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

AIR CONDITIONING FAILURE, CONDENSER DEFECTIVE. REPAIR IMPOSSIBLE BECAUSE PART HAS BEEN ON BACKORDER FOR OVER A MONTH.

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AC IS NOT WORKING. ONLY HOT AIR BLOWS OUT. DEALER IS TELLING US THAT THE COMPRESSOR IS OUT AND IS COMMONLY OUT FOR GM PRODUCTS FROM THIS YEAR. THE PART IS BACK ORDERED WITH NO DATE AVAILABLE THAT IT WILL BE AVAILABLE. APPARENTLY IT IS BEING REDESIGNED. WE HAVE BEEN TOLD IT MAY BE MONTHS. SUMMER HEAT IS COMING AS EARLY AS THIS WEEK. WITH 4 CHILDREN, I FIND IT UNSAFE TO HAVE SUCH A HOT CAR. 17 PEOPLE AT OUR DEALER ALONE ARE WAITING FOR THE SAME PART. PLEASE GET GM TO FIX THE ISSUE.

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THE A C COMPRESSOR LEAKS ALLOWOWING FREON INTO THE AIR AND THE CAB WERE THE DRIVER AND OCCUPANTS BREATHE IT.

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TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING 60 MPH, THE EXTERIOR DOOR APPLIQUE COVERS RATTLED VIOLENTLY. THE CONTACT WAS INFORMED TO CONTACT THE MANUFACTURER TO REPORT A NON-SAFETY RELATED DEFECT. THE CONTACT ALSO STATED THAT THE REAR PASSENGER SIDE BRAKE LIGHT FAILED INTERMITTENTLY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 40,600.

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REAR TAILLIGHTS HAVE MOISTURE IN THEM. THE MOISTURE IS CONSTANT IN ONE AND INTERMITTENT IN THE OTHER. BOTH HAVE BEEN REPLACED ONCE BY DEALER 3 MONTHS AGO. PROBLEM STILL EXISTS

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VEHICLE DRIVE TRAIN OPERATES ERRATICALLY IN VARIOUS OPERATING SITUATIONS AND HAS EXTENSIVE VIBRATIONS BETWEEN 25-40MPH; VIBRATIONS ARE WORSE IN CERTAIN GEARS. SIGNIFICANT LUNGEING AND JERKING OF SHIFTING GEARS ON ACCELERATION, PARTICULARLY WHEN NOT ACCELERATING INTENSELY. VEHICLE MAKES A CLUNK/KNOCK SOUND WHEN DECELERATING RAPEDLY. TAKEN IN FOR SERVICE 2X AT 2 DIFFERENT GMC DEALERS. TRANSMISSION HAS BEEN REPROGRAMMED 1X. NITHER DEALER PROVIDED GMC TECHNICAL SERVICE BULLETIN "#99-04-20-002I: INFORMATION ON DRIVE TRAIN CLUNK NOISE - (NOV 18, 2014)" AFTER MY VEHICLE WAS TAKEN ON AN UNAUTHERIZED 30 MILE 'TEST DRIVE' I WAS TOLD 'IT'S NORMAL OPERATION' AND "CUSTOMER CONCERN NOT DUPLICATED AT THIS TIME". SIMPLY FIND THIS HARD TO BELIEVE AS THE OPERATIONS AS DESCRIBED ARE BEING ACKNOWLEDGED BY A GMC BULLETIN. THIS IS SERIOUS: (1) THE SUDDEN JERKING/SLAMMING OF GEARS WILL HAVE A LONG TERM EFFECT ON THE TRANSMISSION (2) THE ACCELERATION ON DOWNSHIFTING IS A HUGE LIABILITY AS THE INCREASED POSSIBILITY OF COLLISION IS SIGNIFICANT AND (3) DIFFINETLY NOT 'NORMAL' OPERATION.

