2019 GMC Acadia other reported problems

UNKNOWN OR OTHER

shifter micro-switch is not working and is available for inspection upon request. Vehicle is not shutting off as it is indicating shift to park. The vehicle unable to shut off can cause issues while parked in the garage still running and worried about causing a fire. Problem diagnosed by private individual but have plans on taking it to dealership. The shift to park indicator issue has been occurring for almost a year and has progressively gotten worse. I have noticed other vehicles with the same make/model/year have had similar issues with known defects that a recall was issued.

NHTSA complaint #11754369 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I am submitting this complaint to request that NHTSA investigate a potential safety defect involving the engine coolant temperature monitoring system, thermostat/engine coolant temperature sensor system, and its relationship to reduced steering assist in 2019 GMC Acadia vehicles. My 2019 GMC Acadia, currently at approximately 61,500 miles, has experienced the following symptoms: • The engine temperature gauge remains flat or reads abnormally low/cold. • The cooling fans run continuously at extremely high speed, creating a loud "screaming" fan noise. • The vehicle displays the warning message "Steering Assist is Reduced — Drive with Care." • The vehicle has a history of diagnostic trouble code P0128, "Engine Coolant Temperature Below Thermostat Regulating Temperature." I am concerned that these symptoms are related and represent a potential safety defect rather than an isolated thermostat or cooling-system repair. GM has issued bulletin PIT5967, "Service Steering Message With P0128," which applies to GMC Acadia vehicles from model years 2017 through 2023. The bulletin states that when P0128 is present, the ECM may be reading coolant temperature incorrectly and that a "Service Steering Message" may be displayed to protect the steering gear in the event of an undetected overheating condition. GM instructs technicians to diagnose and repair P0128 first. GM bulletin 17-NA-158 also describes a relationship between P0128, an invalid coolant-temperature signal, and the "Steering Assist Reduced, Drive With Care" warning. The bulletin explains that the steering module relies on valid coolant-temperature information to provide additional steering assistance under cold conditions. When the coolant-temperature signal becomes invalid, this function can become inoperative, potentially resulting in a heavier-than-normal steering feel.

NHTSA complaint #11753437 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

WHEN I PUT THE CAR IN PARK, I GET AN ERROR MESSAGE THAT SAYS SHIFT TO PARK AND IT TAKES PUTTING IN PARK NUMEROUS TIMES TO GET IT TO CLEAR SO I CAN TRUN THE CAR OFF AND LOCK IT. I KNOW THERE HAVE BEEN SOME MODELS THAT HAVE BEEN RECALLED DUE TO THIS PROBLEM, HOWEVER MINE IS NOT INCLUDED IN THAT RECALL. I WOULD LIKE TO KNOW WHY IT IS NOT INCLUDED AND IF THERE IS ANY HELP AVAILABLE TO CORRECT THIS ISSUE.

NHTSA complaint #11752377 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

For the past 4 months after turning off the engine, my vehicle is failing to recognize that it is in Park. I am getting a message on my display stating “Shift to Park”. This is preventing my vehicle from shutting down.

NHTSA complaint #11750445 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I purchased vehicle used 2 years ago last year. I noticed the air conditioner was not cooling. I summed it up too, and extremely hot summer.This summer I did the same thing.I took it in immediately. Catastrophic, I think I bought it like this. It fell apart, the air conditioning compressor fell apart.There is like shrapnel through everything, and they have to go through and clean everything out.It's gonna cost me over two grand. But it only be in 40000 miles on it. I understand it's a twenty nineteen, but owner said at forty thousand miles.This should never happen.

