What 389 owners told NHTSA about the 2018 GMC Acadia Denali

VEHICLE WHEN PUT IN PARK DOES NOT SHUT OFF. TOOK TO HILLSDALE GMC 1/13/20 AND IT WAS OKAY FOR AWHILE. THIS SAME PROBLEM STARTED ABOUT 3 MO AGO AGAIN. PUT IN PARK WILL NOT SHUT OFF. YOU MAY HAVE TO RESTART, PULL INTO GEAR, BACK TO PARK, OVER AND OVER! VERY ANNOYING ESPECIALLY IF YOU HAVE AN APPOINTMENT!

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WHEN PARKING CAR IT KEEPS TELLING US TO PARK WHEN IT IS IN PARK AND WE CAN TURN IT OFF

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THE SIX SPEED TRANSMISSION ALWAYS EXHIBIT BUCKING/HESITATION WHEN SHIFTING FROM 1ST GEAR TO 2ND GEAR. ALSO, WHEN SPEED BETWEEN 40MPH TO 50MPH, THE TRANSMISSION EXHIBIT SEVERE HESITATION TO DOWNSHIFT WHEN PRESS THROTTLE PEDAL. MOREOVER, THE TRANSMISSION EXHIBITS HARSHNESS WHEN DOWNSHIFT WHEN DECELERATING FROM 45MPH TO 0MPH.

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I PLACE VEHICLE IN PARK AND THE COMPUTER DOES NOT RECOGNIZE SO THE BELL COMES ON. I HAVE TO GO IN AND OUT OF PARK SEVERAL TIMES BEFORE IT ENGAGES. THIS OCCURS WHEN I AM TURNING THE ENGINE OFF, I FIRST PLACE IN PARK THEN PUSH THE IGNITION TO SHUT OFF. WE HAD A PRIOR ISSUE WHERE THE EMERGENCY BRAKE WAS ON, AUTO BACKED IN A DRIVEWAY WITH SLIGHT INCLINE, AND WHEN WE TRIED TO DISENGAGE IT WAS SIMPLY STUCK, WE CALLED TO TOW THE CARE; ONCE DRIVER ARRIVED WE WENT THROUGH THE RELEASE ONE MORE TIME AND IT FINALLY RELEASED. SINCE THAT TIME, I NEVER USE THE PARKING BRAKE. THAT OCCURRED APPROXIMATELY 9/20/2018..

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THIS VEHICLE HAS ALWAYS SINCE WE BOUGHT IT GAVE US TREMENDOUS PROBLEMS WHILE DRIVING DURING A SNOWY DAY. BRAKES TYPICALLY DO NOT WORK, AT TIMES EVEN GOING THROUGH A RED LIGHT AND THANKFULLY NOT BEEN IN AN ACCIDENT. RECENTLY, THE STABILITY CONTROL SYSTEM AND THE ANTILOCK BRAKING SYSTEM STOPPED WORKING WHILE UNDER A SNOW STORM. UNFORTUNATELY, WE TOOK IT TO THE NEAREST DELEARSHIP TO GET IT FIXED AND WE WERE TOLD THAT THE PROBLEM WAS DUE TO THE SNOW, BUT AFTER THE SNOW EVERYTHING WAS GOOD. UNFORTUNATELY, PEOPLE DO NOT HAVE THE MONEY TO PAY FOR A VEHICLE AND HAVE IT PARKED DURING THE WINTER, THAT IS WHAT IS HAPPENING TO US. BECAUSE NOR THE DEALERSHIP OR GMC HAS DONE ANYTHING TO HELP. THIS HAS BEEN REPORTED SINCE DECEMBER 2018, THE VEHICLE HAS 34500 MILES ON IT AND IS RELATIVELY NEW NOW, BUT WE SHOULD NOT HAVE THESE ISSUES. IT IS OF OUR KNOWLEDGE THAT MANY PEOPLE WHO BOUGHT THIS VEHICLE HAVE THE SAME ISSUES. IT WOULD BE GOOD IF THEY ACCEPT THESE VEHICLES HAVE ISSUES AND CORRECT THEM PRIOR TO PROMOTING AND SELLING TO CUSTOMERS. SINCE THEY DID NOT CORRECT THESE ISSUES PRIOR TO SOME INDIVIDUALS TO PURCHASE THE VEHICLE, THEY SHOULD WORK ON A SOLUTION VIA A RE-CALL TO AVOID ANY INJURIES TO FAMILIES OF THEIR VEHICLE'S OWNERS.

