Home · 2018 GMC Acadia Limited · Complaints

What 389 owners told NHTSA about the 2018 GMC Acadia Limited

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)

5 of 389 complaints match · Transmission & drivetrain · crash/fire/injury only · clear filters

Sep 24, 2025Transmission & drivetrainElectrical systemFuel system2 injuries

Shifting to park and vehicle stating the vehicle is not in park, won't let me turn the vehicle off. Transmission going out, brought to many shops letting me know that the transmission is not working properly but won't give an engine light if anything is wrong with vehicle, Wont show on readers what is wrong with vehicle. Electrical, Doors will automatically lock and unlock most times lock and locks me in the vehicle having me have to climb through the windows and having to leave my windows open or locks me out the vehicle and can only get in by climbing in the trunk. Testing has been done and brought to GM to figure out the issue, and they replace the computer in it but still has the problem. I have had shops tell me these are all huge issues that needs to have a recall because my vehicle is not the only GMC Acadia that does all this. How is any of this safe for me and my kids.

NHTSA ODI 11689335

Mar 11, 2025Transmission & drivetrainElectrical systemEngineCrash

Sold 2018 GMC Acadia by LEE GMC in auburn. Acadias shift to park was defective, dealership replaced before sale did not disclose, shift to park and transmission malfunctions occurred. I returned Acadia to the dealership several times and they would never properly fix or address my concerns now my vehicle is unsafe to drive. I have documentation to support the claims in my letter, I can send as well if you’d like. Thank you Will send attachment

NHTSA ODI 11647553

Aug 1, 2024SteeringSuspensionTransmission & drivetrainCrash1 injury

On July 26, 2024, I was driving my 2018 Acadia, with my cruise control set to 48 in a 45 MHP zone. Nearing a bad curve, I sneezed. When this happened, I tapped the brakes to disengage the cruise control, my passengers side tires exited the road and with both hands on the wheel I tried to slowly bring my tires back to the road. However, I was unable to gain control and totaled the vehicle. A witness stated that she heard a loud pop coming from the vehicle before the wreck happened. I later learned from my insurance that the vehicle had a Recall 17V516000 on it and I was never made aware of it. I believe that this was a factor in me not being able to control the vehicle.

NHTSA ODI 11605906

Feb 11, 2021Transmission & drivetrainCrash

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.

NHTSA ODI 11395733

Mar 1, 2020Transmission & drivetrainElectrical systemEngineCrash1 injury

VEHICLE WILL NOT ACKNOWLEDGE THAT IT IS IN PARK. FORCES ELECTRICAL TO STAY ON, AND SOMETIMES WILL NOT ENGAGE PARK SO VEHICLE CAN MOVE AS IF I'M NEUTRAL. HAS THUS FAR HAPPENED WITH VEHICLE STOPPED, BUT YOU CAN SOMETIMES SHUT OFF ENGINE AND EXIT VEHICLE WHEN IT IS NOT IN PARK AND CAN ROLL AGAINST YOU, OR ON KIDS EXITING ETC. VEHICLE ROLLED IN GARAGE AND STRUCK, AND COULD HAVE CRUSHED CHILD AGAINST DOOR.

NHTSA ODI 11315398

Working with the data? Download all 389 complaints as CSV · fetched from NHTSA July 26, 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 Limited verdict →