NHTSA complaint #11749244 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Steering assist code pops up and then the temperature gauge goes down and the air stops working and the screen in the cars starts going all crazy. Shift to park code keeps coming up and keeps all electronics on in car

NHTSA complaint #11749323 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shortly after purchasing my 2019 GMC Acadia with 52,000 miles on it, my wife parked the vehicle in our driveway and shifted the transmission into Park. When she pressed the push button to shut the vehicle off, the instrument cluster displayed a "Shift to Park" message even though the shifter was already in the Park position. Because the vehicle did not recognize that it was in Park, it would not shut off completely. The radio remained on, and the doors could not be locked. The only way to get the vehicle to shut off was to repeatedly shift from Drive to Park until it finally recognized Park. This occurred multiple times. After researching the problem, I discovered that many other GM owners have experienced the same "Shift to Park" failure. I believe this is a widespread defect that should be investigated because it can prevent a vehicle from shutting off properly, leave electrical accessories powered on, drain the battery, and prevent the vehicle from being secured when parked.

NHTSA complaint #11746961 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My car will not shut off when shifted into park. I get a shift into park message.

NHTSA complaint #11739334 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I am getting the 'SHIFT TO PARK' error message when I put the vehicle in park. When I looked up the error this is what I got... but I don't see a recall for my vehicle. The "Shift to Park" message in GMC Acadias (2017–2019, primarily) is a common, known issue caused by a faulty microswitch in the shifter assembly that fails to recognize when the car is in Park. This defect prevents the engine from shutting off, drains the battery, and requires a replacement of the shifter switch or assembly.

NHTSA complaint #11736252 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My 2019 GMC Acadia suffered a "major trans fluid leak" specifically from the transmission accumulator feed pipe. Because of this leak, the transmission lost its necessary hydraulic pressure, leading to "internal damage". This is why I experienced harsh shifts and a complete "missing 3rd gear". This exact part and failure mode are the center of NHTSA Recall 20V668. The recall warns that missing bolts on the accumulator can cause a fluid leak, progressing to a total loss of propulsion—which is exactly what has happened to my vehicle.

NHTSA complaint #11733076 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

2109 Acadia. The gear shift would not register as being in park when it actually was in park. This created an issue of the interior lights and radio not being turned off when the driver door was opened, posing the possibility of the battery being drained and the driver stranded. Upon searching, it was learned many Acadias have had this issue, including a friends'. This was reported to GMC Executive Resolution Team and that it cost us $341.38 to get it repaired. They refused reimbursement and have not issued a recall even though many Acadias are involved in this problem.

NHTSA complaint #11732786 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Park to shift issue - the vehicle did not register that I was in park, jerked hard when trying to place in gear, did not register the PROPER gear (reverse, neutral, drive), would NOT unlock doors to let passengers out even if it were an emergency. Seems to be triggered on inclines but have also been having issues on flat ground. Other Acadia's apparently have a recall for this issue but my VIN does not register as recalled which is not acceptable. https://www.quillarrowlaw.com/blog/gmc-acadia-shift-to-park-recall-what-owners-need-to-know/ THEN trying to accelerate on road it acted as though in neutral, would only barely function in low gear. Again, gear shifting did not respond. The fab did not register to unlock the car (it has a new battery) or the trunk, or start the car just prior to the issue revealing itself.

NHTSA complaint #11728432 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

In November 2022, I started getting a dashboard "shift to park" on my 2019 Acadia after I had parked and shut the vehicle off. At the time I took it into service to have it looked at/repaired, they told me there would probably be a recall on this issue,as it seemed to be a frequent problem, and I would get a refund for the repair. That recall never happened, and now my car is once again displaying the same issue. The dealership will not cover the repair, and I will be responsible, as it is out of their 2 year warranty window. I can't just ignore this issue and keep driving, as with the "shift to park" display, there is a constant alarm that doesn't stop unless the park switch recognizes the car is in park, even when it is shut off. I feel this issue needs to be placed under a recall, and I should not have to pay AGAIN for it to be repaired.

NHTSA complaint #11726065 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Error shift to park it come and go all the time. You cannot lock your car when this happens. Cost $500.00 to repair.. common problem for r This year.

