECTRICAL BOARD ASSOCIATED WITH IT HAS ISSUES THE MECHANIC STATED. I REVIEWED MANY POST ONLINE AND WONDER WHY THIS ISN'T A REQUIRED RECALL. TO ME THIS IS A MAJOR SAFETY CONCERN AND WE BOUGHT THIS VEHICLE TO TRANSPORT MY KIDS AND WIFE. I'D LIKE THIS TO BE CONSIDERED A RECALL IMMEDIATELY.

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AT SLOWER SPEED, BRAKES BECOME STIFF AND WAS UNABLE TO STOP VEHICLE. THE BRAKES DID NOT ENGAGE ALL THE WAY TO THE FLOOR AS NORMAL AND INSTEAD STOPPED ABOUT 1/4 OF THE WAY AND WAS SOLID EVEN WHEN PRESSING BOTH FEET ON THE BRAKE. ALMOST REAR-ENDED THE VEHICLE IN FRONT OF ME BUT SINCE I WAS AT SUCH A SLOW RATE OF SPEED I WAS ABLE TO ROLL A FEW FEET AND THE VEHICLE STOPPED. I HAD TO TURN THE VEHICLE COMPLETELY OFF AND START IT BACK UP AND IT SEEMED TO WORK FINE BUT THE NEXT TIME I WAS IN THE VEHICLE AT THE SLOW RATE OF SPEED, THE BRAKES THEN AGAIN WERE VERY HARD TO PRESS. I DO NOT FEEL COMFORTABLE DRIVING THE VEHICLE UNTIL THIS PROBLEM IS TAKEN CARE OF. I CONTACTED THE LOCAL DEALER AND THEY TOLD ME IT WOULD BE 5 DAYS UNTIL THEY COULD GET TO IT - DISAPPOINTED IN THAT CONSIDERING THE SEVERITY OF THE ISSUE.

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TL* THE CONTACT OWNS A 2015 GMC YUKON XL. WHILE DRIVING 5 MPH AND LOW SPEEDS, THE BRAKES SEIZED. WHEN DRIVING AT HIGHER SPEEDS, THE BRAKES PERFORMED PROPERLY. THE CONTACT WOULD HAVE TO PLACE THE VEHICLE IN NEUTRAL AND REV THE ENGINE FOR THE BRAKES TO WORK. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO SEILVEIRA BUICK GMC (985 HEALDSBURG AVE, HEALDSBURG, CA 95448, (866) 572-7256) WHERE IT WAS DIAGNOSED THAT A NEW VACUUM PUMP NEEDED TO BE INSTALLED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 105,000.

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WHILE IN MOTION THE BRAKES WENT OUT COMPLETELY IN JULY 2015. THEN WHILE DRIVING DOWN THE INTERSTATE AT 75 MPH THE BRAKES WENT OUT COMPLETELY IN 2018. BOTH TIMES I WAS CHARGED A DEDUCTIBLE. BOTH TIMES THE COMPLETE BRAKE SYSTEM WAS COMPLETELY REPLACED BY A DEALERSHIP. AFTER THE SECOND INCIDENT I CONTACTED GMC. AFTER NUMEROUS PHONE CALLS THE OFFERED ME $2000 TOWARDS A NEW VEHICLE. I WAS VERY UPSET WITH THEM AND THREATENED TO GET A LAWYER IF I WAS HURT IN THIS VEHICLE OR HURT OTHERS IN THE FUTURE. IT WAS A TERRIFYING EXPERIENCE AND I FELT LIKE I DESERVED MORE. THEY WOULDN'T EVEN PAY FOR THE RENT A CAR I HAD TO USE ON MY VACATION WHILE THE BRAKE SYSTEM WAS REPLACED. I PAID $70,0000 FOR THIS CAR, BUT DON'T WANT TO FEAR LOOSING BRAKES EVER AGAIN!

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WHILE OPERATING THE VEHICLE AND ATTEMPTING A STOP THE BRAKING BECAME POOR AND I HAD TO DEPRESS THE BRAKE PEDAL AS HARD AS I COULD. HOWEVER, EVEN AFTER THAT THE VEHICLE DID NOT STOP RIGHT AWAY AND TOOK MORE DISTANCE TO COME TO A FULL STOP. THE BRAKE FELT "SOFT" AND NOT LIKE IT USUALLY DOES. INTERESTINGLY...THE BRAKE WOULD SEEM TO WORK AGAIN IMMEDIATELY AFTER THE INCIDENT. I'VE HAD PROBABLY 3 OR 4 INCIDENTS, OVER THE PAST YEAR, WHERE THIS HAS HAPPENED. NONE OF THE INCIDENTS HAVE RESULTED IN ANY TRAFFIC INCIDENTS, BUT ALL HAVE REQUIRED MORE STOPPING DISTANCE THAN NORMAL. ALL OF THE INCIDENTS HAVE TYPICALLY OCCURRED AT LOWER SPEEDS (LESS THAN 40 MPH).

