What 497 owners told NHTSA about the 2016 GMC Yukon Denali Xl 1500

FAULTY BREAK LIGHTS. THE LED CIRCUIT IS FAULTY AND CRACKS WHICH REQUIRES THE ENTIRE LIGHT ASSEMBLY TO BE REPLACED.

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VEHICLE IN MOTION AND BRAKES WOULD NOT WORK UNLESS YOU PUT ALL YOUR BODY WEIGHT ON THE BRAKES, AND THEN JUST BARELY. HAPPENED MULTIPLE TIMES ON AND OFF BOTH AT HIGH RATE OF SPEED ON HIGHWAY AND ON CITY STREETS. TOOK INTO GMC DEALERSHIP AND THEY REPLACED THE VACUUM PUMP FOR THE BRAKES -- PROBLEM SOLVED AFTER SPENDING $800. WE ARE LUCKY THIS IS A MAJOR SAFETY ISSUE THAT COULD HAVE CAUSED A SERIOUS ACCIDENT. I UNDERSTAND THIS EXACT PROBLEM IS A KNOWN PROBLEM CURRENTLY BEING INVESTIGATED. PLEASE FINISH YOUR INVESTIGATION QUICKLY AND ISSUE A RECALL -- SOMEBODY IS GOING TO GET KILLED IF THIS IS NOT FIXED. I LOOK FORWARD TO BEING REIMBURSED FROM GMC WHEN THE RECALL IS FINALLY ISSUED.

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MY 2016 GMC YUKON XL RECENTLY BEGAN HAVING A HARD BRAKE PEDAL WHEN REVERSING OUT OF PARKING SPOTS, OR WHEN ROLLING DOWNHILL. A COUPLE OF TIMES, WHEN ROLLING FORWARD DOWNHILL IT MALFUNCTIONED CAUSING ME TO RUN INTO A DITCH. . THE HARD BRAKE PEDAL HAD CAUSED ME TO NOT BE ABLE TO STOP THE VEHICLE SEVERAL TIMES. IT WOULD ROLL BACKWARDS (OR FORWARDS) UNTIL I SHIFTED IT IN TO GEAR OR GAVE IT GAS. A FEW TIMES I ALMOST HIT VEHICLES AND PEDESTRIANS IN MY SON'S SCHOOL CARPOOL LANE. THERE IS NO WARNING. NO CHECK ENGINE LIGHT. JUST THE HORRIBLE ROCK HARD BRAKE PEDAL WHICH TURNS OUT TO BE A FAULTY VACUUM PUMP PER NAPA JIMMY VASSER CHEVROLET, THAT HAS NOW COST ME $711.00 BECAUSE IT IS NOT COVERED UNDER WARRANTY. MY CAR HAS 54,000 MILES ON IT. THIS IS UNACCEPTABLE.

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I TOOK MY CAR INTO A GMC DEALER DUE TO A FUNNY NOISE. I HAD TO PAY $800 TO REPLACE MY BRAKE VACUUM. THE VEHICLE WAS NOT BRAKING PROPERLY PRIOR TO THIS FIX.

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VACUUM PUMP WENT OUT ON MY VEHICLE RESULTING IN ALMOST BEING HIT BY A SEMI TRAVELING 65MPH. I HAD TO CALL A WRECKER TO PICK UP MY VEHICLE AND HAVE IT TOWED TO THE DEALERSHIP AS IT WAS NO LONGER SAFE TO DRIVE. I PAID OUT OF POCKET FOR THE WRECKER AND THE REPAIR BECAUSE THE VACUUM PUMP WAS NO LONGER COVERED UNDER WARRANTY AT 38,633 MILES. I WAS LEAVING A DRIVEWAY AT A SLOW SPEED TO TURN ONTO A FARM TO MARKET ROAD AND MY BRAKES WOULD NOT WORK.

