What 639 owners told NHTSA about the 2017 GMC Acadia Denali

AFTER PARKING THE VEHICLE, SHIFTING INTO PARK AND TURNING OFF THE ENGINE, A WARNING MESSAGE APPEARS STATING TO SHIFT THE CAR INTO PARK. THE CAR IS IN PARK, BUT THERE MUST BE SOME TYPE OF SENSOR FAILURE. I AM PROHIBITED FROM COMPLETING SHUT DOWN OF THE VEHICLE UNTIL I CLEAR THE WARNING MESSAGE. WHEN THIS ISSUE FIRST AROSE, I COULD "JIGGLE" THE SHIFTER A BIT, AND THE MESSAGE WOULD CLEAR. NOW, ABOUT TWO WEEKS LATER, I NEED TO START THE CAR, MOVE THE SHIFTER BETWEEN GEARS, AND THEN BACK INTO PARK. AFTER 2 - 3 TIMES REPEATING THE PROCEDURE, THE WARNING MESSAGE USUALLY CLEARS. THE VEHICLE HAS BEEN TAKEN IN FOR SERVICE. A NEW SHIFTER HAS BEEN ORDERED. THE PART IS ON BACK ORDER.

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MY VEHICLE IS STARTING TO NOT RECOGNIZE THE SHIFTER BEING IN PARK, THEREFORE WILL NOT SHUT DOWN. THE SHIFTER IS MOVED TO PARK BUT THE CAR DOES NOT RECOGNIZE IT AND WILL NOT SHUT OFF. IS HAPPENING MORE AND MORE OFTEN NOW. I HAVE TO WIGGLE IT AROUND SEVERAL TIMES, AND SOMETIMES TAKE IT BACK OUT FOR ANOTHER SHORT DRIVE BEFORE IT FINALLY RECOGNIZES THAT THE CAR IS IN PARK WHEN I WANT TO GET OUT.

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WHEN SHIFTING TO PARK AND SHUTTING THE VEHICLE OFF MESSAGE DISPLAYS SHIFT TO PARK. I HAVE HAD THE SHIFTER CABLE REPLACED AND 3 MONTHS LATER IT IS DOING IT AGAIN. OBVIOUSLY THERE IS ANOTHER ISSUE BUT GM CANNOT FIGURE THE ISSUE OUT.

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EVERY TIME I PARK MY VEHICLE. IT IS IN PARK BUT A MESSAGE DISPLAYS TELLING ME TO PUT THE VEHICLE IN PARK AND IT WILL NOT SHUT OFF.

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SERVICE SIDE DETECTION SYSTEM WARNING CAME ON LAST YEAR. I TOOK IT TO DEALERSHIP SINCE I HAVE EXTENDED WARRANTY TO COVER PROBLEMS LIKE THIS. DEALERSHIP REFUSED TO FIX BECAUSE I HAD TAKEN A LIGHT HIT TO THE REAR FENDER AREA WHERE THE SENSOR IS ON 02/06/2016. FRIENDS TOLD ME THIS IS A MAJOR PROBLEM WITH THESE VEHICLES SO I LOOKED ONLINE AND WAS APPALLED AT THE COMPLAINTS! I AM RETIRED AND ON A FIXED INCOME AND CAN'T AFFORD THE $1,600 OR MORE RIGHT NOW. AS A SENIOR THIS WAS A REASON I PURCHASED THIS VEHICLE. NOW THAT IT DOES NOT WORK I HAVE TO BE EXTRA CAREFUL WITH BLIND SPOTS! THIS WARNING CAME ON AND FUNCTION STOPPED WORKING WHEN CAR WAS TURNED ON.

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WON'T SHIFT TO PARK

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WHEN MY VEHICLE WAS IN PARK & I WAS GOING TO TURN IT OFF IT GAVE ME THIS MESSAGE ACTION TO PARK WHEN IN PARK. THIS HAS HAPPENED SEVERAL TIMES. I HAVE TAKEN IT TO THE DEALERSHIP & NOTHING CAN BE DONE.

