Home · 2018 GMC Acadia Denali · Complaints

What 389 owners told NHTSA about the 2018 GMC Acadia Denali

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (389)Crash / fire / injury (10)Transmission & drivetrain (162)Electrical system (108)Engine (32)Steering (24)Brakes (21)Electronic Stability Control (esc) (12)Fuel system (9)Lane Departure (6)Backup camera & sensors (5)Seats (5)

Newest first · 389 complaints · page 16 of 16

Apr 3, 2019Transmission & drivetrain

WHEN I GO TO PUT CAR IN PARK AND GO TO TURN IT OFF IT SAW SHIFT TO PARK ON THE INFORMATION SCREEN. THE SHIFTER IS IN PARK AND P FLASHES ON AND OFF ON THE SHIFTER. GMC HAS SAID THEY DO NOT HAVE A FIX FOR THIS. THIS IS A SAFETY ISSUE IF YOU THINK YOU'RE IN PARK AND GO TO GET OUT AND IT IS NOT.

NHTSA ODI 11193733

Mar 23, 2019SteeringSpeed controlBrakesCrash4 injuries

IN MOTION ON THE HIGHWAY 401 NORTH ONTARIO CANADA, THE VEHICLE ERRATICALLY INCREASED SPEED AND BRAKES WERE NOIR EFFECTIVE, LOST CONTROL OF THE STEERING WHEEL WHICH CAUSED A MASSIVE ACCIDENT INVOLVING MULTIPLE CARS AND RESULTED IN MULTIPLE INJURIES. *DT

NHTSA ODI 11191133

Mar 22, 2019BrakesEngineCrash4 injuries

TL* THE CONTACT RENTED A 2018 GMC ACADIA. WHILE THE CONTACT'S FRIEND WAS DRIVING 40 MPH, THE ENGINE REVVED AND THE VEHICLE ACCELERATED ON ITS OWN. THE BRAKES FAILED TO STOP THE VEHICLE. AS A RESULT, THE VEHICLE DROVE THROUGH A PARTITION AND CRASHED INTO A BRICK WALL. THE AIR BAGS DEPLOYED. ALL FOUR OCCUPANTS IN THE VEHICLE WERE INJURED AND RECEIVED MEDICAL ATTENTION. THE CONTACT SUFFERED CHEST PAIN, ANOTHER OCCUPANT SUSTAINED A CUT ON THE HEAD, AND THE OTHER TWO OCCUPANTS SUFFERED FRACTURES. A POLICE REPORT WAS FILED. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE VEHICLE WAS DESTROYED AND TOWED TO A TOW LOT. THE FAILURE MILEAGE WAS UNKNOWN. .*BF .*BF 'PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB

NHTSA ODI 11190983

Feb 18, 2019Speed control

MY ACADIA STALLS DURING ACCELERATION USUALLY WHILE GOING ABOUT 40-50 MPH AND PRESSING GAS PEDAL TO INCREASE TO HIGHWAY SPEEDS. ITS HAPPENED NUMEROUS TIMES OVER THE PAST SEVERAL MONTHS