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THIRD TIME THIS HAPPENED, FIRST TWO TIMES MY HUSBAND WAS DRIVING(HE CALLED THE DEALERSHIP AND THEY SAID THEY HAD NOT HEARD OF ANY PROBLEMS) AND WHEN IT HAPPENED TO ME IT WAS SCARY. I HAD MY KIDS IN THE CAR, NO INJURIES AND NO ONE WAS HURT, THANK GOD. I WAS GOING THROUGH THE DRIVE THRU STOPPED AT THE FIRST WINDOW, ACCELERATED TO NEXT WINDOW (LOW SPEED) AND DIDN'T STOP... IT WAS THE LIKE THE BRAKES LOCKED UP, COULDN'T PRESS DOWN AT ALL. CALLED THE DEALERSHIP FIRST THING IN THE MORNING, SAME THING DIDN'T KNOW OF ANY ISSUES. WELL I GOOGLED IT AND IT IS UNDER INVESTIGATION, SO I KINDLY PRINTED OFF ALL THE ARTICLES SO THEY COULD LET OTHER CUSTOMERS KNOW THERE WAS AN ISSUE (THEY DIDN'T CARE TO KEEP THAT BUT DID ADMIT THEY KNEW THERE HAD BEEN SOME ISSUES). OF COURSE MY CAR IS JUST OUT OF WARRANTY SO THEY SAID I WOULD BE RESPONSIBLE FOR ANY ISSUES. AGAIN, THIS IS A SAFETY ISSUE AND THERE SHOULD BE A RECALL!!! THEY SHOULD BE PAYING FOR IT AND THANKING THERE LUCKY STARS NO ONE WAS INJURED. THE TOTAL CAME TO $950, THEY ASKED IF I WANTED THEM TO FIX THE PUMP, BELT AND BELT KIT (I ASKED IF THIS WAS THE ISSUE OTHERS WERE HAVING AND HE SAID HE BELIEVES SO). WHAT WAS I GOING TO SAY NO? DID I REALLY HAVE AN OPTION?? THE BRAKES WEREN'T WORKING!!!! KIND OF A BIG DEAL!! OF COURSE I WOULD LIKE THEM TO PAY ME BACK (THEY DID GIVE ME A CREDIT OF $208) BUT I DO BELIEVE THEY NEED TO DO A RECALL BEFORE SOMEONE GETS HURT.

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BRAKES FAIL AT LOW SPEEDS AND WHEN REVERSING SLOWLY. CAN REPLICATE PROBLEM. SEARCHED INTERNET AND THIS APPEARS TO BE A WIDESPREAD PROBLEM. SERVICE BULLETINS HAVE EVEN BEEN WRITTEN. WHY NO RECALL FOR A WIDESPREAD ISSUE THAT COULD HAVE CATASTROPHIC CONSEQUENCES. . VEHICLE HAS LESS THAN 50000 MILES.

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WHEN PRESSING THE BRAKE PETAL AT LOW SPEEDS AND IN BUMPER TO BUMPER TRAFFIC THE BRAKE PEDAL BECOMES VERY HARD TO PRESS AND VERY DIFFICULT TO GET THE VEHICLE TO STOP. THIS PROBLEM ALSO IS NOTICED WHEN BACKING THE VEHICLE IN REVERSE AND INTO A PARKING SPOT.

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BRAKES GET VERY HARD TO PUSH AND DO NOT WORK WELL WHEN GOING SLOW SPEEDS OR BACKING UP. UNABLE TO EVEN FIX AS I HAVE BEEN TOLD THE PART IS ON NATIONAL BACK ORDER! SO I'M STUCK TRYING NOT TO CRASH WITH FAULTY VACUUM BRAKE PART! LEFT REAR SEAT MOTOR WORKS, BUT SMALL PLASTIC PART BROKE SO SEAT WORN MOVE AND IS STUCK IN ONE POSITION.

