There are 12 owner-reported brakes complaints for the 2018 GMC Acadiain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Stabikitrack error causes ABS to trigger while on the highway. Brought in for repair at dealer and needed new wheel sensor and EBCM, significant safety issue!
“Shift to park” warning keeps popping up on my dash. I looked into it and there are many people saying this is a known issue!
The contact owns a 2018 GMC Acadia C1. The contact stated that his wife was parking in the driveway and upon shifting into the park gear, the vehicle sensor would not register that it was in park, therefore not allowing the engine to be shut off. The contact stated that his wife proceeded to turn the vehicle on and off while continuously shifting the gears until finally placing the shifter into park, and successfully turning the vehicle's engine off. The contact noted that his wife exited the vehicle; however that moments after a loud bang could be heard, and upon inspection, the contact noticed that the vehicle rolled into the garage with the entire front bumper. No property damage was reported. The vehicle came to a stop upon impact. The vehicle was going 3 MPH at the time of the crash. The vehicle did not need to be towed. No warning lights were illuminated however, the "Shift to Park" message will display on the instrument panel. A police report was not filed. The vehicle was not destroyed. The local dealer was contacted however, the vehicle was not diagnosed as the contact was advised that the vehicles VIN was not included in any open recalls. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 90,000.
I have a 2018 GMC Acadia that is now displaying " shift to park " while the vehicle is in park. Upon extensive research I see GMC did issue a recall however, my particular VIN was not included. Its NOW displaying the error message which would lead me to believe it IS part of the recall. I called my local GMC dealership (Langhorne, PA.) and they said this was not covered since my VIN was not issues a recall.
It's a problem that occurs when my Acadia fails to recognize that the gear shifter is in the park position. As a result, the car doesn't fully shut down, leaving the engine running. Unable to shut down vehicle if shift doesn't fully activate brake notice, and could be a safety issue if it truly doesn't park. I have not taken the vehicle to a dealer or services to have the problem reproduced yet. It also has not been inspected yet, however, after doing research online, GMC did put a recall notifying owners that this may be a problem in vehicles from years 2017-2021. When I place the shifter into park, the car does not recognize it, and alerts me to put it into parking. It started appearing 2 months ago.
Cars emergency brake locks up for no reason. Happened on several occasions but last instance burned out actuator and locked up calipers from just sitting on a hill with foot on brake. This is a huge safety issue when it locks up for no reason on a road. It’s stranded me at least twice because it’s hard to undue.
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.
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.
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.
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..
WHEN THE CAR IS SHIFTED INTO PARK, THE DASHBOARD SHOWS A WARNING THAT THE CAR IS NOT IN PARK. I HAVE TO MOVE THE SHIFTER BACK AND FORTH BEFORE THE CAR REGISTERS THAT IT'S IN PARK. HAPPENS ON NEARLY EVERY OCCASION THAT I TURN MY CAR OFF.
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
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026