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MY HUSBAND AND I WERE IN A VERY SERIOUS CAR ACCIDENT AND I'M CONCERNED BECAUSE OUR AIR BAGS DID NOT DEPLOY. WE WERE TRAVELING ON A DIAGONAL STREET IN CHICAGO AND HE WAS GOING STRAIGHT. MY RIGHT FRONT FENDER HIT HIS RIGHT FRONT FENDER. HIS AIR BAGS DEPLOYED BUT OURS DID NOT. THE ER TOLD ME IT WAS LIKELY I HIT THE STEERING WHEEL AND IT COULD TAKE UP TO NINE MONTHS TO HEAL FROM HAVING WHIPLASH IN MY SHOULDERS AND NECK. MY HUSBAND HAS BEEN DIAGNOSED AS HAVING A CONTUSION. WE HIT REALLY HARD I WAS TRAVELING ABOUT 25 MPH AND HE WAS PROBABLY DOING 45 MPH. THIS IS A REAL SAFETY ISSUE. MY AIR BAGS MAY OR MAY NOT HAVE MADE THE DIFFERENCE BUT I BELIEVE THEY SHOULD HAVE DEPLOYED.

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ACTION REQUIRED SHIFT TO PARK WHEN VEHICLE IS IN PARK WITH ENGINE OFF.

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WHEN I PUT THE VEHICLE IN PARK AND TURN OFF THE ENGINE, I GET AN ALERT "ACTION REQUIRED SHIFT TO PARK" AND THE VEHICLE IS ALREADY IN PARK. THIS STARTED WHEN I HAD APPROXIMATELY 35,900 MILES ON THE VEHICLE BUT BY THE TIME I GOT AN APPOINTMENT WITH THE DEALER, I WAS OVER 36,000 MILES SO THEY SAY IT'S NOT COVERED UNDER BUMPER TO BUMPER WARRANTY ANYMORE. I GOOGLED THE PROBLEM AND THERE ARE NUMEROUS COMPLAINTS ABOUT THE SAME THING, BUT GMC STILL HASN'T INITIATED ANY KIND OF RECALL WHEN THERE IS A PROBLEM THAT I'M SURE THEY KNOW ABOUT.

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WHEN THE VEHICLE IS IN PARK, THE CAR DISPLAYS A MESSAGE 'SHIFT TO PARK' AND WILL NOT LET YOU TURN THE CAR OFF. THIS IS CAUSING ME TO HAVE TO TURN CAR ON AND OFF AND MOVE IT FROM DRIVE TO PARK UNTIL IT REGISTERS.

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I GOT THIS VEHICLE BRAND NEW IN 2016 IT HAS APPROX43000 MILES ON IT. LAST TUESDAY IT WOULD NOT START NOTHING WORKED TOWED TO THE GMX DEALER THEY SAID IT WAS A MAP LIGHT!!!! AND IT RAN THE BATTERY DOWN WELL TODAY IT DID THE SAME THING I DO NOT BELIEVE IT WAS THE BATTERY THE SAME DAY IT WENT OUT I RECEIVED A APPLICAION DOWNLOAD, I HAVE NO IDEA WHAT THAT WAS. I PAID ALOT OF MONEY FOR THIS VWHICLE AND I THINK THERE SHOULD BE A RECALL BEFORE THIS PROBLEM CAUSES DEATH ' THE VEHICLE IS STILL AT THE DEALERSHIP-I CALLED TO REORT THIS PROBLEN TO GMC THE FIRST EVENING NOTING WAS DONE EITHER, CALLED GMC RO TOE DIDNT EVEN SHOW UP