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TL* THE CONTACT OWNS A 2018 GMC ACADIA. THE CONTACT STATED THAT THE VEHICLE WAS STARTED REMOTELY WHILE STILL IN PARK, HOWEVER IT INDEPENDENTLY SHIFTED OUT OF PARK AND INTO REVERSE. THE CONTACT STATED THAT THE VEHICLE TRAVELED ACROSS THE YARD ONTO THE MAIN ROAD AND CRASHED INTO A BUILDING. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT AUTOBODY SHOP BUT THE FAILURE WAS NOT DIAGNOSED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 16,972.

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SHIFT TO PARK ERROR , ON COMPUTER DISPLAY.

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MY 2018 GMC ACADIA WAS BOUGHT NEW. IT HAS AN ISSUE WITH THE SHIFTER REGARDING "SHIFT TO PARK". WHEN THE VEHICLE IS PLACED IN PARK THE SENSORS OR COMPUTER DOES NOT RECOGNIZE IT AND YOU HAVE TO SHIFT IN AND OUT OF PARK TO GET IT RECOGNIZED. MY CAR HAS ROUGHLY 42OOO MILES ONLY AND WAS STATIONARY WHEN THIS OCCURRED. I CALLED MY LOCAL GMC DEALER IN NEW JERSEY AND THEY SAID IT WAS NOT UNDER RECALL, IT IS A KNOWN ELECTRICAL SHORT AND MY VEHICLE IS NOT UNDER WARRANTY. THEY WANTED 400.00+ TO FIX THE PROBLEM OR ISSUE. UPON AN INTERNET SEARCH I LEARNED THAT THIS IS A COMMON PROBLEM WITH THIS MODEL. I FEEL AS A CONSUMER THAT GMC SHOULD GENERATE A RECALL ON THIS ISSUE REGARDING "SHIFT TO PARK". THANK YOU

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MY 2018 GMC ACADIA WAS BOUGHT USED. IT HAS AN ISSUE WITH THE SHIFTER REGARDING "SHIFT TO PARK". WHEN THE VEHICLE IS PLACED IN PARK THE SENSORS OR COMPUTER DOES NOT RECOGNIZE IT AND YOU HAVE TO SHIFT IN AND OUT OF PARK TO GET IT RECOGNIZED. I CALLED MY LOCAL GMC DEALER IN TENNESSEE AND THEY SAID IT WAS NOT UNDER RECALL AND MY VEHICLE IS NOT UNDER WARRANTY. THEY WANTED 400.00 TO FIX THE PROBLEM OR ISSUE. UPON AN INTERNET SEARCH I LEARNED THAT THIS IS A COMMON PROBLEM WITH THIS MODEL. I FEEL AS A CONSUMER THAT GMC SHOULD GENERATE A RECALL ON THIS ISSUE REGARDING "SHIFT TO PARK". THANK YOU

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PLACE SHIFTER IN "PARK", TURN OFF ENGINE, AND GET "SHIFT TO PARK" MESSAGE ON CONSOLE. WHILE MESSAGE IS DISPLAYED, THE CAR CONSTANTLY BEEPS, WARNS, LIGHTS NOT TURNING OFF. HAVE TO START THE ENGINE BACK UP, AND PLACE THE SHIFTER INTO DRIVE AND THEN BACK TO PARK. SOMETIMES HAVE TO DO THIS 5-10 TIMES IN ORDER FOR THE CAR TO TURN OFF. THIS FIRST HAPPENED AT 11K MILES (UNDER WARRANTY) AND DEALERSHIP FIXED. I AM NOW AT 16K MILES AND IT IS HAPPENING AGAIN (OUT OF WARRANTY THIS TIME).

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CAR WOULD SHUTTER ON ACCELERATION. RPM GAUGE WOULD JUMP WHEN ACCELERATING OR DOWNSHIFT TO PASS/CLIMB HILL. DEALER FOUND PROBLEM WITH TORQUE CONVERTER. METAL THROUGH OUT TRANSMISSION (SEE ATTACHMENT FOR SPECIFICS AS NOTED BY MECHANIC)

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CAR DISPLAYS 'SHIFT TO PARK' MESSAGE AFTER TRANSMISSION GEAR SELECTOR HAS BEEN PLACED IN PARK. CAR WILL NOT TURN OFF AND THE TIRES ROLL FREELY. AFTER NUMEROUS ATTEMPTS OF SHIFTING IN AND OUT OF PARK THE CAR WILL FINALLY RECOGNIZE THAT IT IS IN PARK AND ALLOW YOU TO TURN OFF THE VEHICLE AS WELL AS LOCK THE TRANSMISSION.

