What 639 owners told NHTSA about the 2017 GMC Acadia Denali

IT SEEMS THAT ALL OF THESE CARS HAVE A FAULTY SIDE DETECTION PROBLEM. PLEASE CHECK INTO IT. IT IS A PAIN AND IS SAD THAT IT SEEMS TO HAPPEN TO ALL OF THEM. THE SIDE DETECTION PROBLEM LEADS TO OTHER KINDS OF PROBLEMS WITH THE COMPUTERS ... THE LIGHT STAYS ON ALL THE TIME

NHTSA ODI 11405591

WHEN THE CAR IS SHIFTED INTO PARK, THE DASHBOARD SHOWS A WARNING THAT THE CAR IS NOT IN PARK. IF I LEAVE THE CAR LIKE THAT, ALL THE ELECTRICAL STUFF STAYS ON. MY HUSBAND WAS AT A GAS STATION, AND PUMPING GAS IS NOT SAFE WITH THE CAR NOT SHUTTING OFF. ALSO I AM CONCERNED IF THE VEHICLE WILL BE ABLE TO ROLL. MY NIECE ALSO HAS AN ACADIA, AND 3 YOUNG SONS ALL STILL IN CAR SEATS, SO SHE HAS TO USE THE 3RD ROW SEAT, SO GETTING HER SONS OUT OF A VEHICLE IS NOT A QUICK CHORE. IF THE CAR WILL NOT SHUT OFF AND GO INTO PARK AND CAN ROLL, IT WOULD BE A DISASTER IF HER CHILDREN WERE STILL IN THE VEHICLE STILL STRAPPED INTO THEIR SEATS.

NHTSA ODI 11404250

SHIFT TO PARK MESSAGE COMES UP RANDOMLY, WHEN PARKING VEHICLE. HAD ELECTRICAL HARNESS REPLACED IN 2019 FOR THIS PROBLEM, THEN HARDLY DROVE IN 2020. NOW THE DEALERSHIP SAID I NEED TO REPLACE THE SHIFT CONTROL ASSEMBLY AT A COST BETWEEN $300-$400. THEY INDICATED THE BUMPER TO BUMPER WARRANTY IS EXPIRED, AND I WOULD HAVE TO PAY.

NHTSA ODI 11403532

THIS OCCURRED WHILE PULLING INTO A PARKING SPACE IN THE AFTERNOON ON MARCH 12, 2021 AT APPROXIMATELY 2:30PM.... UPON DEPRESSING THE BRAKE PEDAL THE PEDAL WENT ALL THE WAY DOWN AND THE CAR LURCHED CRASHING INTO A LIGHT POLE. FORTUNATELY THE LIGHT POLE PREVENTED ME FROM HITTING ANOTHER CAR IN THE PARKING LOT. MY AIRBAG DEPLOYED SLAMMING INTO MY CHEST AND I MANAGED TO PUT THE VEHICLE IN PARK. THERE WAS EXTENSIVE DAMAGE TO MY GMC ACADIA AND AAA AND MY INSURANCE WERE CALLED AND THE CAR WAS TOWED TO A COLLISION SHOP AS INSTRUCTED BY MY INSURANCE. I AM PRESENTLY AWAITING CALLS FROM MY INSURANCE AND THE ADJUSTER. THIS IS SATURDAY AND NOTHING HAS HAPPENED YET. I'M VERY DISAPPOINTED IN THE MANNER THAT THE VEHICLE PERFORMED AND I'M STILL HAVING CHEST PAINS WHERE THE AIRBAG HIT ME.

NHTSA ODI 11402776

THE AIRBAG LIGHT ON THIS CAR HAS BEEN GOING OFF AND ON SINCE IT WAS PURCHASED IN OCTOBER 2017. EVERY COUPLE OF MONTHS THERE WAS ANOTHER PROBLEM WITH THE AIRBAG. THE DEALERSHIP COULD NEVER DIAGNOSE THE PROBLEM. THEY INITIALLY CLAIMED THE SENSORS WERE UNPLUGGED AS A RESULT OF MOVING THE SEAT BACK AND FORTH. NOW THAT THE CAR IS OUT OF WARRANTY, THEY WANT TO DIAGNOSE THE PROBLEM AS A FAULTY SENSOR. ADDITIONALLY, THE AUTOMATIC TRANSMISSION SHIFT TO PARK ISSUE IS OCCURRING. THIS IS WHEN THE CAR IS PARKED AND THE TRANSMISSION SHIFTED INTO PARK, HOWEVER, AN ERROR INDICATOR DISPLAYS SAYING THE CAR NEEDS TO BE SHIFTED TO PARK TO TURN OFF, EVEN THOUGH IT IS IN PARK. THE DEALERSHIP REPLACED THE MANIFOLD 2 YEARS AGO AND NOW THE PROBLEM IS RESURFACING.