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ON THREE SEPARATE OCCASIONS THIS VEHICLE HAS, WITH NO WARNING, EXPERIENCED A SUDDEN LOSS OF POWER STEERING FOR 2-10 SECONDS PER EVENT. #1 JUNE - 2018 (APROX MILEAGE 30K+): WHILE EXITING THE FREEWAY OFFRAMP AND SLOWING BELOW 40MPH, MY WIFE EXPERIENCED A LOSS OF POWER STEERING FOR 1-2 SECONDS BEFORE REGAINING POWER STEERING. WENT TO A LOCAL MECHANIC AND HE SAID EVERYTHING LOOKED TO BE OK, CND (COULD NOT DUPLICATE). #2 11-18-2018 (MILEAGE 46171): WHILE SLOWING AND TURNING LEFT INTO OUR DRIVE WAY THE CAR EXPERIENCED A SUDDEN LOSS OF POWER STEERING FOR 5-10 SECONDS. I WAS ABLE TO BRING THE CAR TO A STOP AND SNAP A PICTURE OF THE FOLLOWING ERROR MSG: ACTION REQUIRED, STEERING ASSIST IS REDUCED DRIVE WITH CARE. THIS TIME WE WENT TO THE DEALERSHIP WHERE WE PURCHASED THE VEHICLE WITH PICTURES AND AGAIN CND. #3 6-9-2019 (MILEAGE 64916): WHILE COMING OUT OF A LEFT HAND TURN, AT APROX 5MPH AND SLOWING, I BEGAN TO NAVIGATE A RIGHT TURN INTO A PARKING LOT WHEN I EXPERIENCED A SUDDEN LOSS AND RETURN OF POWER STEERING. THE INCIDENT LASTED APRON 2-3 SECONDS, ENOUGH TIME TO HER MY PASSENGER TAKE A PICTURE OF THE FOLLOWING ERROR MSG: ACTION REQUIRED, STEERING ASSIST IS REDUCED DRIVE WITH CARE. I AM TAKING THIS VEHICLE BACK TO THE DEALERSHIP WITH PICTURES OF THE WARNING AND MILEAGE FOR A SECOND TIME. I HAVE NOTICE THAT GM HAD RECALLED NUMEROUS VEHICLES WITH THIS PROBLEM FROM 2017 TILL NOW. NHTSA CAMPAIGN NUMBER: 18V586. GM'S OWN NUMBER FOR THIS RECALL IS 18289. DO THESE VEHICLES NEED TO BE ADDED TO INITIATE A FIX?

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WHEN PARKING THE VEHICLE, AFTER SHIFTING TO PARK, THE DASHBOARD DISPLAYS A WARNING SHIFT TO PARK AND WILL NOT ALLOW THE VEHICLE TO BE SHUT OFF. THE VEHICLE WAS STATIONARY ON A CITY STREET, IN OUR DRIVEWAY, AND ALSO IN A PARKING LOT. THIS PREVENTED ME FROM EXITING THE VEHICLE FOR ABOUT 10 MINUTES EACH TIME, WILL I CONTINUED TO RESTART THE CAR, SHIFT FROM PARK TO ANOTHER GEAR AND THEN RESHIFT INTO PARK.

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WE LEASED A 2017 GMC ACADIA BACK IN OCT. OF 2016. LAST WEEK MY WIFE WAS DRIVING HOME IN WET CONDITIONS DUE TO RAIN AND GOING AROUND 35 MILES PER HOUR WHERE SHE HYDROPLANED THE CAR. LUCKILY WHEN SHE HIT THE CURB, THE CAR CORRECTED ITSELF AND LUCKILY THERE WAS NOTHING MORE SERIOUS. WE TOOK THE CAR TO A LOCAL GARAGE TO INSPECT AND UPON REVIEW, HE STATED THAT ALL 4 TIRES HAVE DRY ROT AND SHOULD BE CHANGED IMMEDIATELY. HE ADVISED US TO GO BACK TO THE DEALERSHIP. WHEN I CALLED TO MAKE AN APPOINTMENT, THEY STATED THAT THE TIRES ARE WEAR AND TEAR AND ARE NOT COVERED HOWEVER I FEEL THESE ARE DEFECTIVE TIRES. WE HAVE 26K MILES ON THE CAR AND THIS OCT. WILL BE 3 YEARS SO WE ARE AVERAGING UNDER 10K A YEAR. I AM ATTACHING PICTURES SO YOU CAN SEE WHAT WE ARE SPEAKING OF AND ASK YOU TO ADVISE US AND OUR DEALERSHIP WHICH IS VAN BUREN BUICK GMC LOCATED IN NEW HYDE PARK, NY. I DO NOT FEEL SAFE DRIVING WITH THESE TIRES AND ASK THAT YOU STEP IN AND ASSIST US. I HAVE 2 YOUNG DAUGHTERS AND DO NOT WANT SOMETHING MORE HAPPEN UNTIL THIS IS ADDRESSED.

