2018 GMC Acadia

Had to replace the shifter, harness, and parking assist module to the tune of $1569.00! When it was put into park the system would not acknowledge it was in park...therefore I could not lock the vehicle and an alarm kept going off. My Acadia only has 12,000 miles on it...NO excuse for having to replace those parts with or without a warranty! Dealership said I am not the only one this has happened to...they have replaced a number of them!

The contact owns a 2018 GMC Acadia. The contact stated that while operating the vehicle and shifting the transmission to the Park, the vehicle would either roll forward or backward. An audible warning "Shift to Park" was also activated. The gear shifter was jiggled to correct the failure. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The failure mileage was 25,000.

Shift to park notification keeps coming on after shutting off the car. It obviously has been shifted in to park before turning off the engine, but the notification keeps popping up. I have had the shift harness replaced by a mechanic once alreafy. He says this is the GMC authorized fix. IT DID NOT FIX THe PROBLEM! Of course, he'll put another shift harness for me, but what are the odds that will solve anything. GMC needs to come up with a better solution! It is frustrating and time consuming trying to come up with whichever trick will work to make the notification to away. I am not a very happy customer!

My “Shift to Park” warning light pops up when attempting to park the car and shut off the engine. My wife had the problem at the grocery store and was very upset. This problem is constantly happening, my wife refuses to drive the car. I called the GMC dealer to get it looked at and was told it would be 2 weeks until they could diagnose the problem. Also it would cost $150 to look at it and I see the repair could be between $400 and $2000. The warning lights won’t stop and the constant bell dinging won’t stop until the battery is dead. All anyone has to do is Google “ shift to park” to see this is a defective switch. Many states have filed class action suits. A recall needs to be issued. My car has 33k miles on it.

The contact owns a 2018 GMC Acadia. The contact stated that upon depression of the brake pedal, the brake pedal was depressed to the floorboard without warning. The contact had taken the vehicle to a dealer where she was informed that the brake pads and all four rotors needed to be replaced. The contact then called Brad Deery Motors (112 N. 2nd St, Maquoketa, IA 52060) and was informed to take the vehicle in to be diagnosed. The contact was then informed that only one of the rotors needed to be replaced. The vehicle was repaired however, the failure persisted. The contact also stated that upon attempting to park the vehicle, the shift to park warning message would illuminate on the instrument panel. The contact had to repeatedly shift the vehicle in and out of the park before the vehicle would recognize the shifter in the park position. The manufacturer had been notified of the failures but offered no assistance. The vehicle was not repaired. The failure mileage was approximately 46,000.

I'm getting the "Shift to Park" message when my vehicle is already in the Park position. This issue first started happening in 2019 and I took it to my local GMC service center to be looked at since it was still under warranty. It started happening again about 2 weeks ago. My extended warranty and powertrain has expired, so I'm concerned that the same dealership will charge me for this repair when I take it this week. If this is a known issue with this vehicle, as evidenced by the scores of complaints related to this issue, why isn't there a recall on this vehicle?