2014 GMC Acadia: harsh or hard shifting

Filed Feb 28, 2025 · Transmission · PA

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.

Filed Sep 17, 2024 · Transmission · 159,000 miles · IA

The contact owns a 2014 GMC Acadia. The contact stated while driving 75 MPH, several unknown warning lights illuminated. Additionally, the vehicle made an abnormal clunking sound and failed to exceed 40 MPH. The vehicle was towed to an independent mechanic an independent mechanic, where it was diagnosed and determined that the transmission had failed and needed to be replaced. The vehicle was towed to dealer, where the same assessment was made. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 159,000.

Filed Oct 24, 2019 · Transmission · 90,000 miles · CT

Car was banging into second gear periodically since the day we got it as a cpo about two years ago. The dealer said it was normal. Fast forward to last week when all of a sudden the car was bucking and slamming into gears and stalling out at lights. We brought it to the dealer and they said that the car needed a transmission and it was out of warranty. Gm corporate did nothing to help with the cost and now I'm on the hook for a $6,000 bill. Plus I have to find a rental car to wait for the back ordered transmission to arrive because of the strike. Never again gm

Filed Jan 29, 2016 · Driver assistance, Steering · 41,000 miles · GA

Twice in the past week I have had the same problem with the stability track sensor turning off while driving. When this happened the engine power decreased. When trying to get the vehicle off the road, it was like I had lost power steering because it was a fight to turn the wheel. Prior to this we have also noticed that when the vehicle shifts gears, quite often it is a very hard shift to the point it shakes the whole car and feels like it is stalling. Not sure if that is a transmission issue or something to do with the fuel injection.

Filed Aug 1, 2014 · Electrical, Engine · NY

Since the day I drove my acadia off the lot there has been a "click" that occurs which sounds like it is coming from the engine that can be felt under the gas pedal when the vehicle is about to shift into 2nd gear, but only immediately after starting the vehicle and never again when switching between 1st and 2nd gear until it has been turned off and restarted. The noise it makes sounds like a marble rolling on a wooden floor for about 1-2 seconds and then click and then the gear shifts. The dealer said they didn't hear anything but I do as well as other passengers do every day. Additionally, when turning the vehicle at a slow rate of speed and then accelerating, the engine slams into gear when between 10-15 MPH but only after a turn and an attempt at acceleration. Also, my acadia is not a vehicle under the "faulty gas gauge" recall however once my vehicle is below 1/4 tank the needle on the gas gauge will jump from 1/8 tank to 1/16, back up to 1/8 of a tank all while driving on flat roadways. Concurrently, the range for the fuel on the digital screen goes from 95 to 58 to 72 all while driving with cruise control on at a consistent speed. Lastly, the vehicle has the denali grill which leaves minimal airflow from the engine compartment. Up to three hours after turning the vehicle off (in a cool garage) you can still feel the heat coming from the engine compartment if you place your hand in front of the grill. Could this be a possible fire hazard? All of these issues began when I purchased the vehicle with 60 miles on it and continue now at 15,500 miles. I drive frequently and can tell you that I do not feel safe in my vehicle but am unsure what to do as the dealer has told me there is nothing wrong with it. The only recall for my vehicle is the seatbelt issue but I think there are serious engine problems with this vehicle that need to be addressed by gm.

Filed Jul 27, 2014 · Brakes, Transmission · 500 miles · TX

When accelerating between 10 and 20 miles per hour, something underneath the body of the car, moves in a circular motion and clunks underneath the gas pedal. This movement can be felt under the gas pedal and floor as well as heard. This occurs 80-90 percent of the time after starting the vehicle. The vehicle also shifts hard into gear at about this MPH. The dealership has tested several acadias and found a gm bulletin on this event. The gm bulletin indicates this is a "normal" cycling of the ABS brake system that occurs on the acadia and chevy traverse models. So far gm has been unwilling to resolve this issue, yet because it is a brake issue and is felt under the gas pedal, the safety of this vehicle is highly concerning to me. I drive a variety of vehicles for work and do not experience this rotation and clunk with any other vehicle. I am concerned about my safety.