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VEHICLE DRIVE TRAIN OPERATES ERRATICALLY IN VARIOUS OPERATING SITUATIONS AND HAS EXTENSIVE VIBRATIONS BETWEEN 25-40MPH; VIBRATIONS ARE WORSE IN CERTAIN GEARS. SIGNIFICANT LUNGEING AND JERKING ON SHIFTING GEARS ON ACCELERATION PARTICULARLY WHEN NOT ACCELERATING INTENSELY. MOST CONCERNING: WHEN DECELERATING AFTER RUNNING AT HIGHWAY SPEEDS AND DOWNSHIFTING (I.E. EXIT RAMPS, HIGHWAY SERVICE/REST AREAS), VEHICLE ACCELERATES (AFTER DOWNSHIFTING) AND REQUIRES EXTENSIVE BRAKE PRESSURE TO SLOW AND CONTROL. TAKEN IN FOR SERVICE 3X AT 3 DIFFERENT GMC DEALERS. TRANSMISSION HAS BEEN REPROGRAMMED 2X. 3RD DEALER PROVIDED GMC TECHNICAL SERVICE BULLETIN "#99-04-20-002I: INFORMATION ON DRIVE TRAIN CLUNK NOISE - (NOV 18, 2014)" AND TOLD IT'S 'NORMAL OPERATION' AND IS DUE TO DRIVETRAIN 'LASH' (AKA GEAR SLOP OR PLAY). PAID $150 TO BE TOLD "CUSTOMER CONCERN NOT DUPLICATED AT THIS TIME". SIMPLY FIND THIS HARD TO BELIEVE AS THE OPERATIONS AS DESCRIBED ARE READILY APPARENT. IN ALL SERIOUSNESS: (1) THE SUDDEN JERKING/SLAMMING OF GEARS ON ACCELERATION HAS BEEN NOTICE BY SEVERAL PASSENGERS NOT JUST MYSELF, (2) THE ACCELERATION ON DOWNSHIFTING IS A HUGE LIABILITY AS THE INCREASED POSSIBILITY OF REAR END COLLISION IS SIGNIFICANT AND (3) NO WAY IS IT 'NORMAL' OPERATION.

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TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING VARIOUS SPEEDS, THE BRAKE LIGHTS FAILED TO ILLUMINATE WHEN THE BRAKE PEDAL WAS DEPRESSED. THE DEALER DIAGNOSED THAT THE TAIL ASSEMBLY NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 35,510.

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IN MOTION VEHICLE SHUTTERS, CLUNKING IN BETWEEN GEARS, CLUNKS GOING INTO REVERSE, SHUTTERS BETWEEN 30-40 MPH AND OVER 65 MPH. BOUGHT VEHICLE BRAND NEW OFF SHOW ROOM FLOOR, VEHICLE WAS OUT OF ALIGNMENT WHEN I PURCHASED IT. AROUND 12,000 MILES NOTICED IT WAS SHUTTERING AND AS TIME HAS CONTINUED IT HAS PROGRESSIVELY GOTTEN WORSE. AT 17,000 MILES 11/16 TORQUE CONVERTOR WENT OUT AND WAS REPLACED. 1/17 BACK IN SHOP NOW WITH SAME PROBLEMS BUT MUCH WORSE.

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2015 GMC YUKON. CONSUMER WRITES IN REGARDS TO BAD TIRE VIBRATION WHEN DRIVING AT CERTAIN SPEEDS. *LD THE CONSUMER STATED THE TIRES ON HIS SUV DO NOT QUALIFY UNDER THE RECALL, BECAUSE OF THE YEAR THEY WERE MANUFACTURED. *JB

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THE VEHICLE HAS LEAKED WATER IN THE SEAMS OF THE BACK DRIVER SIDE SINCE THE INITIAL PURCHASE. IT HAS BEEN REPAIRED NINE TIMES BY TWO DIFFERENT DEALERSHIPS AND IT STILL LEAKS. THE VEHICLE NOW CONTAINS A HIGH MOISTURE READING AND WAS TESTED BY A MOLD SPECIALIST AND DETERMINED TO HAVE MOLD. THE VEHICLE IS CURRENTLY WITH THE DEALERSHIP.