NHTSA ODI 11399679

SHIFT TO PARK ISSUE - WHEN SHIFTING INTO PARK AND SUBSEQUENTLY TURNING OFF THE VEHICLE, THE VEHICLE WILL SHOW A NOTIFICATION ON THE DASH SAYING 'SHIFT INTO PARK' AND WILL NOT ALLOW THE VEHICLE TO SHUT OFF. THE VEHICLE DOES NOT RECOGNIZE THE SHIFTER IND THE PARK POSITION, WILL NOT TURN OFF AND WILL ALLOW THE VEHICLE TO ROLL FREELY. THIS IS A SAFETY ISSUE FOR MULTIPLE REASONS. FIRST, THE VEHICLE WHILE IN THE PARK POSITION CAN ROLL FREELY. SECOND, THE VEHICLE WILL NOT TURN OFF AND ENGINE WILL CONTINUE TO RUN, THEREBY RENDERING THE VEHICLE UNABLE TO SHUT DOWN.

NHTSA ODI 11399243

OUR CAR, A 2017 ACADIA, WILL NOT AUTO START, ALARMS GO OFF RANDOMLY, THEFT WARNING COMES ON AND HOOD OPEN WARNING COMES ON EVERY TIME CAR IS STARTED.. OUR DETERMINATION IS THE HOOD LATCH FROM OTHER FORUMS WHICH IS WHAT THE GARAGE ALSO DETERMINED. WE WERE TOLD ONLY TRUCKS WERE BEING REPLACED NOT THE CARS. WE DON'T FEEL THAT THIS IS SOMETHING WE SHOULD BE PAYING FOR SINCE IT IS OUT THERE THAT MANY HAVE THE PROBLEM. THE LATCH CAUSES THE THEFT PROBLEM WHICH EVENTUALLY CAUSES THE CAR NOT TO ADVANCE IN SPEED (CONNECTING TO THEFT) AND COULD CAUSE DEATH ON A MAJOR HIGHWAY WHEN ALL CARS ARE GOING 60 PLUS AND YOUR CAR WON'T MOVE. SOME PEOPLE WERE UNABLE TO START THEIR CARS. THIS IS MAJOR AND SHOULD BE CORRECTED WITH A RECALL. THIS MIGHT NOT SEEM MAJOR BUT IT CAN BE. WE BECAME LEERY IN DRIVING THE VEHICLE. I HAVE A TEEN DRIVER AND THE HOOD OPEN WARNING COMES ON MANY TIMES THROUGHOUT A DRIVE. YOU CAN CLEAR IT AND IT REAPPEARS WHETHER MOVING OR NOT. THIS HAS BEEN GOING ON WITH US FOR A GOOD MONTH. AGAIN, THIS HAPPENS WHILE STATIONARY AND MOVING. IT CAN COME ON AT ANY SPEED WHICH IS THE SCARY PART. WE HAVE LIMITED OUR DRIVE AND DRIVE AT A CONTROLLABLE SPEED BUT THAT DOESN'T MAKE IT SAFER. ONCE WE WERE STATIONARY WHEN THE ALARMS WENT OFF AND COULD NOT CLEAR. ALL THE WARNINGS CAME ON. COULDN'T UNLOCK CAR DOORS WITH REMOTE. WE SHOULD NOT HAVE TO PAY FOR THIS FIX! NO RECALL SHOULD HAVE TO HAVE A DEATH OR INJURY TO BECOME IMPORTANT!

NHTSA ODI 11397487

IT SAYS TO PUT IN PARK WHEN THE VEHICLE IS IN PARK MODE AND THE ENGINE WON'T TURN OFF

NHTSA ODI 11396387

THIS ISSUE HAS HAPPENED TO ME ATLEAST 4 TIMES IN THE LAST 8 MONTHS . I WILL GO TO START MY CAR AND IT WILL SHOW 'NO REMOTE ACCESS ' THEN COMPLETELY SHUT OFF OR DRAIN THE BATTERY . I HA W HAD TO HAVE MY CAR TOWED 3 TIMES AND THEN ONE TIME AFTER 45 MINUTES IT JUST TURNED ON . THIS IS ONLY A 2017 ACDUA ABS I HAVE ONLY HAD IT A YEAR AND A HALF . IT'S HAD LEAKING HEATER FLUID ISSUES AS WELL .

