1-heated washer removed, catalyst converter replaced, timing chain issue, fuel pump, head lights all replace due to defect and now @ 89,500 I have a major transmission issue a PO752 code has been noted and the car is 5.5 years old and believe this is a defect GMC is aware of and failed to fix, even sugggested by amaaco the tcm may even need replacing. Feel like this car has been one defect after another which led to other defects happening and premature wear and tear on other parts.

- Burlington, NC, USA

Transmission failure due to faulty factory issued wave plate. This should have been a recall as GM appears to be very aware of this problem in most early year model Acadias. The price tag alone is $4,000+... not to mention a rental car and making payments on an undrivable vehicle while it sits for who knows how long since the transmission is on national back order because its such a common problem.

- Graham, WA, USA

No speed entering the freeway and then reverse shot the car forward into a front yard and almost into a house. I entered the freeway after picking my 4 year old up from pre-school with my 1 year old also in the car. The car would not gain speed and rpms spiking. Nearly got in an accident merging onto the freeway, exited first offramp, pulled into neighborhood and turned into driveway to do a three point turn to park on the side of street. Put the car in reverse lightly tapped the pedal, and instead it sped forward as though the gas pedal was pinned to the floor. We went deep into the front yard of house stopping just short of the house. Aaa came and towed the car to the closest GM dealer. Aaa driver tested reverse and it would only go forward. He said he had never seen anything like it. So grateful this didn't happen minutes before in the preschool parking lot which is a U shape where the parents line up and the teachers bring the kids out. The experience was terrifying. We parked next to an Acadia yesterday and my 4 year old said "mommy we should tell them they have a bad car." Called GM immediately and every day since (2 weeks) - no response, I am just shuffled between representatives. My car is still sitting in the dealer's lot. My car also had a purge value problem causing it not to start after getting gas, and a power steering problem. It is one thing for the transmission to fail at 64,000 miles and another for it to almost drive you through someone's house. GM does not seem to care.

- Los Angeles, CA, USA

We bought this car used. Had it for less than a year and only put 8,000 miles on it. On a return business trip the transmission went out while going down the interstate. Had to call for a tow and have had the worst experiences with the dealerships working on it. I'm absolutely over this GMC and the junky car they created in the Acadia.

- Bloomington, IN, USA

On this particular day I was merging on to the freeway (which speeds of other traffic was upwards of 65 mph). I attempted to accelerate and in doing so was unable to switch gears. The vehicle "bogged down" and nearly caused an accident as I wasn't gaining speed. This issue repeatedly happened on my way home, traveling a distance of 60 miles. This malfunction according to some discussions on edmunds is well known by GM! it needs to be more than fixed, the transmissions need replacement. A bandaid isn't going to work in this case.

- Hayward, WI, USA

Car will not accelerate, engine just revs and rpms increase to 5000+ when attampting to change from third to fourth gear. Thankfully, I was on a road less traveled and did not get smashed in the back with my son in the back seat on the highway. What a safety hazard!

- Colonial Heights, VA, USA

Would not go into reverse, would not exceed 20 mph in drive, RPM's spiked to 4000, check engine light comes on, erratic driving because of the condition, web search reveals numerous incidents of same type involving breaking wave plate failure.

- Salisbury, NC, USA

The transmission on our '07 Acadia went out after only 67,000 miles. We had to pay over $3,000 out of our own pockets to get it repaired because it was over the five year warranty period even though it was still well under the mileage limit. When you pay over $30,000 for a vehicle you expect it to last longer than ours did without having to pay thousands more to keep it operational. A few months after getting the drive train repaired we are experiencing camshaft/crankshaft issues. The vehicle is functioning at about 60% of its original power. We can only assume that this will entail another costly repair.

- Indianapolis, IN, USA

Engine light on vehicle, the vehicle will not shift into gear - happened three times had to pull off side of road to not get hit from other vehicles and 5 year old was also in car with me. Had to shut off the car multiple times to get started again and for it to finally shift into gears. Took car to dealer and they replaced transmission control module valve. On 4/1/13 car would not go into reverse on incline. Had to drive forward and reverse on flat area, dealer now says they found broken wave plate and burned 3-5 reverse clutch. Also found internal defect park of valve body. Car is only 5 years old and has only 55 thousand miles on it. Saw other issues on this database all with broken wave plates on 07 Acadias. Paid thousands of dollars to get this fixed.

- Pittsburgh, PA, USA

The contact owns a 2007 GMC Acadia. The contact stated that the vehicle would not accelerate over 40 mph. In addition, the gear shifter could not be moved into reverse. The check engine warning light was also illuminated. The vehicle was taken to dealer for inspection and the contact was advised that the transmission needed to be replaced. The transmission was replaced. The manufacturer was not made aware of failure. The failure and current mileage was 87,400.

