2014 GMC Acadia power train problems

“Im assuming a torque converter shudder is happening and RPMs bounce. Its pretty random. Happens before shifts after shifts and while cruising at a steady speed. Drain and fill did not fix it.”

“The contact owns a 2014 GMC Acadia. The contact stated that while in park(P), the vehicle rolled, requiring the driver to turn off and restart the vehicle, and the vehicle successfully shifted in park(P). Additionally, the contact stated that while driving at various speeds, the vehicle jerked. The contact stated that while driving 60-65 MPH, the vehicle shut off, and the steering wheel and the wheels locked up. The contact was barely able to pull over to the side of the road, where the contact waited before restarting the vehicle. The contact stated that the Check Engine warning light was recently illuminated. The vehicle was towed to two independent mechanics, where several diagnostic trouble codes associated with the transmission and the transmission module and solenoid were retrieved. The contact was then referred to a transmission specialist, where the vehicle was towed and was being diagnosed. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 160,000.”

“My 2014 GMC Acadia constantly displays “Service Stabilitrak,” “Service Traction Control,” ABS, brake, and check-engine warning lights. The vehicle will not accelerate past 40 mph under normal driving. Recently, the vehicle began showing “Engine Power Reduced” randomly without any warning, and the vehicle loses power suddenly. The OBD2 code P1682 (Ignition 1 Circuit/Relay failure) appears every time. This issue has caused the vehicle to jerk, lose acceleration, and even stall in the middle of an intersection during rush-hour traffic while my children were in the car, creating a serious safety hazard. These warnings and symptoms are constant, and the power-reduction events occur unpredictably. No official inspection has been completed by the manufacturer. The failed component is still in the vehicle and available for inspection. The malfunction affects traction control, stability control, braking systems, and engine power, putting occupants and other drivers at risk.”

“2014 GMC Acadia Denali When accelerating the car is sputtering and slipping. The RPMs are increased. There is a delay in shifting and it is rough. The car jerks and has a pause when accelerating. This is an expensive repair. Is GMC going to help or make it a recall? My local mechanic suggests it gets repaired as soon as possible or sell it - am not comfortable selling it with a bad issue. Unsafe. GMC needs to correct this. GMC - do your part and make this right for your customers. I read many complaints regarding this issue. How many complaints does it take before GMC will make a recall on this issue? I also have a recall on the airbag. I have been having an issue with the light on for 2 years and called many times on it. Last year they said there was no active recall. I see now that there is one. I called and was told that I should have received a letter. I never received a letter of the official recall and the repair is covered. I am now waiting 4-8 weeks for the dealer to get the part in and for them to then call me to schedule an appointment. Why do they not have them in stock? I have been scared every time I drive my 2014 GMC Acadia knowing at any point…”

“Transmission failure - needed to replace the transmission Experienced rough shifting, slipping, or hesitation and then transmission failed while driving almost causing a multicar accident. This is a widely known issue for my vehicle year. GMC would not assist with any coverage of the repairs. This issue needs to be a recall.”

“The contact owns a 2014 GMC Acadia. The contact stated that the AWD warning light was illuminated. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure with the air bags. The failure mileage for the AWD failure was approximately 175,000. Parts distribution disconnect.”