NHTSA ODI 11395133

THE SIDE BLIND ZONE ALERT SYSTEM FAILED LAST YEAR AND CAUSED THE CAR TO DIE AND LEAVE ME STRANDED. THE VEHICLE WAS STILL UNDER MANUFACTURERS WARRANTY AND THE DEALERSHIP STATED THAT THE SIDE BLIND ZONE SYSTEM WAS FAULTY AND REPLACED THE MODULE AND SENSORS. A LITTLE OVER A YEAR LATER AND THE SYSTEM IS DOING THE SAME THING. I WILL HAVE TO REPLACE THE MODULE AND SENSORS. THIS SHOULD NOT BE MY PROBLEM, GMC HAS CREATED A FAULTY SENSOR SYSTEM AND NOW CONSUMERS ARE HAVING TO DISH OUT 700 PLUS DOLLARS FOR THE REPAIR. THERE IS A 'BULLETIN' THAT CONVENIENTLY DOES NOT COVER AL VIN NUMBERS MINE INCLUDED! HOW CAN THAT BE POSSIBLE IF IT'S THE SAME FAULTY SYSTEM? I WOULD LIKE THIS REPAIR TO MADE BY THE MANUFACTURER AND THERE SHOULD BE A CLASS ACTION LAWSUIT REGARDING THIS MATTER. THE VEHICLE DIED AS I WAS PULLING INTO A PARKING LOT, THANK GOD! I HAD TO HAVE IT TOWED AND REPAIRED

NHTSA ODI 11389983

TL* THE CONTACT OWNS A 2017 GMC ACADIA. THE CONTACT STATED THAT WHILE PLACING THE VEHICLE IN PARK, AN ERROR MESSAGE AND WARNING LIGHT WAS DISPLAYED ON THE INSTRUMENT PANEL. THE CONTACT STATED THAT THE MESSAGE SHIFT TO PARK WAS DISPLAYED WHILE ATTEMPTING TO START OR TURN OFF THE VEHICLE. THE CONTACT TOOK THE VEHICLE TO BUICK GMC OF MAHWAH (386 NJ-17, MAHWAH, NJ 07430) WHERE THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 64,000.*DT*JB

NHTSA ODI 11389419

THE ISSUE INVOLVED THE CAR FAILING TO RECOGNIZE IT IS IN PARK AND WILL NOT SHUT OFF WHILE ALSO ROLLING. THE ISSUE FIRST CAME UP IN NOVEMBER OF 2018 AND GMC REPLACED THE SHIFTER ASSEMBLY UNDER WARRANTY. IT HAS HAS REAPPEARED AS OF OCTOBER 2020 BUT THERE IS NO RECALL OR OTHER MEANS TO FIX IT AND IT PRESENTS A HAZARD GIVEN THE CAR TRANSPORTS OUR 3 YEAR OLD SON.

NHTSA ODI 11388693

HEAD LIGHTS ARE VERY DIM MAKING DRIVING THE VEHICLE AT NIGHT VERY UNSAFE. TOOK VEHICLE TO GMC DEALER, TECH SAID THAT HEAD LIGHTS ARE WITHIN GMC SPECS. TOO INSANE TO DRIVE THIS VEHICLE AT NIGHT AN ACCIDENT OR EVEN DEATH CAN OCCUR.

NHTSA ODI 11387395

WHEN THE VEHICLE IS SHIFTED INTO PARK TO TURN OFF THE ENGINE THE SENSOR SHOWS IT IS NOT IN PARK AND WILL NOT LET YOU TURN THE ENGINE OFF.