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WHEN MOVING IN A PARKING SPOT THE BRAKE PEDAL BECAME HARD AS IF IT LOST POWER BRAKES, BUT THEN RETURNED. A FEW DAYS LATER ON THE FREEWAY TRAFFIC STOPPED IN FRONT OF US AND IT HAPPENED AGAIN. THIS CAUSED US TO NEED TO SWERVE TO AVOID CAUSING AN ACCIDENT UNTIL WE WERE ABLE TO COME TO A STOP. AFTER SEVERAL MILES THE POWER BRAKES HAVE NOT RETURNED. THERE IS OIL IN THE VACUUM LINE AT THE BOOSTER AND GAS MILEAGE YA BEEN POOR THE PAST FEW WEEKS PRIOR TO THIS. IT ALL POINTS TO A FAULTY VACUUM PUMP. 121,000 MILES ON THE TRUCK.

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TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING AT LOW SPEEDS, THE BRAKES FAILED TO ENGAGE. THE BRAKE PEDAL BECAME EXTREMELY STIFF AND THE EMERGENCY BRAKE HAD TO BE APPLIED TO STOP THE VEHICLE. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED AND REFERRED THE CONTACT TO NHTSA. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 47,200.

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WHEN DRIVING IN STOP AND GO TRAFFIC OR CITY DRIVING THE BRAKE PEDAL WILL BECOME HARD TO PUSH AND LITTLE TO NO BRAKING POWER. BRAKES ARE FINE AT HIGH WAY SPEEDS.

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BRAKE VACUUM PUMP FAILED. WHILE TOWING A BOAT AND BACKING UP MY BRAKE PEDAL WENT HARD WHEN I PUSHED DOWN AND MY VEHICLE WOULD NOT STOP. I WAS ABLE TO STEER OUT OF DANGER AND EVENTUALLY COME TO A STOP.

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MY PASSENGER FRONT LIGHT COVER IS ACQUIRING CONDENSATION WHICH MAKES THE LIGHTS GO OFF AND ON, AND MY DRIVER SIDE BRAKE LIGHT WORKS ONLY INTERMITTENTLY. MY INSURANCE OR WARRANTY WON'T COVER ANYTHING TO FIX THESE LIGHT ISSUES. THESE ISSUES STARTED ABOUT MAY 2018. WE WEREN'T IN A WRECK OR SUSTAINED ANY DAMAGES THAT WOULD HAVE LED TO THESE ISSUES. I HAVE TALKED TO TWO OTHER OWNERS OF THE SAME MAKE/MODEL/YEAR VEHICLE AND WE ALL HAVE SAFETY ISSUES THAT ARE NOT BEING RESOLVED BY GM VWARRANTIES. I WANT TO SEE GM ISSUE RECALLS AND ACCEPT COMPLETE FINANCIAL RESPONSIBILITY FOR REPAIRS. I WOULD ALSO LIKE TO SEE THE REAR LIGHTING SYSTEM REDESIGNED SO THE COMPONENTS ARE NOT DEPENDENT ON EACH OTHER. MY BRAKE LIGHT WENT OUT AND INSTEAD OF BEING ABLE TO REPLACE A BULB THE ENTIRE UNIT HAS TO BE REPLACED AT $1700.00 THAT WE JUST SIMPLY DO NOT HAVE.

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DRIVING AT A LOW SPEED THROUGH A DRIVE THROUGH AND MY BRAKES FAILED WHEN I TRIED TO STOP BEFORE PULLING OUT ONTO A CROSS STREET. PEDAL LOCKED, AND VEHICLE CONTINUED TO ROLL. AFTER STEPPING ON THE BRAKES A FEW TIMES THEY ENGAGED AGAIN. SAME PROBLEM HAPPENED AGAIN WHEN I WAS LEAVING A PARKING LOT, ONLY THIS TIME THE BRAKES WOULD NOT ENGAGE AFTER SEVERAL ATTEMPTS. I COASTED INTO A POTTED DECORATIVE TREE THAT STOPPED ME, SHIFTED INTO NEUTRAL AND BACK INTO DRIVE AND THEY BEGAN WORKING AGAIN. NO WARNING SIGNALS APPEARED ON DASH, AND BRAKES AND BRAKE FLUID HAVE BEEN CHECKED AND ALL ARE SATISFACTORY.

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THE PASSENGER TAIL LIGHT IS WORKING INTERMITTENTLY. THE DEALER SAID THAT THE ONLY FIX IS TO BUY A NEW BRAKE LIGHT UNIT @ $650. AFTER SEARCHING ON LINE, OTHER OPTIONS ARE TO SEND BRAKE LIGHT UNIT OFF FOR REPAIR, OR PURCHASE AFTER MARKET BRAKE LIGHT UNIT. AS MANY PEOPLE THAT ARE HAVING THIS SAME ISSUE, IT SURE SEEMS LIKE GMC WOULD CORRECT THIS FAULTY BRAKE LIGHT.