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HEADLIGHTS DO NOT ILLUMINATE THE ROAD FAR ENOUGH TO ALLOW SAFE DRIVING. TOOK VEHICLE TO LOCAL DEALER AND THEY CHECKED THE LIGHTS AND SAID THEY MEET MANUFACTURES SPECIFICATION. WHEN DRIVING ON COUNTRY ROAD WITH NO OTHER ILLUMINATION THE HEADLIGHTS DO NOT PROJECT FAR ENOUGH TO SEE WHAT IS AHEAD. DRIVING AT POSTED SPEEDS 55 TO 60 MPH CANNOT SEE WHAT IS COMING UP. HAVE TO USE HIGH BEAM IN ORDER TO SEE FAR ENOUGH TO BE SAFE. DID AN ONLINE SEARCH AND FOUND THAT THIS IS A COMMON COMPLAINT FOR THIS MODEL YEAR. *TR

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TL* THE CONTACT OWNS A 2015 GMC YUKON EQUIPPED WITH CONTINENTAL CROSSCONTACT LX20 TIRES, SIZE: P275/55R20 111S. AFTER THE CONTACT RECEIVED A SAFETY RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 16T016000 (TIRES), THE CONTACT INSPECTED THE TIRES AND FOUND EXCESSIVE TREAD WEAR, VIBRATIONS, AND NOISE FROM ONE OF THE TIRES. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DETERMINED THAT THE VEHICLE WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 16T016000 (TIRES). THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE AND TIRE FAILURE MILEAGE WAS 38,000.

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VIBRATION THOUGH CAR AT HIGH SPEEDS SINCE CAR IS NEW. DEALER REPLACED ONE TIRE AND THAT CURED PROBLEM FOR A SHORT PERIOD. HAVE RETURNED VEHICLE TO DEALER SEVERAL TIMES FOR THE RECURRING PROBLEM AND IT HAS NOT BEEN ADDRESSED CORRECTLY RECEIVED RECALL LETTER FROM CONTINENTAL TIRE DUE TO VIBRATION ISSUES. MY VEHICLE IS NOT EQUIPPED WITH TIRES CONTAINING DATE CODE AFFECTED BY THE RECALL. THE MAKE, MODEL, AND SIZE OF TIRES DOES MATCH RECALL. I BELIEVE THERE IS A LARGER ISSUE COVERING A MUCH LARGER PERIOD OF TIME OF TIRE MANUFACTURE AND MY CAR SHOULD BE INCLUDED IN RECALL. FOR THE MOST PART HAVE STOPPED DRIVING THE CAR FOR FEAR OF A TIRE BLOWING OUT OR DAMAGING THE VEHICLE. *TR

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WINDOW APPLIQUS ON BOTH SIDES OF VEHICLE BECAME LOOSE AND WERE FLAPPING WHILE DRIVING. THIS WAS CONCURRENT WITH A VERY NOISY CABIN, LIKENED TO THE SOUND OF A WINDOW BEING OPEN WHILE TRAVELING AT HIGHWAY SPEEDS. THESE APPLIQUES WERE PREVIOUSLY REPLACED BY DEALER AFTER INCIDENTALLY BEING FOUND LOOSE. THE NOISY ENVIRONMENT IN CABIN IS VERY LOUD AND DISTRACTING, CAUSING DRIVER AND PASSENGERS TO GET HEADACHES AND CAUSING DRIVER TO BECOME DISTRACTED. *TR

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TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING VARIOUS SPEEDS, THE BRAKE PEDAL WAS APPLIED AND THE VEHICLE FAILED TO STOP. THE BRAKE PEDAL HAD TO BE PUMPED SEVERAL TIMES TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WERE IT WAS DIAGNOSED THAT THE BRAKE BOOSTER NEEDED TO BE ADJUSTED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHERE THE BRAKE FAILURE WAS DUPLICATED AND DIAGNOSED THAT THE BRAKE BOOSTERS NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 35,000.