NHTSA ODI 11386909

ON DECEMBER 29, 2020, I WAS GOING TO VISIT A FRIEND ABOUT 5:30PM. THEY HAVE A DRIVEWAY THAT IS A DOWNWARD SLOPE. I PUT MY CAR (2017 GMC ACADIA DENALI) IN PARK AND TURNED IT OFF. I STEPPED OUT AND LOCKED THE DOORS. I WAS TALKING TO MY FRIEND'S HUSBAND FOR A COUPLE MINUTES, ASKING IF SHE WAS HOME AND IF MY CAR WAS OKAY WHERE IT WAS PARKED. I WANTED TO MAKE SURE HE WAS NOT LEAVING AND WAS BLOCKED IN. I THEN STARTED WALKING TO THE HOUSE. I WAS GOING TO WALK IN THE GRASS AND JUST GO TO THE FRONT DOOR, BUT SINCE IT STARTED TO SNOW, I WALKED DOWN THE DRIVEWAY. MY VEHICLE THEN STARTED ROLLING DOWN THE DRIVEWAY AND KNOCKED ME OVER. IT PROCEEDED TO DRIVE OVER ME. I KNOW I FELL ON MY STOMACH, AS MY HANDS AND KNEES ARE PRETTY BRUISED AND SCRAPED UP. AS THE VEHICLE PROCEEDED TO KEEP GOING, I WAS PUSHED ON MY BACK WITH THE TIRE RESTING ON MY RIGHT HIP. THE GENTLEMAN RAN UP AND TRIED TO PUSH THE VEHICLE OFF OF ME, BUT COULD NOT PUSH IT UP HILL. LUCKILY THE KEYS AND MY PHONE FELL OUT OF MY POCKET AND HE WAS ABLE TO START THE VEHICLE AND DRIVE IT OFF OF ME. I KNOW AT SOME POINT I DID HIT MY HEAD, BECAUSE THE BACK IS REALLY TENDER TODAY. I DID GO TO URGENT CARE TO GET X-RAYS BECAUSE I DO NOT WANT TO GO TO THE HOSPITAL WITH ALL THE COVID CASES HERE IN ST JOSEPH COUNTY. THEY DID SCRUB ALL THE ROCKS AND DIRT OUT OF MY BACK AND HIP AND CLEANED UP MY KNEES. MY EX RAYS CAME BACK WITH NO BROKEN BONES AND I DID NOT HAVE BLOOD IN MY URINE, BUT THEY STILL RECOMMENDED THAT I GO TO THE EMERGENCY ROOM. I AM NOT ABLE TO WALK VERY WELL AND MY HIP IS VERY SWOLLEN. I CONTACTED THE DEALERSHIP BECAUSE MY CAR WAS JUST IN THE SHOP BECAUSE THE SHIFT TO PARK LIGHT KEPT COMING ON IN OCTOBER AND I HAVE MY REPAIR ORDER THAT SAYS THE PROBLEM WAS FIXED ON OCTOBER 22, 2020, WHICH OBVIOUSLY IT WAS NOT.

NHTSA ODI 11386382

MY 2017 GMC ACADIA SHUT OFF LOST ALL POWER FOR A COUPLE MINS AT A BUSY INTERSECTION IN SEPTEMBER 2020. ALL POWER RESTORE AFTER SEVERAL MINUTES AND ATTEMPTS TO RESTART. I TOOK IN TO THE DEALERSHIP HOWEVER THEY COULD NOT DUPLICATE. NOW ON THE 28TH OF DECEMBER 2020, THE VEHICLE LOST ALL POWER AGAIN AT THE SAME BUSY INTERSECTION! NO POWER AT ALL! COULD NOT EVEN TURN MY HAZARD LIGHTS ON TO WARN TRAFFIC THAT WAS COMING UP BEHIND ME ON THE HIGHWAY! THE VEHICLE REMAINED LIKE THIS FOR 10-15 MINUTES! COULDN'T EVEN HAVE ANYONE PUSH IT OFF THE ROAD BECAUSE WE COULDN'T SHIFT IT TO NEUTRAL EITHER. I TOOK IT BACK TO THE DEALERSHIP AS GM ADVISED AND THEY STILL COULD NOT DUPLICATE. THE DEALERSHIP TRIED BUT CANNOT MAKE SENSE OF WHY THIS KEEPS OCCURRING RANDOMLY. I HAD MY SMALL CHILDREN IN THE CAR THIS TIME AND WE ARE LUCKY WE DID NOT GET REAR ENDED! I FEAR THAT MY FAMILY IS NOT SAFE IN THIS VEHICLE.