NHTSA complaint #11724982 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shift to park error on dashboard When turning the car off and it is in park, the car does not register that it is in park and continues to run electronics in the car. Causing the car to show the error on the dashboard. This runs the battery down and car may jump out of park and roll. Asked dealer to look at it and they refused due to it not being on the recall list for my vin #. No, dealer refused and no other person will touch this issue, since its electronic in the vehicle and only the dealer can fix. Had it to another repair shop that informed me of this information. No known abnormalities prior to the incident that occurs every time you try to shut off the vehicle. Causing several attempts to turn the car off and make sure it is off and does not move on its own.

NHTSA complaint #11723610 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The engine temperature gauge was reading cold when driving for 40 minutes and the fan was running on high. Also said steering assist reduced. Brought it in and had to replace the thermostat, because of the code they received. That fixed the issue.

NHTSA complaint #11723418 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My car will be in park and it always says shift to park when its in park , this is very unsafe. Also when I change gears from park to drive or reverse the RPM revs up gets stuck then drops quick causing the hesitation and then kicks in.

NHTSA complaint #11721476 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My park to shift to park warning keeps coming on. It was replaced under warranty once and came on again comes and goes and dealership is not replace it again saying it isn’t tripping a code so it won’t get covered under the parts warranty.

NHTSA complaint #11710294 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shift to park caused by a faulty micro switch. Woukd take up to 30 min to get car in park, leading to engine shutdown failures and possibly battery drain I did replace battery before I knew this was causing this. Messages did appear saying this was an issue ,must shift to park but no indication of how to do it. I got this repaired at barkley GMC Dec 29:30

NHTSA complaint #11707854 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Won't shift into park alert came on. Vehicle wouldn't shift into park. Danger of vehicle roll off? Took to GM dealer who replaced GM part 13545094 transmission controller aka shifter assembly. It is believed this defect was detected and recalled on 2018 GMC Acadia models. My 2019 was made in 2018. In service date 10/04/18.

NHTSA complaint #11705658 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shift to Park Issue - this is a know issue/recall for the 2019 GMC acadia yet it when I enter my VIN number the recall doesn't show up as a problem. YET it took me 10 tries yesterday to try and turn my car off because each time I went to turn it off, I got the message to Shift it to Park. This has been occurring weekly since I purchased the used car in August 2025.

NHTSA complaint #11704308 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

There are 2 issues im experiencing. The first is the vehicle won't allow me to shut down the engine because it doesnt recognize that its been shifted into "park". Ive already paid close to 800.00 to.have this repaired because my model year is not covered in the recall. Today, it started doing it again. The safety issue is that either I, my wife, or my teenage daughter (depending on who is with the vehicle). Can be left stranded, unless we pop the hood and disconnect the battery. The second issue is that the tire pressure monitor is no longer working. It is sending warnings that our tire pressure is low. When its not. The safety issue is needing to pull to the side of the road to check the tire pressure and also not knowing when the vehicle may actually have a low tire.

NHTSA complaint #11703580 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Vehicle is in park, and the shft sensor does not recognize the shifter is in park. Won't let you turn off rhe car.

NHTSA complaint #11702221 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shift to park error message when in park.

NHTSA complaint #11702369 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Thermostat stuck open and a steering assist light came on engine temp needle at zero. Check engine light came on, Had to have thermostat and coolant engine temp sensor replaced

NHTSA complaint #11701151 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I'm going to have to replace my thermostat and most likely my sensor. It will pop up saying (steering assist is reduced drive with care) my temperature gage on my dash will sometimes will not go up, my heat is acting funny. I've had also when I put it in park saying it's not actually shifted into park.

NHTSA complaint #11701179 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

When in park the car is alerting to “shift to park”.

NHTSA complaint #11701044 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I bought a car about 2 months ago and they did not tell me the thermostat was bad and they won’t cover it.

NHTSA complaint #11701096 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

shift to park issues when placing the vehicle in Park

NHTSA complaint #11699561 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The put in park shows after engine is turned off, have to restart and shift out of park and back to park. This could take several times to accomplish.

NHTSA complaint #11698161 — an unverified report by a vehicle owner.