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HELLO.. THERE IS A CLICKING NOICE COMING OUT IT THE STEERING WHEEL. AS WELL AS VIBRATION . IT SEEN THAT THE TRANSFER OF IT FROM THE FRONT END. THE HOLE STEERING WHEEL SHAKES.

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TRANSMISSION HAS BEEN CLUNKY AND JERKY FROM FROM PURCHASE. THE VEHICLE VIBRATES BETWEEN 30 - 35 MILES PER HOUR WHEN SHIFTING. THE VEHICLE LURCHES FORWARD WHEN ACCELERATING AS IF IT HAS DIFFICULTY DOWN-SHIFTING. THE PROBLEM IS PRESENT FROM SIMPLY BACKING UP OUT OF THE DRIVEWAY, MODEST SPEEDS ON CITY STREETS, OR ON THE HIGHWAY. WHEN BROUGHT BACK TO THE DEALER, THEY CLAIMED IT WAS A SOFTWARE ISSUE AND "REFRESHED" THE SOFTWARE. THE PROBLEM HAS NOT GONE AWAY AND DID NOT IMPROVE BY THIS SOFTWARE CORRECTION. MY INTERNET RESEARCH INDICATES THAT THIS IS A COMMON PROBLEM WITH THE NEW 8-SPEED TRANSMISSION FOR THE 2015 YUKON DENALI AND CADILLAC ESCALADE.

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VEHICLE STEERING SHAFT CLICKS AND POPS WHEN WHEEL IS TURNED, AS IF STEERING SHAFT IS BINDING. HAPTIC FEEDBACK IS FELT IN THE STEERING WHEEL DURING EACH INSTANCE OF A CLICK OR POP. DEALERSHIP REPLACED STEERING SHAFT BEARING, RETAINER SPRING, AND SEAT AND PROBLEM HAS RETURNED. ONLINE FORUMS HAVE SHOWN NUMEROUS OTHER GM OWNERS EXPERIENCING THE SAME PROBLEM. SOME HAVE REPORTED STEERING WHEEL LOCATION SENSOR IS CATCHING. OTHERS HAVE REPORTED ENTIRE STEERING SHAFT MUST BE REPLACED AND CLAIM IT IS ON NATIONAL BACK ORDER. THIS IS NOT ONLY A NUISANCE, BUT CREATES CONSTERNATION OVER SAFETY OF STEERING. ISSUE SHOULD BE INVESTIGATED FOR POSSIBLE SAFETY RECALL.

