2017 GMC Acadia

Cannot shift out of park. AC stops blowing also. Electric seats stopped working. Replaced BCM modular, solenoid , entire shifter and more. It worked for two months. -Happening again. Cannot shift out of park and the AC stops working. Seat are working at moment. It’s all intermittent. Currently dealer will not help me. No warranty anymore. Im on a site where thousands of gmc’s have this same problem. Im gonna have to bring back to another dealer but no one can figure it out how to fix this. I sent my last bill. I also had one before that with the shifter assembly and solenoid replaced. I cannot find at moment

The contact owns a 2017 GMC Acadia. The contact stated that while driving approximately 10-15 MPH, the vehicle made an abnormally loud blower motor sound while accelerating, before the vehicle lost motive power. The transmission was shifted to neutral(N) and pushed to the side of the roadway. The TPMS warning light was illuminated. The vehicle was towed to an independent mechanic who determined that the transmission clutch had failed, and the transmission needed to be rebuilt or replaced. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed there was no recall coverage or warranty coverage on the VIN for the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 132,000.

Shifting car into park and the car does not register that it is in park. Display reads "shift to park" and lights do not shut off. Car will sit for 15 or more minutes before the car registers it is actually in park. I try to start it, shut it off, of start it, put in gear and then switch back to park and shut it off but still reads "shift to park". Battery is going to die if this keeps happening. GMC should be responsible for doing a complete recall on this, especially since they are aware of the problem. I have been stranded in parking lots waiting for this car to correct itself. this has been going on for over 4 years.

The vehicle would not recognize the truck was shifted to park. The gear shift was replaced in 2024 and the same problem occurred 9 months later. The first GMC repair location did not connect the shifter cable correctly, causing the problem to persist. I had to pay twice to resolve an issue seen in many of the 2017 GMC Acadia models. This problem should be considered a recall, and charges for repair should be covered by GMC.

The contact owns a 2017 GMC Acadia. The contact stated while driving at an undisclosed speed, the power steering assist warning light illuminated. The contact stated that the warning light then turned off independently. In addition, the contact stated that the air conditioning failed to function as intended and the interior of the vehicle became extremely hot. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact stated the vehicle was taken to the dealer in 2024 for the failure, and the contact was informed that the power steering assist feature had failed, and the software needed to be updated. The vehicle was repaired; however, the failure reoccurred. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The contact was advised to take the vehicle to the dealer for a diagnostic test, and a case number would then be provided. The failure mileage was unknown.

The contact owns a 2017 GMC Acadia. The contact stated that while attempting to shift into park, the message "Shift to Park" was displayed. There was no warning light illuminated. Due to the failure, the contact was unable to turn off the vehicle. The local dealer was contacted; however, the vehicle was not diagnosed. The contact was informed that the VIN was not under recall. The vehicle was not repaired. The contact referenced Technical Service Bulletin: PIT5616; as a possible cause for the failure. The manufacturer was notified of the failure. The approximate failure mileage was 110,000.

I’m just reporting several known issues. First, with code P2138, which I got today at Oreilly after my car started throwing warnings. I used my parking brake briefly and afterwards got the following warnings on my car: “Steering Assist is Reduced, Drive with care”, “Engine power reduced” , “Propulsion Power is reduced” , “Service Parking Brake”. I’ve never even had one of these warnings. I’ve only gotten “shift to park” which is another known & common issue. With this P2138 code, it can affect acceleration and essentially loss of control over it, but seems I suddenly have several issues. Recently the infotainment system is possessed, touch screen stops working, it calls people by itself, beeps and scrolls by itself and is essentially useless. Might as well be driving at 1997 something or other, at least I could play a tape or CD. This is Denali trim at 87K miles. Primarily though I’m concerned with this code, if it’s legit, it is very dangerous. How unreliable and unsafe to not know.