The contact owns a 2007 GMC Acadia. The contact stated while driving approximately 40 mph, the vehicle suddenly stalled and the transmission light illuminated. The vehicle was towed to a dealer who could not diagnose the cause of the failure. The vehicle was not repaired. The failure mileage was 62,000. The VIN was not available.

- Severna Park, MD, USA

Transmission stuck in low gear causing dangerous driving condition.

- Cumming, GA, USA

Wave plate broke and transmission being rebuilt.

- Boalsburg, PA, USA

Every since I purchased my 2007 GMC Acadia, I have had problems with steering especially when it rains and water gets underneath the truck. I have lost control of the truck several times. Then there was a recall on it for that reason. They put some kind of protection behind both of the front wheels, but I continue to have problems with power steering and losing control of the truck. It gets very difficult to turn the wheel; it stiffens up and you cannot control the truck. This happens even after I have put power steering fluid in the vehicle. It will ease up a bit, then continues to be difficult to turn and even makes a sound while attempting to turn the wheel. Another problem is that something keeps making the temperature handle go all the way on hot and a terrible fume smell is released and its like the truck is over-heating. Another issue is the electric: Power windows work sometimes, radio works sometimes, dvd player works sometimes, etc. This becomes annoying to know that you have a "sometime" vehicle. I want a reliable and safe vehicle to ride my family in. I also notice that sometimes there is a problem with the ignition switch. It sometimes delays prior to starting.

- Carrsville, VA, USA

2007 GMC Acadia with 108,000 miles. Check engine light appeared and the transmission went into safe mode and would not shift out of 2nd gear. Code generated was the "shift solenoid stuck open". transmission shop stated that the transmission will totally fail soon and needed to be rebuild at a cost of $4500. The transmission guy said that I was lucky to get over 100,000 miles because they usually fail between 80-90,000 miles. He stated it was a horrible design for a transmission and inadequate parts were used inside. Not an uncommon problem for this vehicle. Researching all of the complaints, there should be a recall. GM's attitude is that the warranty is up and it's your problem, so you must pay for our design flaws.

- Carencro, LA, USA

Was driving car and transmission started acting up. Car would shake when shifting gears. Service engine light came on. Took to service garage and said would need to rebuild transmission.

- Bluffton, OH, USA

I was coming home with my five children when getting close to home my truck just would not go over 10 mph I would pull over for cars behind me to pass after I tried turning it off and restarting but it would do the same glad I was close to home that I was able to get their. I got home shut the truck off and tried to turn back on and it wouldn't I have been told that it was a sensor and replaced it and it still didn't work know I have been told that it is the motor that is bad it is embarrassing to have a truck in your driveway that you have not been able to use and still owe have the amount of what it was sold to us. They also told me that this was common on 2007 because of the faulty motor that was put into them as I read some of the reviews it should be considered as a recall because of the price these trucks go for new or used suppose ably it is a high quality vehicle and its sad that their is so many bad reviews and nothing has been done to help all the people who are having this issue as GM knows this isn't something you can say I will get it fixed right away you are talking thousands of dollars for repairs.

- Whitewater, WI, USA

I was driving to the store, going down hill on the right side of the road. Mid-way down a message appeared on the computer saying "engine failure, power off" and the car just shut down with out warning. No matter how hard I pressed on the gas the car was shut off. The steering went out as well and I had to stand in the seat to use all my power to turn the wheel. Previous to this, the check engine light had not been on, no advance warning of this. I had both of my children in the car at the time. Luckily there was a bp gas station with garage at the bottom of the hill, I was able to coast the car into the gas station where they ran diagnostic testing and repaired my car and reset the sensors. Nine months later I was driving with both of my children again, in North East Washington DC when out of no where the same message appeared. I was able to pull the car over to the side of the road and restart the engine one time. I turned around to go home and on the drive home the same thing happened on a less of an incline of a hill. The car shut down completely towards the top of the hill going down. Same as before, no gas and no steering ability. I was too scared to leave the car on the side as cars coming over the hill would not have time to stop before hitting us. I put the car in neutral and tried to glide down the hill to the shell station. The car cut out completely and lost all momentum so I had to push the car into the gas station and wait 3 hours for the tow truck to arrive. It went back to the bp station from February and had a new battery and several other items replaced. I bought this car new in 2007 and have had countless breakdowns and replacements- two transmissions within the first 3 years and repairs. I keep up with car maintenance regularly and do no neglect anything.

- Silver Spring , MD, USA

I have a 2007 GMC Acadia. I have had to have multiple work don on the transmission and yesterday it slipped out of gear while driving. I tried to accelerate and the engine revved and the rpms went high but the transmission would not shift. Had I been on the highway at a high speed this could have been the cause of a serious accident. I took it to my dealer and they said the transmission control module had went bad and it cost me $1400...at 83,00 miles"??" I think GMC should take responsibility for the terrible workmanship of their transmissions in the 2007 Acadia.