NHTSA ODI 11386282

SHIFT TO PARK WARNING TURNS ON WHEN GEAR SHIFTER IS IN PARK AND WHILE ATTEMPTING TO TURN OFF THE VEHICLE

NHTSA ODI 11377509

AT 95,800 MILES THE AUTOMATIC TRANSMISSION FAILED CATASTROPHICALLY. THERE WAS NO WARNING OF THE FAILURE. AFTER STOPPING FOR A BRIEF TIME ON AN INTERSTATE HIGHWAY, UPON RESUMING THE TRIP THE VEHICLE STARED OVER-REVVING AND SEARCHING FOR SHIFTS. WHEN A SHIFT POINT WAS FOUND THERE WAS A LOUD BANGING NOISE WHEN THE GEAR ENGAGED. THE VEHICLE REMAINED DRIVEABLE TO DELIVER TO A REPAIR FACILITY WHERE IT WAS DIAGNOSED AS A COMPLETE TRANSMISSION FAILURE. THE VEHICLE HAS BEEN MAINTAINED METICULOUSLY AND ALL ROUTINE SERVICE WAS PERFORMED BY AUTHORIZED GM DEALERSHIPS.

NHTSA ODI 11376922

VEHICLE IS PUT INTO PARK WHEN STOPPED IN A PARKING LOT OR IN MY GARAGE BUT THE MESSAGE ON THE DASH INDICATES IT IS NOT IN PARK. THIS HAPPENS INTERMITTENTLY. THE POWER REMAINS ON WITH LIGHTS NOT SHUTTING OFF. SHIFTER HARNESS WAS REPLACED IN JULY 2020 PER BULLETIN 19-NA-206. THE PROBLEM SHOWED UP AGAIN 3 MONTHS LATER.

NHTSA ODI 11376358

GEAR SHIFT WOULD GO INTO PARK BUT WOULD NOT TURN OFF ENGINE, LOCK DOORS, TURN OFF LIGHTS. WARNING LIGHT READ TO "PLACE IN PARK."

NHTSA ODI 11376215

WHEN PUT IN PARK, I SHUT THE CAR OFF AND IT SAYS TO PUT IT IN PARK. IT'S IN PARK, AND WHEN I OPEN THE DOOR, THE HORN SOUNDS BECAUSE IT THINKS IT ISN'T IN PARK, BUT WHY WOULD IT LET ME OUT OF THE CAR, AND LOCK IT IF IT WASN'T IN PARK?

NHTSA ODI 11375666

WHILE DRIVING IN THE RAIN ON A HIGHWAY, I EXPERIENCED THE BLIND SIDE DETECTION WARNING . THE SYSTEM SHUT ITSELF DOWN AND NO LONGER GAVE ANY SIDE DETECTION AT ALL. AFTER CONTACTING GMC, THEY SAID THERE WERE NO RECALLS ON THE VEHICLE. I SAW A SERVICE BULLETIN ONLINE, N172097060, BUT THEY SAID MY VEHICLE WAS NOT INCLUDED.

NHTSA ODI 11375076

SHIFT TO PARK NOT ENGAGING INTO PARK POSITION,IT WAS STATIONARY

NHTSA ODI 11373640

PARK TO SHIFT WARNING WHEN TRYING TO SHUT OFF VEHICLE. PROBLEM "FIXED" 12/28/2108 BUT RESURFACED AGAIN OCTOBER 2020. NOW "OUT OF WARRANTY" MANY POSTS WITH OTHER OWNERS EXPERIENCING RECURRING ISSUE. DOES NOT SEEM TO BE A CONSISTENT FIX. NEW SHIFT MECAHNISM, NEW WIRING HARNESS AND "BENDING" THE METAL CONTACT POINT THAT DEPRESSES THE SWITCH TO ELIMINATE THE WARNING "LOCKOUT" ARE THE MOST COMMON FIXES. I BELIEVE THIS WIDESPREAD OF AN ISSUE SHOULD BE ADDRESSED BY GMC INSTEAD OF BURDENING OWNERS OF AFFECTED VEHICLES WITH THE COSTS OF "TRYING" DIFFERENT FIXES. THANK YOU

NHTSA ODI 11372843

INSTRUMENT CLUSTER DISPLAYS "SHIFT TO PARK" EVEN AFTER PUTTING THE CAR ON PARKING. BECAUSE OF THIS, DRIVER CAN BE STRANDED, UNABLE TO SHUT THE ENGINE OFF WHICH MAY DRAIN BATTERY, OR EVEN VEHICLE MAY ROLL OVER IF THE VEHICLE WASN'T PARKED PROPERLY BECAUSE OF THIS. GM SHOULD EXTEND THE WARRANTY FOR THIS ISSUE TO ALL THE VEHICLE OWNERS SO THAT THEY DON'T HAVE TO PAY OUT OF POCKET AFTER WARRANTY EXPIRES.

NHTSA ODI 11372849