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OUR 2015 YUKON XL DENALI HAS BEEN IN FOR REPAIR SERVICE FOR 41 DAYS SINCE PURCHASED NEW 3/23/15. THE CAR HAS STALLED WHILE IN MOTION WITH MY WIFE AND THREE DAUGHTERS IN THE VEHICLE TWICE AND BEEN UNRESPONSIVE TO THROTTLE INPUT 3 ADDITIONAL TIMES. THE STALL OCCURRED ONCE WHILE TURNING LEFT ACROSS TRAFFIC AND ANOTHER TIME WHILE TURNING RIGHT AND MERGING WITH TRAFFIC! THE PROBLEM IS INTERMITTENT AND GMC HAS NEVER BEEN ABLE TO REPLICATE IT. THEY HAVE GIVEN US THE SHOULDER SHRUG, "I DON'T KNOW WHAT TO TELL YOU, WE CAN'T REPLICATE IT" LINE, SO HERE ARE YOUR KEYS. NO WARNING INDICATORS, NO SIGNS IT MAY HAPPEN, AND NO WAY TO PULL UP THE ISSUE WITH THEIR DIAGNOSTICS...HUGE SAFETY CONCERN AND EACH TIME THEY HAVE HANDED US THE KEYS BACK AFTER 7 DAYS (THEIR STANDARD ALLOTTED TIME TO HAVE A LOANER OUT) WITHOUT ANY PROACTIVE ESCALATION TO FIND ROOT CAUSE OR CONCERN FOR MY FAMILY'S SAFETY. THE LAST TIME WE TOOK IT IN, THEY HAD IT FOR 8 DAYS AND COULD NOT REPLICATE THE ISSUE. WE SIGNED OUR SERVICE PAPERWORK AND I ESCALATED TO THE SERVICE MANAGER BEFORE LEAVING. AFTER TELLING HIM WE WOULD BE PURSUING BUYBACK, HE MIRACULOUSLY HAD AN IDEA IT MAY BE RELATED TO A WIRING HARNESS ISSUE. THIS WAS BASED OFF HIS EXPERIENCE WITH A SIERRA PICKUP (5.3L, NOT OUR 6.2L) THAT HAD SIMILAR BEHAVIOR. WE LEFT THE VEHICLE AND, WOULDN'T YOU KNOW IT, THEY REPLACED A WIRE AND "HAVE REASONABLE CONFIDENCE" IT RESOLVED THE ISSUE. TWO WEEKS LATER, IT'S BACK IN THE SHOP FOR KEY FOB NOT DETECTED (AFTER ALREADY DRIVING). TRUCK IS IN GEAR AND YOU CANNOT MOVE...ANOTHER HUGE SAFETY CONCERN. IT'S A DUD. WE HAVE ALSO HAD TO HAVE ALL 8 INJECTORS REPLACED DUE TO ROUGH IDLING AND THE STEERING GEAR REPLACED FROM FAULTY MANUFACTURING THAT CREATES A CLICKING WHILE TURNING THE WHEEL, THE CAR IS AT THE DEALER AND WE WILL NOT BE TAKING IT BACK. WE ARE GOING THROUGH THE OFFICAL BUY-BACK PROCESS WITH GMC.

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WHEN APPROACHING A TOLL BOOTH ON THE MASS TURNPIKE,WITH SEVERAL LANES MERGING, WITH THE VEHICLE ALMOST STOPPED,IT DOWNSHIFTED TO 1ST GEAR AND IN THE PROCESS LURCHED FORWARD EXTREMELY VIOLENTLY TO THE POINT I ALMOST CRASHED INTO THE CAR MERGING IN FRONT OF ME-PROBABLY STOPPED SHORT BY SIX INCHES OR LESS !!!

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JULY 26, 2016 WE WERE IN LAS VEGAS TRAVELING ON THE STRIP AND OUR VEHICLE LOSS POWER AND DIED, IT STARTED UP AFTER A FEW MINUTES. A CODE WAS SET FOR FUEL PUMP PRESSURE, THEN TODAY WE WERE IN MARNA AZ, AND OUR VEHICLE DIED WHILE DRIVING IN TOWN. A POLICEMAN FOLLOWED US TO FIND OUT WHAT WAS WRONG AND WE TOLD HIM. TO OUR SURPRISE HE HAS BEEN HAVING THE SAME ISSUE WITH HIS 2015 TAHOE. HE BROUGHT HIS VEHICLE TO DEALERSHIP AND THEY TOLD HIM IT HERE WAS A PROBLEM WITH THE FUEL PUMP WHEN THE TEMP IS TOO HOT.

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OUR VEHICLE HAS A SIGNIFICANT VIBRATION IN V4 MODE WHEN TRAVELING BETWEEN 45-65 MPH AND ABOVE. THE VIBRATION IS ALSO ACCOMPANIED BY INCREASED CABIN PRESSURE. THESE ISSUES ARE CAUSING HEADACHES, NAUSEA, DIZZINESS, AND ARE FURTHER EXACERBATING MY WIFE'S MULTIPLE SCLEROSIS. WE ALSO HAVE A POPPING SOUND COMING FROM THE REAR OF THE VEHICLE'S SUSPENSION WHEN TURNING THAT MAKES US FEEL UNSAFE. THE VIBRATION STARTED RIGHT AFTER WE TOOK DELIVERY OF THE CAR AND HAS ONLY GOTTEN WORSE. WE BOUGHT THE CAR IN APRIL 2015 AND THE ISSUE CONTINUES UNFIXED TO THIS DAY. THE POPPING NOISE STARTED ABOUT 3-4 WEEKS AGO AND IT SOUNDS LIKE A SUSPENSION COMPONENT. OUR AC RECIRCULATING FEATURE ALSO DOES NOT WORK AND IT ALLOWS HARMFUL EXHAUST SMOKE IN.