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DASH DISPLAYS THAT THE TRANSMISSION IS NOT IN PARK WHEN IT IS FOR SURE.

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WE HAVE HAD NUMEROUS ISSUES WITH THE CARS BRAKES AUTOMATICALLY LOCKING UP WHEN SOMETHING TRIGGERS THE COLLISION SAFETY BREAK. SPECIFICALLY WHEN CROSSING RAIL ROAD TRACKS AFTER A TRAIN HAS PAST. AS A RESULT THE CAR STOPS COMPLETELY AND AUTOMATICALLY WHILE ON RAILROAD TRACKS AND WON'T ALLOW YOU TO MOVE. YOU HAVE TO PUT THE CAR IN PARK, WAIT (ON RAILRAOD TRACKS) AND THEN ATTEMPT TO MOVE BUT IT MAY ACTIVATE IT AGAIN SO YOU HAVE TO DO IT AGAIN. MEANWHILE YOU ARE ON TRACKS, WITH CARS BEHIND YOU HONKING AND SCREAMING. THIS HAS HAPPENED NUMEROUS TIMES, REPORTED IT TO OUR DEALER, SERVICE AND GMC CORPORATE WHERE NOTHING WAS DONE. THEY SAID THEY WOULD PUT IN A "BLACK BOX" LIKE DEVICE BUT NEVER DID. IT IS A MAJOR SAFETY CONCERN FOR MY FAMILY AND ONE THAT GMC IS NOT ADDRESSING ADAQUATELY.

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WHEN I PUT MY CAR INTO PARK TO TURN OFF MY CAR, IT WOULD NOT TURN OFF AND SAID TO PUT CAR IN PARK. I HAVE TO WIGGLE THE SHIFTER, SOMETIMES SEVERAL TIMES. IT HAPPENED RIGHT BEFORE WHEN MY CAR WAS IN AROUND 35,000 MILES. THEY DIDN'T HAVE ANY APPOINTMENTS THAT WEEK. I HAD TO GO TO CALIFORNIA THE NEXT WEEK. I WENT IN YESTERDAY, SINCE IT WAS OVER 36,000 MILES. THEY SAID IT WAS NOT UNDER WARRANTY ANYMORE. I TOLD THEM THE SITUATION. SAID L HAD TO PAY $488.

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SHIFTER ASSEMBLY PROBLEM. WHEN TURNING CAR OFF, YELLOW LIGHT GOES ON AND CAR REMAINS ON AFTER SHIFTING TO PARK.

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VEHICLE IS UNABLE TO SHIFT INTO PARK. I KEEP GETTING AN ERROR MESSAGE TO "SHIFT TO PARK" EVEN THOUGH I AM IN PARK, AND IT WILL NOT ALLOW ME TO TURN THE VEHICLE OFF. I WILL HAVE TO SHIFT THE CAR INTO DRIVE AND PARK ABOUT 25 TIMES BEFORE IT WILL RECOGNIZE THAT IS ACTUALLY IN PARK SO I CAN TURN OFF THE VEHICLE. THIS ONLY HAPPENS WHN THE VEHICLE IS STOPPED AND I AM TRYING TO TURN IT OFF.

