2009 GMC Acadia: stuck in gear or won't shift

Filed May 31, 2022 · Airbags, Electrical · NY

The wire harness corroded , and it caused everything in my car to stop working my back passenger window won’t go down , my back driver side cannot be put up or down from the back , my airbag light is now on and now my car will not shift while driving to allow me to drive it over 30mph .. I’ve paid the dealer almost $1400 to fix wiring. I’ve owned the car exactly a year now

Filed Oct 8, 2018 · Driver assistance, Transmission · 90,000 miles · ND

The vehicle was stationary, will start but it doesn't recognize that it has or cords aren't connecting and it won't shift into any gear-just makes a clicking sound-shift lever. Lift gate/back hatch won't stay up and keeps falling down. Power/electrical issues involving the transmission was driving, at a red light and the vehicle just stopped working and I couldn't even get it started again. There has been ongoing issues with this vehicle.

Filed Oct 8, 2017 · Engine · 111,000 miles · KY

The car began misfiring shortly after I purchased it. Had it repaired. Spark plugs and fuel injector caps replaced. It's been less than 6 months and again the check engine light is on and the car will not shift gears or accelerate. Extremely dangerous to n the expressway. I drive my children in this car! Car threatens to die when attempting to accelerate.

Filed Jul 25, 2014 · Transmission · 67,000 miles · AL

While turning left from a stop sign, my 2009 gmc slt had an RPM increase and failed to change into a higher gear. I was almost struck by an oncoming vehicle because my vehicle failed to accelerate. I parked at the post office and when I returned to my vehicle and tried to back out of the parking space my vehicle would not go into reverse. I had to get the vehicle towed to carmax and have it repaired. It is still at carmax and has to have the entire transmission rebuilt. Luckily I have an extended maintenance plan so I only have to pay a deductible instead of the entire amount. I feel that based on the number of same complaints and safety issues that gmc should have to issue a recall to have all the transmissions replaced versus the individual vehicle owners having to pay. If researched it is evident that this is an engineering flaw which started with this transmission in 2007.

Filed Apr 10, 2014 · Transmission · 117,439 miles · MA

Broke down, car felt like it would not shift into second gear then just died. Dealer found a cracked wave plate, cracked clutch housing (clutches worn), cylinder excessively worn, torque converter full of metal. No sign of any computer alerts or check engine signals until break-down. Repaired all for $2820.15. Said it would have been covered if under 100,000 miles. Sounds like planned obsolescence, or just poor manufacturing. No more american cars for me.

Filed Dec 5, 2013 · Engine, Transmission · 80,000 miles · MD

Initially noticed when shifting from park to another gear shifting was hard. About a week later noticed hesitation in shifting gears while driving at various rates of speed then the engine would rev once it shifted into gear. Eventually parked the car in drive then went to back out to take to dealership and it would not go into reverse. Vehicle towed to dealership where they replaced the wave plate and other parts that were contaminated. Since this incident the vehicle has not drove smoothly or shifted gears smoothly. It also gets less than 15 miles to the gallon during my daily commute now where prior to the transmission fix I would get 19-20. Vehicle hesitates and revs continually while driving and accelerating. When I returned the vehicle to the dealership stating there was still an issue I received "we could not replicate the issue" and sent on my way. After research on this site and other and reading the systemic issues others have had just like it I am concerned for my family and those around me safety if the transmission decides to stop while traveling high speed in traffic or when crossing traffic.

Filed Sep 30, 2013 · Acceleration, Engine · 19,682 miles · CA

When accelerating, my car seems to 'slip' or 'stutter' before clicking into gear. This happened in the first year of ownership. The dealership never acknowledged it when I would bring it in to get checked. After a few years of owning it I now know that it is a transmission issue very common with the gmc acadia. I have read that it is a faulty wave plate. Not sure what that is but now with only 50,000 on my car it is really bad. It barely made it home last night. Transmission is totally slipping and even when just driving along at the same speed it went into limp mode. The gas revved like I was in neutral. This is extremely dangerous as I had a carload of girls on a trip to the mountains. What is it going to take until this causes an accident and casualties! Gmc needs to step up and get this part recalled. It is a faulty part and they need to pay for the replacement!!!