- Covington, LA, USA

After spending $370.51 at my local GMC dealer for stabilitrak errors resulting in low fuel input into the engine, with a maximum speed allowable at 35 mph, my 2007 GMC Acadia is once again experiencing stabilitrak errors. They generally occur when I roll to a stop at a stopsign or stoplight, but I am very concerned that the transmission will reduce speed when I travel the interstate. My local GMC dealer claimed this problem was caused by a "cam exhaust position sensor fault" and replaced the "cam exhaust position sensor" on 3-20-13 for $370.51. For one week this repair worked and there were no stabilitrak errors. Ten days later, my 2007 GMC Acadia fwd is worse than ever, endangering me at night by shifting suddenly into "stabilitrak error, low fuel input" mode. I am terrified that my GMC dealer will charge me more money to pretend-fix this problem, as they have me coming in for $400-$1,100 repairs every other month now since they want to sell me a new car.

- Lakeland, FL, USA

No previous symptoms. Could not get the vehicle to go in reverse. Got towed to the dealer. Diagnosis - wave plate fracture. Found many many 2007 GMC Acadia's had this problem, there should have been a recall. This happened 1 year after the warranty expired, but only 74419 miles, and never driven in extreme conditions and never towed.

- Methuen, MA, USA

No recall for defective transmissions? bought 2007 acadiar used, 2600 miles /felt transmission problems early on. Very noticeable jerk at 40mph. In and out of dealership since. Last few months car has been in to dealer frequently re car bucking at stop lights really rough thought engine going to die. Every time nothing showed in codes, emergency trip to doctor/heavy traffic main artery/can't get over 20mph/engine screaming/ make it to dr. (omg) towed to dealership. Transmission gone. I could have had a serious accident. Finally heard something about a wave plate. For 5 yrs I've said something wrong. No one said these were constant problems with Acadias. They issued recalls for a leak in the sun roof. No recall for defective transmissions" known defective wave plates" I have extended warranty, but many don't. warranty or not, this safety hazard should be fixed by GMC at their expense. A recall is mandated. Just ask the owners...

- Clearwater, FL, USA

I was driving my car when all of a sudden it wouldn't accelerate above (20mph?). I was forced to park it at an apartment complex and get it towed to the dealer. Now less than 6 months after paying out of pocket for that repair, I am having the same problem.

- Denham Springs, LA, USA

Started shifting weird, then RPM's would spike as car was shifting. Car then would not go into any gear and left stranded on side of road. Had to have vehicle towed to dealership where it was found to have a broken wave plate, damaging numerous gears and torque converter. Pressure control module which is part of the valve body was bad. Had to replace entire transmission, all seals, gaskets. Also found out when replacing that the thermostat housing was leaking coolant, so had to have that replaced at same time. This at a cost to us of over $3500. Have read online that this is a very common issue with this vehicle. We were 7 months out of our 5 year/100,000 mile warranty and GM would not help in the least.

- Kalona, IA, USA

I have owned this car for about a year and since I have owned it have had nothing but problems. First the struts were blown, the dash lights would go from bright to dim, the steering wheel made a clicking noise, the windows leak...this car only has 41,000 miles I mean come on! now the transmission has completely failed and after reading other websites it sounds like I will be paying $4,000 dollars. I am a new mom and have 3 step kids. I can't feel safe in my car because I'm worried about it breaking down constantly. Now I have to dump all this money that I don't have into it. I really just want to cut my losses, but is that really the best thing to do? I'm stuck with this junker car and I couldn't feel more sorry for all these other people having the same issues. I'm absolutely miserable. Thanks GMC you suck.

- Juneau, AK, USA

Vehicle has about 50,000 miles but a few months out of warranty and started giving me problem shifting gear. Researched the problem and found a lot of similar complaints out there but GM is refusing to take responsibility and making owners pay to fix the problem. Transmission is defective.

- Elk Grove, CA, USA

2007 GMC Acadia. Consumer writes in regards to problems with the vehicle headlights and the transmission. The consumer stated on December 17, 2011, the left headlight burned up for no apparent reason. The local dealer quoted him $1,213.59. He was able to get the headlight fixed for$ $695.67. On December 2, 2012 the transmission failed. The consumer had a rebuilt transmission installed at a cost of $ $3,737.25.

- Rockford, IL, USA

Prior to having the transmission break down the vehicle had been shifting hard from 2nd gear to 3rd gear. Starting up a small grade from a stand still the transmission suddenly began slipping at about 20mph. The vehicle would not shift and the engine light came on. I was only about 1 mile from home so I drove it home at about 25mph. At home I put it in reverse and it would not go into reverse. Took it to a transmission shop the next day, they called me back later that day and told me it needed a new transmission. They are doing the job for $3200.

- Indio, CA, USA

3 months past the 5 year 100K warranty with only 55000 miles on the car and both the water pump and transmission went out. GM paid for half of the costs still $1253.05 out of pocket when it should all have been covered. This is a consistent problem with the Acadia and GM knows it but refuses to step up. The day the transmission went out we almost got thrown through the windshield definitely a safety issue.

- Lincoln, NE, USA