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THE VEHICLE HAS EXPERIENCED AT SLOW SPEED OR BACKING A SOLID/STUCK BRAKE PEDAL THAT WOULDN'T MOVE. THE PEDAL WAS BASICALLY STUCK, NOT MOVING AT ALL. THIS OCCURRED COMING TO A STOP AT LIKE AN INTERSECTION OR AS STATED BACKING OUT OF A PARKING SPOT. IT FELT AS IF THE TRUCK WOULDN'T STOP AND NO MATTER HOW HARD THE PEDAL WAS PUSHED IT WOULDN'T MOVE FOR A FEW SECONDS.

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BEGINNING AROUND 70K MILES, MY WIFE COMPLAINED OF BRAKES NOT WORKING AT LOW SPEED IN PARKING LOTS, ESPECIALLY IN REVERSE, WITH VERY HARD PEDAL, OCCASIONAL OCCURRING. WHILE I WAS DRIVING, OCCURRED MULTIPLE TIMES AT GAS STATION AT VERY LOW SPEED DURING STOP OVER ON A LONG ROAD TRIP AT 80K MILES. UPON TAKING TO GM DEALERSHIP FOR ANOTHER ISSUE, GM SERVICE TECHNICIAN VERIFIED THE CONCERN. VACUUM PUMP REPLACED ON 12/14/18. FEW MILES SINCE BUT TEST DRIVING HAS NOT HAD ANOTHER OCCURRENCE. VEHICLE FAILURE CONFIRMATION AND REPAIR DONE AT JOE BOWMAN CHEVROLET IN HARRISONBURG, VA.

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WHEN PRESSING THE BRAKE PETAL AT LOW SPEEDS AND IN BUMPER TO BUMPER TRAFFIC THE BRAKE PEDAL BECOMES VERY HARD TO PRESS AND VERY DIFFICULT TO GET THE VEHICLE TO STOP. THIS PROBLEM ALSO IS NOTICED WHEN BACKING THE VEHICLE IN REVERSE AND INTO A PARKING SPOT.

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LOW SPEED BRAKE FAILURE: AT LOW SPEEDS THE BRAKE PEDAL BECAME FIRM AND THE VEHICLE DID NOT STOP IN AN APPROPRIATE TIME. THIS LED TO TWO NEAR ACCIDENTS. BOTH TIMES THE VEHICLE WAS IN A LINE OF CARS THAT WAS STOP AND GO PICKING UP CHILDREN AT AFTER SCHOOL. SERIOUS CONCERN THAT THE VEHICLE WILL NOT STOP AND INJURE CHILDREN TRYING TO LOAD OR UNLOAD. THE PROBLEM APPEARS TO OCCUR ONLY AT LOW SPEEDS ONLY.

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DRIVING AT LOW SPEEDS (5 MPH OR BELOW) THE BRAKES FAILED TO ENGAGE. THE BRAKE PEDAL WAS STIFF AND OFFERED LITTLE PRESS. PRESSING THE PEDAL EXTREMELY HARD BROUGHT THE VEHICLE TO A STOP. THIS HAPPENED MULTIPLE TIMES IN A SINGLE DAY, ALMOST CAUSING AN ACCIDENT IN TRAFFIC AND DID CAUSE ME TO BUMP INTO OUR GARAGE WALL. WHEN A I TOOK THE VEHICLE IN TO BE SERVICED, THE VACUUM PUMP HAD TO BE REPLACED. OUR VEHICLE AS 39,800 MILES. THIS APPEARS TO BE A KNOWN DEFECT: TECHNICAL BULLETIN PIT5361B EXISTS A CLASS ACTION LAWSUIT HAS RECENTLY BEEN FILED (HTTPS://WWW.CARCOMPLAINTS.COM/NEWS/2018/GM-BRAKE-VACUUM-PUMP-FAILURES-LAWSUIT.SHTML) A QUICK INTERNET SEARCH REVEALS MULTIPLE SIMILAR ISSUES. COST TO REPAIR IS OVER $900 AT GMC DEALER.