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KEEP GETTING PARKING SHIFT GEAR WARNING EVEN WHEN VEHICLE IS PARKED. HAPPENS FREQUENTLY

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SINCE THE BEGINNING OF OCTOBER, THERE ARE TIMES THAT THE CAR DOESN'T REGISTER THAT IT IS IN PARK. WHEN THE CAR IS TURNED OFF, THERE IS AN ALERT THAT COMES UP ON THE DISPLAY SAYING TO PUT THE VEHICLE IN PARK. IT ISN'T EVERY TIME THE ENGINE IS TURNED OFF, BUT IT CAN SOMETIMES TAKE UP TO FOUR OR FIVE TRIES TO GET THE CAR TO REGISTER THAT IT IS IN PARK. I SHIFT TO PARK, TURN THE CAR OFF, GET THE ALERT. SO I TURN THE CAR BACK ON, SHIFT TO A DIFFERENT GEAR, AND THAN SHIFT PACK TO PARK AND TURN THE CAR OFF. AND REPEAT THIS UNTIL I STOP GETTING THE ALERT. WHEN IT IS PUT IN PARK, THE CAR WILL SHIFT SLIGHTLY IF I GET THIS ERROR. I'VE STARTED USING MY EMERGENCY BREAK WHENEVER I GET OUT OF THE CAR TO MAKE SURE THAT IT WON'T ROLL.

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I WAS GETTING A SHIFT TO PARK ERROR MESSAGE WHEN PUTTING MY ACADIA IN PARK. I HAD IT REPAIRED ON 08/18/2018. THE SAME PROBLEM CAME UP AGAIN AND WAS REPAIRED TODAY 10/19/2020. THIS IS A SAFETY ISSUE AND VERY FRUSTRATING. MY WARRANTY EXPIRES ON 12/14/2020 AND BECAUSE THERE ARE SO MANY COMPLAINTS ON THE GM AUTHORITY WEBSITE THIS SHOULD BE A RECALL SO MYSELF AND OTHERS ARE NOT STUCK WITH PAYING FOR SOMETHING THAT IS NO LONGER UNDER WARRANTY. THIS HAPPENS WHEN A VEHICLE IS PUT INTO PARK AND THEN THIS SHIFT TO PARK ERROR MESSAGE COMES UP. SOMETIMES YOU CANNOT EVEN SHUT THE VEHICLE OFF. BOTH REPAIRS INVOLVED REPLACING THE SHIFTER ASSEMBLY. THIS IS A GM PROBLEM AND SHOULD THEY SHOULD ISSUE A RECALL.

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EVERY TIME I PUT THE CAR IN PARK POSITION THE CAR DOESN'T SENSE THAT IT'S ON PARK AND ERROR MESSAGE KEEPS APPEARING IN THE SCREEN SAYING 'SHIFT TO PARK' AND THE CAR REFUSES TO TURN OFF AND IT ROLL AWAY FROM THE DRIVE WAY AND I HAVE TO SHIFT IT BACK TO DRIVE AND AGAIN TO PARK AGAIN AND AGAIN MULTIPLE TIMES TILL THE SENSOR FEELS IT. IT'S A SAFETY HAZARD. I LOOKED UP THE ISSUE ONLINE AND FOUND OUT THAT MOST OF THIS CAR OWNERS EXPERIENCE THE SAME PROBLEM AND THERE'S MULTIPLE LAWSUITS AGAINST GMC FOR THIS ISSUE. THIS CAR IS DRIVEN BY MY WIFE MOST OF THE TIME AND SHE HAS MY KIDS WITH HER IN THE CAR. IT'S A LIFE THREATENING ISSUE! I TOOK THE CAR LAST MONTH TO THE DEALERSHIP AND THEY REFUSED TO FIX IT FOR FREE BECAUSE THE CAR WENT OUT OF WARRANTY BY ONLY 2K MILES, AND I COULDN'T TAKE THE CAR TO THE DEALERSHIP WHEN THIS ISSUE STARTED BECAUSE OF THE COVID. BY THE TIME WE COULD VISIT THE DEALERSHIP WE ALREADY DROVE OVER 5K MILES AND THAT PUTS THE CAR OUTSIDE THE WARRANTY LIMIT.

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WHEN THE VEHICLE NEEDS TO BE SHIFTED TO "PARK", THE CAR NOTIFIES YOU ON SCREEN "SHIFT TO PARK" AND THEN BECOMES STUCK AND YOU HAVE TO KEEP WIGGLING, TRYING TO GET IT TO ACTUALLY PARK UNTIL THE NOTICE GOES AWAY. IT HAPPENS AT RANDOM AND HAS BEEN GOING ON FOR THE LAST TWO WEEKS. THERE SEEMS TO BE NO RECALL, YET THE 2017 2018 MODELS ARE ALL HAVING THIS SAME ISSUE AND THERE IS NO RECALL YET. THIS IS A HUGE SAFETY ISSUE AND WE ARE NOW BEING RESPONSIBLE FOR THE CHARGES TO HAVE IT BEING FIXED. THIS SHOULD NOT BE MY RESPONSIBILITY AS IT IS HUGELY AWARE TO ALL THE DEALERSHIPS AND THERE ARE COURT CASES BEING FILED BECAUSE OF THIS.