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I AM WRITING TO NOTIFY YOU ABOUT A PROBLEM WITH THE TRANSMISSION IN 2015 GMC YUKON XL. GM IS AWARE OF A PROBLEM. THEY ISSUED AN INTERNAL NOTICE TO DEALERS IN FEBRUARY 2016. HOWEVER, THEY HAVE NOT NOTIFIED TO OWNERS IN THE FORM OF A RECALL. ON SEVERAL OCCASIONS, MY VEHICLE JUMPED FORWARD, WHILE DRIVING IN THE CITY, WHEN IT WAS STOPPED, IN DRIVE, WITH BRAKE ENGAGED. I REPORTED TRANSMISSION PROBLEMS TO MY LOCAL DEALER BUT THEY REPEATEDLY IGNORED MY CONCERNS. THEY KEPT GIVING EXCUSES THAT DIDN'T MAKE SENSE. I FINALLY PRESSED ON, REFUSED TO TAKE MY VEHICLE BACK AND REPORTED THE PROBLEM TO SEVERAL EXECUTIVES. THE PROBLEM WAS FINALLY DIAGNOSED UNDER DIFFERENT CONDITIONS AS STATED IN THE FIRST INTERNAL DOCUMENT IN MARCH 2016. THERE WAS A PROBLEM WITH THE TRANSMISSION. THEY FINALLY REPLACED THE TRANSMISSION FOR "ONE THAT DIDN'T HAVE A PROBLEM". GM ADMITTED THERE ARE PROBLEMS WITH TRANSMISSIONS AND THE PROBLEM HAS BEEN CORRECTED IN NEWER VEHICLES. THEY HAVE YET TO ISSUE A NOTICE TO CURRENT OWNERS THAT THEIR VEHICLES ARE AT RISK. I OWNED A 2015 GMC YUKON XL BUT CHOSE TO SELL IT OVER SAFETY CONCERNS AND LACK OF APPROPRIATE RESPONSE FROM GM CORPORATE. WITH 2 YOUNG CHILDREN, I SPEND A LOT OF TIME AROUND SCHOOLS (LIKE MOST OWNERS OF LARGE GM VEHICLES). I COULD HAVE INJURED OR KILLED SOMEONE. I FEEL IT IS MY OBLIGATION TO BRING THIS SITUATION TO YOUR ATTENTION. IF YOU INTERVENE, YOU CAN HELP TO AVOID ANY INJURIES IN THE FUTURE. IT IS CLEAR THAT GM WILL NOT VOLUNTARILY PROTECT THE PUBLIC.

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DRIVER'S SEAT WAS NOT HEATING ON THE BOTTOM CUSHION, ONLY THE BACK WAS HEATING UP. TOOK TO DEALERSHIP AND AFTER THE SECOND TIME COMPLAINING THEY FOUND A FAULT IN THE SENSOR AND REPLACED. THEN THE BACK OF THE SEAT QUIT HEATING. SAME PROBLEM - HEATING SENSOR KEPT SHORTING. VERY CONCERN ABOUT SHORTS AND FAULTY CIRCUITS. COMPLAINED TO GMC ON FACEBOOK AND GOT THE TYPICAL "SO SORRY" AND "WE'RE IN CONTACT WITH THE DEALER". I HAD TO COMPLAIN MULTIPLE TIMES SINCE DECEMBER 2015 ABOUT POOR HEATING BEFORE THEY WOULD LISTEN.

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