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ON 9/25/18 WHILE APPLYING BRAKES THE BRAKE PEDAL BECAME EXTREMELY HARD TO PRESS AND VERY HARD TO STOP THE VEHICLE. THANK GOD IT WAS IN MY DRIVEWAY THIS OCCURRED. MY SIGNIFICANT OTHER CAME HOME FROM WORK ON 9/27/18 AND CHANGED PADS, LUBED CALIPER SLIDERS, AND VERIFIED PROPER CALIPER OPERATION. SPENT 9/26/18 TALKING WITH THE DEALER AND CHECKING RECALLS. ALL THESE REPAIRS WERE SUGGESTED BY THE LOCAL DEALER, BY THEM OF COURSE. UPON TEST DRIVE AFTER NEW PADS WERE INSTALLED, THE SAME ISSUE HAPPENED. DRIVING FORWARD THE BRAKES OPERATE AS THEY SHOULD OR AT LEAST FEEL NORMAL.

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GMC YUKON 2016 REAR LIGHTS ARE DEFECTIVE. THIS IS THE 2ND TIME THEY HAVE GONE OUT AND IT IS NOT A QUICK FIX TO REPLACE. COST IS APPROXIMATELY $750 TO REPLACE A LIGHT THAT WILL GO OUT AGAIN DUE TO POOR MANUFACTURING AND QUALITY. THE FIRST TIME IT WENT OUT WAS ONLY A YEAR AFTER PURCHASE. THIS IS THE 2ND TIME IT HAS GONE OUT AND IS NOT D=COVERE UNDER WARRANTY. THESE LIGHTS ARE NOT MADE TO LAST A DECENT AMOUNT OF TIME. THERE ARE NUMEROUS ISSUES REPORTED REGARDING THESE REAR LIGHTS.

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WHEN STARTING AND STOPPING (DEPRESSING THE BRAKE PEDAL MULTIPLE TIMES) SUCH AS AT A LEFT TURN (WAITING FOR TRAFFIC) OR A DRIVE-THRU WINDOW, THE BRAKES STOP WORKING AND THE CAR ROLLS FORWARD EVEN WHEN THE BRAKE IS DEPRESSED. IF YOU PRESS REALLY HARD IT WILL USUALLY STOP- BUT IT DEFINITELY ROLLS FORWARD WHEN YOU ARE TRYING TO STOP. THE DEALERSHIP SAYS THAT A VACUUM PUMP IS FAULTY BUT THIS COULD RESULT IN AN ACCIDENT AS I ALMOST ROLLED INTO ONCOMING TRAFFIC WHILE WAITING IN LINE TO TURN LEFT AT A "LEFT TURN YIELD ON GREEN LIGHT".

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TL* THE CONTACT OWNS A 2016 GMC YUKON XL. ON SEVERAL OCCASIONS, WHEN THE BRAKE PEDAL WAS DEPRESSED AT LOW SPEEDS, THE BRAKES FAILED TO SLOW DOWN THE VEHICLE. THE CONTACT STATED THAT THE FAILURE WAS INTERMITTENT. THE VEHICLE WAS TAKEN TO SOUTHERN PINES CHEVROLET BUICK GMC (10722 US-15, SOUTHERN PINES, NC 28387, (910) 692-2002) WHERE IT WAS DIAGNOSED THAT THE BRAKE LINES AND VACUUM PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000.