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SHIFT TO PARK ISSUE NOT ENGAGING PROPERLY RESULTING IN LIGHTS AND ALARM STAYING ON AND NOT ALLOWING DOORS TO LOCK. OCCURS FREQUENTLY.

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LEFT FRONT HALF SHAFT FRACTURED. WAS MAKING A TURN ON HIGHWAY. VEHICLE HAS 53262 MILES.

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WHILE GETTING AN OIL CHANGE AT MY GMC DEALER THEY DISCOVERED THAT A REAR BRAKE PAD WAS SEPARATING FROM THE BACK METAL PLATE IT WAS ATTACHED. THEY SAID IT WAS A SERIOUS SAFETY ISSUE. THEY SAID IT WAS A MANUFACTURING ISSUE AND NOT THE RESULT OF WEAR. THE DEALER SAID THE CAR SHOULD NOT BE DRIVEN. THEY DID NOT HAVE THE REPAIR PARTS SO I TOOK IT TO TUFFY MUFFLER WHO FIXED IT. THEY CONFIRMED IT WAS DUE TO A MANUFACTURING ISSUE.

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SHIFT VEHICLE INTO PARK. TURN VEHICLE OFF. WARNING LIGHT COMES ON AND SAYS "SHIFT TO PARK." TURN VEHICLE BACK ON. MOVE SHIFTIER FROM PARK TO 3RD GEAR. TURN VEHICLE OFF. WARNING LIGHT COMES ON AND SAYS "SHIFT TO PARK." DO THIS A FEW MORE TIMES AND IT FINALLY STOPS GIVING ME THE WARNING. IT DOES THIS INTERMITTENTLY.

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I HAVE BEEN HAVING ISSUES WITH THE GMC ACADIA'S SHIFT TO PARK FUNCTION. ON A DAILY BASIS WHILE DRIVING, WHEN I STOP THE CAR AND SHIFT IT INTO PARK, TAKE MY FOOT OFF THE BREAK, AND TURN OFF THE IGNITION, THE CAR BEEPS CONTINUOUSLY AND DISPLAYS A MESSAGE THAT THE CAR IS NOT IN PARK. I TYPICALLY HAVE TO TURN THE CAR ON AND OFF MULTIPLE TIMES OR PUMP MY FOOT ON THE BRAKE MULTIPLE TIMES FOR THE MESSAGE AND SOUND TO CLEAR. THE CAR HAS EVEN CONTINUED TO ROLL FORWARD A FEW TIMES AS WELL WHEN SHIFTED TO PARK AND THE IGNITION OFF.

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WHEN I SHIFT TO PARK, WHEN I'M OUT OF MY CAR IT STARTS ROLLING AND SAYING THAT I NEED TO SHIFT TO PARK, EVEN THOUGH I'M ALREADY IN PARK.

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VEHICLE DOES NOT RECOGNIZE WHEN IT IS IN PARK. AT TIMES VEHICLE WILL NOT GO INTO PARK AND MAKES ME CONCERNED FOR MY FAMILY'S SAFETY. MY UNDERSTANDING IS THAT GM IS AWARE OF THIS ISSUE.

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TL* THE CONTACT OWNS A 2018 GMC ACADIA. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IN A STAND STILL AND TURNING OFF THE VEHICLE, THE VEHICLE WOULD START TO BING, LIGHTS WOULD STAY ON, AND DOORS WOULD NOT LOCK. THE SHIFT TO PARK MESSAGE DISPLAYED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO GET REPAIRED WHERE THE MANUAL TRANSMISSION MODE SWITCH WAS REPLACED, HOWEVER THE FAILURE PERSISTED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (CHESROWN CHEVROLET BUICK GMC LOCATED AT 1701 COLUMBUS PIKE, DELAWARE, OH 43015) WHERE IT WAS DIAGNOSED THAT THE SHIFTIER ASSEMBLY NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE MANUFACTURER HAD BEEN INFORMED OF FAILURE, HOWEVER NO ASSISTANCE WAS OFFER. THE FAILURE MILEAGE WAS APPROXIMATELY 38,000. *DT THE CONSUMER STATED THE VEHICLE DISPLAY "SHIFT INTO PARK" ERROR. WHEN PLACING IT IN PARK. THE VEHICLE'S HEADLIGHTS AND INTERIOR LIGHTS REMAINED ILLUMINATED, AS WELL AS THE RADIO. ALSO, THE DOORS WOULD NOT LOCK. THE CONSUMER STATED THE SECTION OF THE SHIFTER THAT BOLTS INTO THE FLOOR NEEDED TO BE REPLACED. *THE VEHICLE WAS REPAIRED. JS

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