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MY VEHICLE WOULD NOT UNLOCK FOR HOURS THEN IT FINALLY DID AND RAN FOR A BIT. THEN WHEN STARTED AGAIN WOULD NOT N. THEN WENT TO BRI G IT IN AND NOTHING WORKED CORRECT. THE SPEEDOMETER WAS AT 0 AND IT WAS SCARY! THE WHOLE VEHICLE WOULD NOT WORK RIGHT AND WHEN I BROUGHT IT IN THEY SAID IT WAS A SIDE SENSOR MODULE AND IT WAS $735 TO REPLACE. MY CAR IS NOT THAT OLD. THEY SAID WETNESS COULD HAVE GOT TO IT. WE LIVE IN MIN EDITS. MANY CARS GET WET. THAT IS ABSOLUTELY CRAZY. THEY ALSO TOLD ME THEY SHARE SOPOSE TO BE COMING OUT WITH A RECALL AND NEW BOXES THAT COVER THESE SENSORS. I WILL BE EXPECTING TO BE REIMBURSED WHEN THIS BECOMES A RECALL WHICH IT DEFIANTLY NEEDS TO BE! I PAID A LOT OF MONEY FOR THIS VEHICLE. THE PRICE OF MINE SHOULD BE ON THIS!

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THE 2017 GMC ACADIA NEEDS TO BE RECALLED FOR THE FAULTY TRANSMISSION CONTROL ASSEMBLY AND THE "SHIFT TO PARK" MESSAGE. FOR REFERENCE THIS IS TECHNICAL SERVICE BULLETIN "TSB 18-NA-297". SOMEBODY WILL EXIT THEIR VEHICLE THINKING THAT THEY ARE IN PARK, THE MESSAGE COMES UP AND THEY IGNORE IT AND GET RAN OVER. THIS IS A SAFETY ISSUE AS WELL AS A QUALITY ISSUE.

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VEHICLE HAD MULTIPLE (MORE THAN 2) WARNING LIGHTS FLASHING ON AND OFF, WHILE RPM AND MPH NEEDLE WOULD FLUCTUATE SIMULTANEOUSLY. THIS WOULD HAPPEN WHILE IN THE DRIVEWAY AND ALSO WHILE IN MOTION. VEHICLE WOULD NOT ACCELERATE WITH ACCELERATOR PEDAL FULLY PRESSED, ESPECIALLY ON AN INCLINE. WHILE THIS WAS OCCURRING I HAD TO EXIT THE HIGHWAY AND TURN AROUND IN AN ADJACENT SUBDIVISION. I COULD NOT GET OUT OF THE WAY OF A CAR IN THE NEIGHBORHOOD BECAUSE I WAS TRYING TO GO FORWARD ON THE STREET DUE TO A SLIGHT INCLINE. IT WOULD ALSO JERK INTO GEAR WHEN MOVING FROM REVERSE AND DRIVE. HAD THIS HAPPENED IN A TRAFFIC INTERSECTION, IT WOULD HAVE BEEN DEADLY. THIS CAR IS UNSAFE. AFTER 6 MONTHS OF BEING 'FIXED' IT HAS STARTED HAPPENING AGAIN. THE DEALERSHIP HAS HAD THE VEHICLE FOR A WEEK THIS TIME WITHOUT BEING ABLE TO FIX IT. THE LAST TIME IT WAS AT THE DEALERSHIP FOR AROUND 10 DAYS.

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WHEN CAR IS PUT INTO PARK A 'ACTION REQUIRED' COMES UP SAYING 'SHIFT INTO GESR' WHICH THE VEHICLE IS ALREADY IN PARK. THEREFORE, WILL NOT SHUT OFF CAUSING THE BATTERY TO DRAIN AND DIE.

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WHEN PLACING VEHICLE IN PARK AND TURNING OFF IGNITION, THE MESSAGE APPEARS 'SHIFT TO PARK'. EVERYTHING IS STILL ON IN THE VEHICLE, LIGHTS RADIO ETC. SOMETIMES I CAN WIGGLE THE SHIFT CONTROLLER AND IT WILL DISAPPEAR OR SOMETIMES I HAVE TO TURN IGNITION BACK ON AND TRY AGAIN TO TURN OFF. SOMETIMES TAKES SEVERAL TIMES TO GET MESSAGE TO DISAPPEAR.

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