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WHILE EXITING THE OHIO TURNPIKE, MY BRAKE PEDAL BEGAN TO STOP DEPRESSING COMPLETELY- TO THE POINT WHERE I COULDN'T PUSH DOWN AT ALL. IT FELT LIKE AN OVER-PUMPED KEG. AS I CONTINUED MY EXIT TOWARD THE TOLL BOOTH, IT SEEMED THAT THE ABS WERE ENGAGING, BUT I WASN'T IN AN EMERGENCY BRAKING SITUATION. THE REST OF MY JOURNEY HOME WAS UNEVENTFUL, UNTIL I ARRIVED HOME. I PULLED INTO MY GARAGE, AND ATTEMPTED TO BACK OUT SO I CHECK UNDER THE VEHICLE TO MAKE SURE THERE WASN'T ANYTHING LEAKING. AS I BACKED OUT, MY BRAKES WOULD NOT ENGAGE PROPERLY AGAIN AND MY CAR ROLLED BACK DOWN MY DRIVE WAY. THE CAR STOPPED AND I PARKED IT WHERE IT WAS. LATER IN THE DAY, I WAS ABLE TO PULL THE CAR INTO MY GARAGE WITHOUT INCIDENT. I TOOK THE CAR TO CHESROWN GMC (THE DEALERSHIP WHERE I PURCHASED THE VEHICLE). THEY ADVISED THEY HAD NEVER HEARD OF SUCH A SITUATION AND HAD ME BEING VEHICLE TO THEM. I COULDN'T REPLICATE THE ISSUE WITH THEM, BUT LEFT THE CAR WITH THEM SO THEY COULD CHECK IT OUT FOR ISSUES. THEY REPLACED THE THE BRAKE VACUUM PUMP. TODAY (7/31/17), THE BRAKES STARTED TO BEHAVE IN THE SAME MANNER AS WHEN THEY FAILED ON 7/16/17.

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FRONT BRAKE CALIPERS STICKING CAUSING PREMATURE WEAR OUT OF PADS AND DRIVER SIDE ROTOR AT ~11900 MILES. AFTER FIRST REPAIR, ~900 MILES AND THREE WEEKS LATER, WHILE DRIVING DOWN A SNOW COVERED CITY HILL ABS WAS ENGAGED FOR A SHORT PERIOD OF TIME AND THEN DASH DISPLAYED A "BRAKE FAILURE" WARNING. AFTER THE MESSAGE THE FRONT BRAKES LOCKED UP COMPLETELY, CAUSING LOSS OF CONTROL OF THE VEHICLE AND INDUCED A SLIDE OF OVER 1000FT DOWN THE HILL. ONCE THE VEHICLE FINALLY CAME TO A STOP, A LOUD SOUND WAS COMING FROM THE UNDER CARRIAGE. POWERING DOWN THE VEHICLE DID NOT STOP THE SOUND. RESTART OF THE VEHICLE DISPLAYED "SERVICE STABILITRACK" AND "SERVICE TRAILER BRAKE" WARNINGS. THE ABS, TRACTION CONTROL SLIPPAGE, AND BRAKE LIGHTS ALSO ALL STAYED ILLUMINATED. VEHICLE HAD TO BE TOWED TO DEALER AS IT WAS UNSAFE TO DRIVE. UPON INSPECTION AT GMC DEALER THEY REPORTED THE ELECTRONIC BRAKE CONTROL MODULE (EBCM) WAS SHORTED OUT INTERNALLY AND SECOND FRONT ROTOR WAS ALSO SCORED. THEY REPLACED THE EBCM AND ROTOR UNDER WARRANTY. I'M TOLD THE CALIPER STICKING ISSUE IS COMMON, AND THIS IS NOT THE FIRST EBCM THEY HAVE REPLACED. IN SUMMARY, DAMAGE TO ROTORS AND PADS IS VERY DANGEROUS. AS THE VEHICLE ONLY HAS ~12000 MILES NO ONE WOULD EXPECT THIS TYPE OF WEAR. THE FAILURE OF THE ABS SYSTEM NEARLY CAUSED AN ACCIDENT THAT COULD HAVE BEEN FATAL AS THE VEHICLE WAS DESCENDING A HILL AND AT THE VERY TIME THE ABS WAS NEEDED IT CAUSED LOCK UP OF THE FONT WHEELS INDUCING A SLIDE AND LOSS OF ABILITY TO STEER. *TR

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