2018 GMC Acadia

For the past two weeks, when the Acadia is put into park and the engine is turned off, the warning bell chimes nonstop and a dashboard message appears to put the vehicle into park even though it is already in park. The vehicle needs to be restarted and then put into drive or reverse and then back into park. With irregularity it may or may not work. Sometimes the car must be turned on and off 5 or 6 times before it recognizes that the transmission is truly in park.

The contact owns a 2018 GMC Acadia. The contact stated while the vehicle was parked, the "Shift to Park" message was displayed on the instrument panel. No warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed and determined that the transmission control harness needed to be replaced. The contact researched and was made aware of an unknown recall; however, the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 42,187.

All of this has been going on for a while but it's gotten to the point of dangerous. The Shift to Park keeps coming on preventing me from shutting the vehicle off even though it's, in fact, in Park. Then, "Steering Assist Reduced Drive With Care" keeps coming on. This will come on and off. Preventing the engine from heating up like it needs to be. Then the transmission keeps slipping. Was nearly rear-ended on the highway with my child in the car when it decided to start driving really rough and wouldn't allow me to shift to the next gear. This is also an ongoing issue. Another time I was almost hit in the side when this randomly happened on crossing the highway. This is absolutely absurd! I have had MUCH older vehicles without all these issues with many many more miles! I can't count the amount of times this has caused us serious hazards not to mention almost costing me my JOB! Interestingly enough, the same year/make/model has been recalled for the exact same issues yet for whatever reason GMC says MY model "was not affected by the recall". Funny how it's having the EXACT same issues as the ones on the recall list! GMC needs to fix this before they cause people to die! I'm a healthcare worker and this is disgusting!

The contact owns a 2018 GMC Acadia. The contact stated that upon arriving to his destination, the message "Please Shift to Park" was displayed. There was no warning light illuminated. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to Technical Service Bulletin: 19-NA-206. The manufacturer was not notified of the failure. The failure mileage was 60,000.

The contact owns a 2018 GMC Acadia. The contact stated that after parking the vehicle and shifting to park, the vehicle failed to turn off. During the failure the message "Shift to Park" was displayed even though the gear shifter was in park(P). After several attempts, the vehicle was able to be turned off. The contact also stated that during the failure, the vehicle would roll backwards. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The failure mileage was 70,000.

While I was driving the vehicle started jerking and not changing gears. Several times it almost caused an accident with me and my son in the car. I turned the car on/off and restarted it at the red light, the exact same thing happens. Lucky a GMC dealer ship was near by. I was able to get there still jerking and not changing gears. No warning signs appear during this whole time. No prior issues with the transmission. Once I made it to the dealship then engine like came on. Really now! The dealer checked vehicle and stated the transmission is gone out. I was flabbergasted, almost $10,000 had to be replaced.

The contact owns a 2018 GMC Acadia. The contact stated that while shifting the gear shifter into park(P), the "Shift to Park” message was displayed on the instrument panel. The contact was forced to shift from drive(D) to Park(P) repeatedly before the failure was corrected. In addition, the contact stated that while driving at various speeds, the steering wheel would become sticky with the "Steering Assist Reduced - Drive with Care," message displayed on the instrument panel. The contact stated while driving at various speeds, the infotainment system glitched and performed independent functions, causing the driver to be distracted. The contact stated that the infotainment system was replaced when the vehicle was purchased due to the failure; however, the failure recently recurred. The manufacturer was made aware of several failures and informed the contact that there were no recalls on the VIN. The vehicle was not repaired. The failure mileage was approximately 105,000.

The contact owns a 2018 GMC Acadia. The contact stated that upon arriving at her destination, the contact shifted into reverse to park the vehicle; however, after parking and shifting to drive(D), the vehicle failed to respond. The contact became aware after several attempts that the transmission was stuck in park(P). The blank warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the inline shifter wiring harness. The vehicle was not repaired. After investigating the failure, the contact related the failure to Technical Service Bulletin: 19-NA-206. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 111,000.

The contact owns a 2018 GMC Acadia. The contact stated that while the vehicle was parked, the gear shifter was shifted into park; however, the gear shifter failed to function as intended. The contact stated that the “Shift to Park” message was displayed. The vehicle was taken to the dealer where it was diagnosed with a failed shift to park gear. The contact stated the dealer had not provided a cause for the repair. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 48,000.