2018 GMC Acadia: problems, recalls and reliability

“When I'm driving on the highway, I get a message on my dashboard saying steering assist reduced, drive with care. I have taken to the GMC dealership and they will not cover this repair even though it would be covered for 2021 GMC. When this happens, my car makes a loud noise and my steering wheel does not feel right. I do not feel safe.”Owner report · Steering · May 2026

“When I put the car in park and shut off the vehicle, I am getting a shift to park message with an audible sound. The car is in park already. Happens every time almost. It's not showing up as a recall under my vin. Just got the car. I have seen more recall issues on Google and am concerned those will also occur which are more serious and aren't listed either.”Owner report · Unknown Or Other · Apr 2026

“The contact owns a 2018 GMC Acadia. The contact stated while driving at undisclosed speed, the steering assist reduced warning light illuminated. The contact's husband attached a portable diagnostic tester to the vehicle, and P0128 was the failure code. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline and report the failure. The failure mileage was approximately 78,000.”Owner report · Steering · Apr 2026

“The contact owns a 2018 GMC Acadia. The contact stated that upon parking the vehicle and attempting to turn off the vehicle, the message "Shift to Park" was displayed while the gear shifter was in park(P). The contact parked the vehicle and turned off the vehicle after several attempts. The contact related the failure to an unknown recall; however, the VIN was not under recall. The dealer and the manufacturer were not contacted. The vehicle was not diagnosed or repaired. The failure mileage was approximately 149,000.”Owner report · Power Train · Apr 2026

“I am getting the known P0128 code. My engine says it's cold when it's not, my AC isn't working, and I am getting a message that says "Steer assist reduced. Drive with care". This is a known problem and complaint of the GMC Acadia.”Owner report · Engine · Mar 2026

“Vehicle warning light, and noise alerts when placing in park. Vehicle does not register PARKED. Vehicle has to be restarted several times and shifter moved in and out of park until registers as parked. When viewed by mechanic, it was stated there has been a recall to contact manufacturer about recall, but none noted on site.”Owner report · Unknown Or Other · Mar 2026

“The contact owns a 2018 GMC Acadia. The contact stated that while shifting into park(P), the gear shift indicator failed to display that the vehicle was in park(P) on the instrument panel, even though the vehicle was in park(P). The gear shifter was shifted continuously until the gear shift indicator recognized that the vehicle was in park(P) on the instrument panel. No warning lights were illuminated. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 21,000.”Owner report · Power Train · Mar 2026