- Carrollton, GA, USA

Transmission failure. 2007 was the first year of the GMC Acadia. At 94,000 miles I don't think the transmission should fail. When I purchased the car it came with a 5 year 100,000 mile power train warranty. I have owned the car for 7 years. I know GMC has made improvements to later models. I feel this is a huge injustice. I have been quoted $4500 to replace the transmission by the dealer. I have been told by a reputable aamco shop that the only place this can be fixed is at the dealer because they have the codes to make the transmission and engine work together.

- Las Vegas, NV, USA

On my way home from work, in the middle of tunnel truck turn on check engine light, in panel " reduced engine power" and reduced the velocity by itself to 10mph. I turn it off and on again, started running but in less than 1 minute running, did the same problem.

- Virginia Beach, VA, USA

Was passing a slower moving vehicle when transmission started slipping severely. Pulled into parking lot and then vehicle wouldn't move at first. A couple of the gears seemed to slip in drive and reverse had a shutter. Took it to a GM dealer and they said its a wave plate in the transmission that is messed up.

- Robinson, IL, USA

Transmission failure...first noticed car hesitated accelerating while attempting to pass or getting on interstate and rpms would jump up to 4-5K then hesitation in accelerating before jumping into fear...then later increased rpms at30mph and would not accelerate. This happened many times but would go days/weeks in between incidents. After taking to shop and researching this is a very common problem with this model...wave plate failure in tcm ( poor quality part) this is so dangerous....after first incident I became more aware of how the car would behave and was better prepared when it decided to jump into a higher gear or hesitate. Car is being repaired now and thankfully my family stayed safe. Too many owners with same problem for this safety issue to be ignored. Please help.

- Lawley, AL, USA

Pushing the gas pedal the vehicle revved up and the gears slammed into gear, engine light came on and seems to have no first gear as of now. Seems it may be the wave plate within the transmission.

- Windham, ME, USA

Going down highway vehicle acted like it slipped out of gear..about got run over by transfer truck before I could get it to side of road...took to shop said transmission needed replaced..apparently like 100S of them do on the Acadia.

- Ellenboro, NC, USA

Transmission has full failure, dealers said that wave plate went out destroying entire transmission. $4300 repair at GMC dealership.

- Rockwall, TX, USA

When beginning to drive our vehicle from church the check engine light came on and vehicle would not downshift, and speed would not get above 30 mph. When brought to the dealership the following day, we were told we would need a new transmission. The vehicle only has 50K and should not have had this issue, and it is a transmission safety issue. Had we been on a busy highway and this incident occurred, a major accident could have taken place. Other sites have listed numerous complaints about the same transmission problem occurring in various Acadia's as well. A recall should have been issued and GM should pay for the full repair as it is over $4,000.

- North Syracuse, NY, USA

Bought with 58K miles on it, 9/2012. Problems began the following April. Sitting at red lights, the truck would stall out at acceleration, occasionally not restarting immediately. Dealers couldn't replicate problem. Problem briefly stopped, and now it has returned and is far worse. While driving, it shakes and jerks like a new driver learning to use a manual transmission. Several times the truck has shut off completely on highways while cruising at or around 70mph or accelerating to pass someone, nearly causing accidents. This truck has been towed home 3 times this month from this issue, I refused to take it to a GMC dealer because I can't keep paying $109 for diagnosis and they say they don't find anything (twice already). I recently had the vehicle scanned independently and it's given me codes 7ea and 7E8. The second code doesn't give a diagnosis. In the last week it has failed to start 4 times and I've been keeping video blogs to record what it is or isn't doing. It is currently sitting in my drive way, not operable. GM customer service says there isn't enough evidence to support a recall, but everyone is having the same problems. Twice it stranded my wife and children on interstates. On 10/30/13 (on our anniversary, out of town none the less) it shut off and we had to get pushed to the shoulder...very embarrassing! something must be done! everybody can't be telling the same lie! also, the "service airbags" notice just started showing.

- Detroit, MI, USA

My wife and I were on hwy 78 in loganville ga when the vehicle wouldn't shift causing us to veer off the road. Luckily no one was in the other lane. When I got to my dealership I asked the service writer if this was a common problem in the Acadia and he said very candidly yes. He further said as the mileage gets higher on these models he expects numerous breakdowns. My wife is disabled and this is her car. What if I hadn't been driving. It's going to take someone getting killed before GM admits these transmissions have defective parts. It's not a matter of if they will break but when.

- Monroe, GA, USA

When pulling out from a stop, the vehicle shifts very hard from 1st to 2nd gear. Sometimes there is a loud crunching sound and occasionally it will shudder while driving. The vehicle hesitates all the time when trying to accelerate, and will not downshift when going up hills. Erratically changes gears even while traveling at the same rate of speed, like it is not sure what gear to be in. The check-engine light will come on and it will not change out of 1st gear, and it will stay this way until the vehicle it turned off and left alone for a few minutes. Then the light will go away after it is driven about 50 miles. I have had the shift solenoid replaced ($450 expense) which is that the code said was wrong, and this did not fix the problem or help anything.

- Bristol, TN, USA