general problems of the 2018 GMC Acadia - part 2

4 years ago I would get a shift to park error. This meant my vehicle did not recognize that it was in park. This meant that my vehicle would not lock, turn off the radio or headlights. My husband tried to fix it, but it turned out to be a part that only a dealership could obtain. So $500 later my vehicle was fixed. This was a known problem affecting multiple vehicles/years. Fast forward to the third week of February this year. I again am getting this same error. Took it to the dealership and there is a switch along with a transmission control harness and jumper harness that needed replaced. These parts have to do with the original shifter that was replaced 4 years ago, but of course not covered. So now $668 dollars later my vehicle is fixed. This is another known issue and my repair paper says “replace per bulletin #19-na-206. Now I am pissed. I want to know why these are not a recall. Both times were a huge safety issue. I could not lock my car for pete’s sake. If my car was stolen, what is the first question my insurance company is asking? it would be “ was it locked?” not to mention my personal safety. Anyone could get into my vehicle and wait for me or me and my grandchildren to get in the car. Does human trafficking ring any bells???? what is it that needs to be done to make this a damn recall?.

The shifter, the shift to park displays and dings and stays on the dash after I've put it in park and turned off the ignition. It started the first of 2024 and has gotten worse and now it's almost every time.

Leaving work on January 27th, my vehicle started sounding like a loud truck and it started to smoke. I immediately pull over because something smell like it was burning. That's when I call my insurance company to assist me. So, I had it tow to the nearest mechanic shop. It was a scary movement for me being along at night. I'm very upset about this had happen to my GMC 2018 Acadia, the Cadillac converter left is defect. It is not drivable. It's at the shop for least a month. The mechanic shop have not received the parts because GMC has a back order. This is to long being without transportation. This is unfair where I continue to pay the monthly bill. Please, I asking to investigate on this matter. I called the pep boy mechanic shop today and the manager said it still on back order. What happen to GMC products? hope to hear from someone soon! thanks margie hall (912)414-3035.

The shift to park displays and will not allow the vehicle to shut off. This is the second time this has happened in this vehicle. I have 63822 miles and repaired this same issue about 20000 miles ago. Looked into it and it appeared to be a common issue in this year and model. Looking for some insight on what if anything can b me done. Thank you.

Whining noise from rear axle when 4x4 engaged.

Shift to park issue is getting worse. I couldn’t turn my car off for hours today. The recall is still pending for this and GMC is doing nothing after thousands of class action lawsuits and complaints. Keeping my car running for hours on end while in park because it won’t turn off is causing electrical issues and using tons of gas. I have to get with an attorney at this point because I can’t use my car lots of the times because I can’t leave it running and unlocked all day while I’m at work or at the store. It’s a massive safety issue. GMC needs to take accountability and fix these vehicles. This has been ongoing for 2 years now.

The “steering assist reduced. Drive with care” a/c turns off and fan kicks on high. Transmission temp flatlines. Https://amp. Issuu. Com/emillygrace890/docs/steering_assist_reduced_drive_with_care_2017_gmc_a/s/20209693.

When I put my car in park and go to shut it down, it is not recognizing that it is in park, and will not shut down. I have to spend 30 plus minutes messing with the shifter to try to get it to recognize it is in park when it is indeed in park. I have to start and stop my car a number of times to do so. There have been a number of complaints for this over the years and nothing has been done with this. This can be a costly repair as I have seen results in a new transmission.

For the past 2 years I have been having a problem with the shift to park. It causes my vehicle to not turn completely off therefore draining the battery completely, I have gone through several new batteries because of this issue and has left me stranded needing to uber to purchase a new battery. Recently it started causing issues with my vehicles antilock braking system and the stability control system although I don't know if they are all related but it is causing a hazard to drive around and it it the only vehicle I own.

When putting my car in park and turn the car off. The car dashboard says to shift the car in park and beeps. I repeatedly turn the car on and off until the car reads it as being in park. Or the car will not turn off completely, it will continue to beep, and it will not lock the doors. I have called a GMC dealer about this issue. There is no warning message except to put the parked car in park!.

Vehicle does not recognize that it's in park. Once parked a warning comes on telling you to shift to park. The vehicle does not completely shut off because it does not believe that it is in park.

The vehicle would intermittently display a "shift to park" message and sound alert chiming when moving shifter to park position. The car could not be parked until the chiming and message were dismissed by jiggling the shifter, sometimes after a prolonged battery-draining attempt to end the condition.

Vehicle does not shut off when shift to park. Must put vehicle in gear then shift to park numerous times in order to get the vehicle shut off. Vehicle will not start. Requires numerous attempts applying brake to start.

The vehicle will not shift into park. This is a common problem with this vehicle, many lawsuits. When you walk away one has concerns that the vehicle is actually in park or not.

After shifting to park a message comes in screen that is telling me to shift to park I have put it in park so then I have to restart vehicle and move gear shifter back into park sometimes it works on 1st try then sometimes takes extra try’s to get it to clear.