NHTSA ODI 11180959

Jan 23, 2019Transmission & drivetrain

I FINANCED THIS VEHICLE IN MAY 2018 THROUGH A GMC DEALERSHIP. IT IS JANUARY 2019 I STARTED GETTING ALERTS ONCE I PUT MY CAR IN PARK AND TURNED THE MOTOR OFF. THE WARNING ALERTS STATED ON THE DASHBOARD "ACTION REQUIRED -SHIFT TO PARK-" EVEN THOUGH IT IS IS PARK. THE ALERT IS LOUD AND WILL NOT GO OFF. I HAVE TO START THE CAR AGAIN AND ADJUST THE GEAR SHIFT A FEW TIMES BY MOVING IT TO DRIVE, NEUTRAL OR REVERSE BEFORE THE VEHICLE RECOGNIZES THAT IT IS IS PARK AND THE ALERT LEAVES THE SCREEN AND THE SOUND GOES OFF. SOMETIMES IT TAKES A FEW MOMENTS OF MOVING THE GEAR SHIFT BEFORE I AM ABLE TO LEAVE THE VEHICLE. THIS IS HIGHLY INCONVENIENT ESPECIALLY WHEN YOU ARE IN A HURRY TO LEAVE THE VEHICLE. I AM EXTREMELY FRUSTRATED BECAUSE THIS IS A BRAND NEW VEHICLE. I CONTACTED THE DEALER AND THEY IMMEDIATELY ASKED ME WAS THE CAR STILL UNDER 36,000 MILES. THANKFULLY IT IS. I ENTERED MY VIN NUMBER IN THIS DATABASE AND NO RECALLS HAVE CAME UP FOR MY MODEL ODDLY. BUT FOR A DIFFERENT MODEL OF THE GMA ACADIA 2018 THERE IS 2 RECALLS. IRONICALLY, THE SAME COMPLAINT HAS BEEN REPORTED.

NHTSA ODI 11171756

Dec 11, 2018Transmission & drivetrain

WHEN I PUT THE IN PARK, IT DOES NOT RECOGNIZE THAT THE VEHICLE IS ALREADY ENGAGED. THE CONSOLE DISPLAYS TELLS ME TO PUT VEHICLE IN PARK AND BEEPS. I HAVE TO KEEP MOVING THE GEAR SHIFT FROM REVERSE TO NEUTRAL TO PARK SEVERAL TIMES BEFORE IT RECOGNIZES THE VEHICLE IN ENGAGED IN PARK. THIS HAS BEEN HAPPENING ABOUT 8 MONTHS OR SO. I HAVE MENTIONED IT TO THE DEALER AND THEY TELL ME THEIR ARE NO RECALLS FOR MY PROBLEM, NOT EVEN RECOGNIZING MY PROBLEM WITH THE VEHICLE.

NHTSA ODI 11160732

Nov 16, 2018Lights

DRIVING AT NIGHT , IF IT IS RAINING, HEADLIGHTS ARE NOT BRIGHT ENOUGH. SO BAD IT'S LIKE THERE NOT ON. THESE PROJECTION LIGHTS ARE USELESS. I HAVE HAD TWO NEAR MISSES BECAUSE OR THIS PROBLEM THE OLDER STYLE LIGHTS WERE SO MUCH BETTER, MY TRUCK HAS THE OLDER STYLE H4 BULBS AND THEY ARE SO MUCH BRIGHTER.

NHTSA ODI 11152058

Oct 11, 2018Electrical systemSeatsElectronic Stability Control (esc)

THE SERVICE STABILTRAK NOTIFCATION KEEPS COMING ON AND SHUTTING OFF ON ITS OWN WHILE IN MOTION ON A STREET AND IT HAS ALSO HAPPENED WHILE ON THE HIGHWAY. IT HAS OCCURRED AT DIFFERENT SPEEDS AND SEVERAL TIMES WITH DIFFERENT PEOPLE DRIVING.THE DEALERSHIP CAN'T FIGURE OUT WHY AND IT DOESN'T SHOW IT EVEN CAME ON AT ALL. WHEN IN MOTION ON A STRRET GOING 46MPH THE CAR TRIED TO AUTO CORRECT PULLING ME OUT OF MY LANE BY ITSLEF. IT WAS A STRAIGHT STREET WITH NO CURVES WHERE THIS OCCURRED. THANK GOD THERE WASNT A CAR IN THE LANE NEXT TO ME. THE SIDE MIRRORS RESET THEMSELVES ALL THE TIME. IF I MOVE THE SEAT AND THEN HIT THE MEMORY BUTTON SO IT WILL GO TO THE SET POSITION THE SEAT DOESN'T MOVE AT ALL. I HAVE HAD RENTAL CARS MORE THAN MY ACADIA THE PAST 2MONTHS WHILE THE DEALERSHIP TRYS TO GET THESE ISSUES FIXED. I LOVE THE CAR BUT AM GETTING MAD WITH ALL THESE ISSUES.