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BRAKE PEDAL SUDDENLY GOT ROCK HARD WHEN I WAS TRYING TO SLOW DOWN, OUR TRUCK JUST KEPT GOING FORWARD, I WAS HELPLESS IN THAT SITUATION AND REALLY THOUGHT THAT ACCIDENT IS UNAVOIDABLE BECAUSE I WAS GETTING CLOSER AND CLOSER TO ANOTHER VEHICLE, AFTER PRESSING BRAKE PEDAL MANY MORE TIMES I WAS ABLE TO STOP OUR YUKON LITERALLY ONE INCH FROM A CAR IN FRONT OF ME

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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.

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MY RIGHT SIDE BRAKE ASSEMBLY SEEMS TO ONLY WORK WHEN IT WANTS TOO. WORKS ON COLD MORNINGS, BUT AS THE DAY GETS WARMER THE LIGHT ASSEMBLY DOESN'T WORK ANYMORE. NO LIGHTS, OR BRAKE LIGHTS.

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BRAKE LIGHTS ARE FAILING INTERMITTENTLY. DEALER HAS RECOMMENDED REPLACING BOTH TAIL LIGHT HOUSING ASSEMBLIES AT A SIGNIFICANT COST OF $750 EACH. DEALER HAS ALSO STATED THIS IS A "COMMON PROBLEM" OF THE 2015 GMC VEHICLES WITH AN LED BRAKE LIGHT DESIGN; NO EASY OR AFFORDABLE SOLUTION OUT THERE.

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I WAS DRIVING AND WITH WARNING SUV STARTED ACCELERATING AND I BRAKES WOOD NOT WORK I WAS NOT ABLE TO STOP INTILL I PRESS HARD ON THE PEDAL

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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.

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REAR LEFT AND RIGHT BRAKE LIGHTS STOPPED WORKING WITH NO WARNING WHILE AT A STOP LIGHT IN THE CITY. APPARENTLY SEVERAL GMC YUKON 2015 OWNERS ARE HAVING THE SAME PROBLEM AND IT'S AN ELECTRICAL DEFECT WITH THE TAILLIGHTS IT'S NOT THE BULBS.

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THE PASSENGER SIDE BRAKE LIGHT ON MY 2015 GMC YUKON NO LONGER WORKS. THE COST TO REPLACE IT IS OVER $500. AFTER DOING SOME RESEARCH ON LED LIGHTS I BELIEVE THE BRAKE LIGHT IS FAULTY OR CHEAPLY MADE AND THAT IT SHOULD LAST A LOT LONGER THAN 3 YEARS AND 66,000 MILES.

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TL* THE CONTACT OWNS A 2015 GMC YUKON DENALI. WHILE THE VEHICLE WAS STATIONARY, WATER ENTERED THE CABIN OF THE VEHICLE THROUGH THE HIGH FREQUENCY ANTENNA SEAL. IN ADDITION, THE CONTACT STATED THAT THE COMPUTER SYSTEM HAD AN ELECTRICAL MALFUNCTION AND THE VEHICLE'S BRAKES ENGAGED WITHOUT WARNING. DIXIE BUICK GMC IN FORT MYERS, FLORIDA WAS MADE AWARE OF THE FAILURE AND DIAGNOSED THAT THE HIGH FREQUENCY ANTENNA NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 76,000. THE VIN WAS NOT AVAILABLE.

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BOTH BRAKE LIGHTS FAILED WITHIN WEEKS OF EACH OTHER - AROUND 60K MILES. FAULTY LED CIRCUIT BOARDS. LIGHT ASSEMBLIES ARE NOT REPAIRABLE BY DEALERSHIP. NEW ASSEMBLY OVER $500 EACH. GM TAKES NO RESPONSIBILITY IN RESOLVING THE ISSUE. UNACCEPTABLE! NO MORE GMS FOR MY FAMILY! .. AND THAT INCLUDES CHEVY.

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TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING APPROXIMATELY 5 MPH, THE BRAKE PEDAL STIFFENED AND THE VEHICLE DID NOT STOP WHEN THE PEDAL WAS DEPRESSED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT USED THE EMERGENCY BRAKE TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO KEYES WOODLAND HILLS BUICK GMC (6133 TOPANGA CANYON BLVD, WOODLAND HILLS, CA 91367) WHERE IT WAS DIAGNOSED THAT THE VACUUM PUMP FAILED AND DAMAGED THE ENTIRE BRAKING SYSTEM. THE TECHNICIAN REPLACED THE VACUUM PUMP AND THE ENTIRE BRAKING SYSTEM. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THERE WAS NO RECALL. THE FAILURE MILEAGE WAS 40,500.

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TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE AT A DRIVE THRU WITH THE BRAKE PEDAL DEPRESSED TO THE FLOORBOARD, THE BRAKES FAILED. THE CONTACT HAD TO APPLY EXCESSIVE FORCE IN ORDER FOR THE VEHICLE TO STOP. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO STARLING CHEVROLET BUICK GMC (1001 E IRLO BRONSON MEMORIAL HWY, ST CLOUD, FL 34769, PHONE: (407) 892-5144), BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE FAILURE HAD TO BE DUPLICATED. THE APPROXIMATE FAILURE MILEAGE WAS 42,000. THE VIN WAS NOT AVAILABLE.

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