The thermostat stops working and my a/c stops blowing cold air, and driving assist stops and engine light goes on. It is a rampant problem among GMC Acadias with no reason or fix. Please advise.

The shift to park in my 2018 GMC Acadia was faulty. On many occasions and randomly, the car would be in park but would not turn off, saying I needed to shift it to park in order to turn the car off. This has left me unable to turn my car off resulting in dead batteries and missed appointments and being late for work. This defect is well documented by gm in tsbs pit5616a, 18-na-297, and 19-na-206, which describes the exact symptoms and repair that I had to have completed. This problem has been on going and as a teacher I cannot continue to be late for school because my car, though in park, would not turn off. Given gm’s prior acknowledgement of this defect, I believe reimbursement is warranted. I have never been notified of a recall on this.

When turning off engine it displays "shift to park" and won't shut off. This has been ongoing since I purchased vehicle but is much worse now.

Shift to park and unlocked shifter knob, the shifter knob is capable of shifting from drive to neutral without pressing the unlock switch on the shifter while driving. Vehicle says shift to park when parking vehicle, car will not shut off or lock when code is up.

Stabilitrak warning keeps showing up on dashboard as I turn my vehicle certain down certain roads, round abouts etc like my car shifts or makes it hard to control going around/through certain road conditions.

When I place the gear in park and shut car off, the display states to shift car to park. A loud continuous beep ensues and I would have to start and turn car off several times. The car does not lock nor stop on its own.

The GMC Acadia displays a "shift to park" error. The truck is in park (or appears to be) and the truck says it is not and will not allow it to be turned off. This is a common error with the truck and GMC is refusing to take responsibility and this can cause a fatal error if the truck is not in park and rolls away.

When I park my 2018 GMC Acadia, my infotainment screen states the following warning: "swift to park", but I have already put my car in park. This warning started appearing around 28,000 miles; my currect mileage on my Acadia is 28,379 miles. I have checked if there are any recalls on this issue, but found none, but this issue started appearing in the 2017 models.

Shift to park error when turning off vehicle, which would not allow the engine to shut off. Had to have shifter and harness replaced.

When placing the car into park, dash indicated that the car was not in park. So, emergency brake had be utilized until the problem was determined by a GMC dealer rep. When asked, the rep did stated that this problem was happening with these vehicles. Safety of driver or others was definitely put at risk, car could have rolled out of my driveway or if parked elsewhere. Definitely felt unsafe operating this vehicle. This was happening on a regular basis prior to scheduling an appointment, approximately 2 weeks. Appointment was made at dealer and it was determined that floor shifter had to be replaced. Failure to be able to get the car in park indicated as above. This should be a recall and not a financial responsibility of owner.

The gear system fails to recognize when the car is in park. I have had the gear box replaced once on this car, and it is failing again. The car has 92000 miles. The problem is that I cannot shut the car off completely or lock it because the system does not recognize that the car is in park. My dealer told me last time that the problem is caused by a faulty sensor. Now it's happening again. This is a major issue and GMC needs to correct it. Thankfully I bought an extended warranty so they will have to fix it again, but this is absurd. No other car I've had has ever had this issue.

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!.

When the car is in park it thinks its still in gear and there is an alarm that says "shift to park". Car cant be turned off. It rolls. Its unsafe. It was repaired once for this in 2019. It came back 2 weeks ago. Dealer wont honor correcting the repair.

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!.

When the vehicle is in park, and I attempt to turn vehicle off, I get a messege saying to put vehicle in park. Vehicle will not turn off.

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?.

Car won’t go into park though I’ve shifted to park. Car starts beeping and displays “shift to park!” even though the vehicle is shut off and gear shifter is in park position. I took to dealership, they stated, “GMC needs to recall this, we have to repair every single GMC Acadia we sell with unfortunately the same defective parts” it’s a $500 fix. I just use my parking break everytime I park now.

When I put my car in park and turn off it will randomly say "shift to park" it started doing this in Aug or sept 2019 the car was under warranty and I brought it to a dealer to "fix". Fast forward April 2021 it started to say shift to park again and car is no longer under warranty. Called different dealers even the one I brought the car to fix problem (that was a joke), they know its a problem and saying since that part got fixed in 2019 with a bad part and now there is a a newer fix that should work better, but I will have to pay for diagnostic test and part again. Again they know it is a problem with these cars and it needs to be recalled. I have to turn the car off and on reshift, push the shifter harder, etc to get the message to go away so I can turn my car off.

When I put the vehicle in park to exit the vehicle I get an alert on the dash that says to put the vehicle in park. The vehicle is in fact parked but I can't shut it off or lock it. I have searched and found that there was a class action lawsuit but no recall. The dealership keeps telling me that there isn't a fix for the problem.

Shift to park warning is coming on, I am not able to turn the car off. The car is rolling either forward or backward while in the parked position. I have to turn the car on and off many times plus put it in forward, reverse, neutral and most of the time that still does not fix the problem. The car will not turn off, and it is rolling forward or backward while it is parked.