Four problems related to warnings have been reported for the 2018 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 GMC Acadia based on all problems reported for the 2018 Acadia.
My 2018 GMC Acadia is having the shift to park error. Causing it to not park; or error it causing us not to be able to turn vehicle off or know if it's in park. It pops up multiple times.
Shift to park warning when parking and shutting down vehicle. Shifter is in park but will not shut off electrical system of vehicle.
When parking car it keeps telling us to park when it is in park and we can turn it off.
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. .
| Warnings problems | |
| Rearview System Braking problems |