NHTSA ODI 11139662

Sep 7, 2018Electrical system

I PURCHASED THE WIRELESS CHARGER. I RECEIVED THE GM DOCUMENT STATING WHAT VERSION OF PHONE I NEEDED FOR THE CHARGER TO WORK. I PURCHASED A PHONE AND THE CHARGER DOES NOT WORK. THE DEALER RESEARCHED THE PHONE AND THERE ARE ONLY SPECIFIC MODELS MANUFACTURED IN THE SAME YEAR THAT WORK FOR THE CHARGER. I HAVE TESTED WITH 5 DIFFERENT MODEL PHONES AND ONLY ONE WORKED. THIS OPTION IS A WASTE OF MONEY AND NOT ADVERTISED APPROPRIATELY NOR DOES THE GM BROCHURES OR WEBSITE PROVIDE ADEQUATE INFORMATION TO NOTIFY THE CONSUMER OF THE ISSUE.

NHTSA ODI 11128086

Jul 30, 2018Body & structure

FRONT SUNROOF EXPLODED ON JULY 25, 2018. DRIVING DOWN ROAD HEARD LOUD GUN SHOT LIKE SOUND AND THE GLASS STARTED POURING IN. MOST THE GLASS WENT TO THE BACK SEAT WHERE MY 4 AND 5 YEAR OLD WERE IN THEIR CAR SEATS. WE WERE HEADED ON VACATION FORM ARKANSAS TO THE BEACH IN ALABAMA. THE VEHICLE WAS IN MOTION. TWO LANE HIGHWAY IN THE MIDDLE OF NO WHERE NO CARS IN SIGHT. WEATHER WAS CLEAR.

NHTSA ODI 11114685

Jul 14, 2018Seats

FRONT SEATS FEEL LOOSE AND LIKE THEY SHIFT. WHEN THEY SHIFT AND MOVE A POPPING NOISE IS HEARD. THE SHIFTING AND POPPING NOISE HAPPENS IN AND OUT OF CORNERS, GOING OVER DRIVEWAY/PARKING LOT APRONS. THE SENSATION IS UNPLEASANT AND IRRITATING. HAVE SPOKEN TO DEALER AND AUTO BODY SHOP. ASSOCIATES CLAIM SIMILAR PROBLEM EXISTING WITH YUKON'S. DOES GMC HAVE A SEATING PROBLEM OR RECURRING DEFECT?

NHTSA ODI 11111356

Jul 7, 2018Transmission & drivetrain

WHEN YOU PUT THE SHIFTER IN PARK IT DOES NOT RECOGNIZE & CABIN ALARM STARTS TO BEEP. THE VEHICLE WILL ALSO LEAVE ITS HEADLIGHTS ON OVERNIGHT & DRAIN YOUR BATTERY. TOOK TO DEALER AND THEY COULDN'T DO ANYTHING ABOUT IT. IT'S BEEN 2 WEEKS AND NO LETTER OF RESOLUTION FROM MANUFACTURER AS THE DEALER SAID.

NHTSA ODI 11110057

Jun 25, 2018Visibility & wipers

DRIVING STRAIGHT ON FREEWAY WHEN REAR PANORAMIC SUNROOF EXPLODED WITH THE SOUND LIKE A GUNSHOT. THE GLASS IS SHATTERED OUTWARD STILL WITH PHOTOS TO SHOW THE OUTWARD EXPLOSION.

NHTSA ODI 11103918

Apr 19, 2018Seat beltsSeats

PASSENGER SEAT SITS LOW ON THE FLOOR WITH MY SHOULDERS UNDER THE WINDOW SHELF AND NOT ADJUSTABLE UP OR DOWN, THE SEATBELT IS ALSO NOT ADJUSTABLE AND HIT RIGHT UNDER MY CHIN. NO WAY OF GETTING AWAY FROM BEING INJURED OR DECAPITATED IN A CRASH. IM 5'5"

NHTSA ODI 11089001

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Working with the data? Download all 389 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 GMC Acadia Denali verdict →