2007 GMC Acadia: sudden loss of power

Filed Mar 5, 2019 · 172,000 miles · OH

Tamaka recall, my 2007 gmc acadia, lost power driving down the road. I was doing about 55 MPH and lost all acceleration and my car would not move above 20 MPH.. Thankfully I wasn't hurt but was scary bc other people were behind me and my car slowed down so fast! After further review this seems to be a huge issue with this vehicle, and to me seems like a huge safety hazard. I still have to have my car looked at but now the engine light is no longer on. I feel that this vehicle is very unsafe to drive when you could be driving down the freeway and lose power... Then when taken to the shop the car seems to be in good working order only until it does it again. This would be one thing if this was a one person case but this is a many person case! Thank you

Filed Dec 26, 2018 · Acceleration, Driver assistance · 143,000 miles · TN

While driving 45mph on a straightaway highway , three warnings came on "reduced engine power" "service stabilitrak" and "traction control off" then the vehicle lost power cars behind me and nowhere to pull off the car had lost power it would not get over fifteen MPH. Taking it into be serviced .I have already had the transmission replaced

Filed Aug 28, 2018 · Driver assistance, Suspension · 130 miles · CT

Driving on highway and loss all powers to transmission at 65mph. Car would not move.

Filed Jan 9, 2018 · Driver assistance, Engine · 170,000 miles · WI

While driving at 55 MPH three warnings came on "reduced engine power" "service stabilitrak" and "traction control off" then, the speed began to decline and I could not go more than 35 MPH. Got the car to a safe place to stop and when I put in park a sputtering in the engine could be felt. I turned off and when I started it to bring it in for service it ran fine but check engine light was still on. A very similar incident occurred just over a year ago. Repair was to replace the throttle body. Also mention of the tps sensor on the throttle. I have not had the current issue fixed yet.

Filed Mar 17, 2015 · Steering · 92,000 miles · LA

Tl* the contact owns a 2007 gmc acadia. While driving 25 MPH and making a left or right turn, the vehicle vibrated and there was a loss of power steering. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The VIN was not available. The approximate failure mileage was 92,000.

Filed Feb 27, 2015 · Steering · 159,000 miles · PA

I experienced the issue while driving in the city about 25 MPH. I lost power steering while turning and almost hit another car. I have received a recall letter from gm and I scheduled an appointment with the dealership. They required my VIN number to check and make sure my car was covered under the recall and assured me that it was. I then took my car to the dealer and after they had it for 4 hours, I received a call stating they won't cover it because I exceeded the mileage by 10,000 miles. The dealership then attempted to make me pay a diagnostic fee. I contacted gm and they are not willing to do anything to help. I have owned my car for 2 years and they are just now notifying me about the recall. The dealership was only willing to give me a 5% discount off of $1084. I have expressed my feeling on this and explained that I just received the letter and that the car is 8 years old, why did it take them so long to contact the customers. They really expect a 8 year old car to have less then the 150,000 mile limit they set. I also expressed that this is a serious safety issue when you lose all power steering while driving.

Filed Jun 12, 2014 · Brakes, Engine · 35,015 miles · PA

Transmission slipping jerks and bumps when shifting. Passengers noted there was issues also. Loses power going up hills. Took it to cochran pontiac for two years and did not correct situation, since there were no codes on the computer even though the car had no power and was jerking. Engine light, antilock braking, no rear sensors, and the fuel gauge lights are now on after another dealer fixed transmission and I had to pay $1,500 and I should have not paid anything. I did not have these lights on my dash board when I went to get the transmission fixed and the dealer has not fixed them. Recently, my car lost power and died on a blind dangerous curve and shut down the engine. I was afraid to get hit and felt my car was unsafe. We put gas in and would not start and engine was hot. I had to have it towed to dealer after two weeks from getting the transmission repaired and told dealer transmission has noises in it and engine was hot and car would not start. They called and said it was out of gas and runs now, however, they did not address the issues noted above for all of the lights that were on the dash board. The gas was not the issue before car was towed since we put gas in there when it broke down. This 2007 acadia has had issues since 2011 that continue to present and this SUV is known to have many recalls and is unsafe. The car was taken to the dealer numerous times with complaints by the customer.

Filed May 20, 2014 · Brakes, Transmission · PR

Driving along at approx. 25mph and transmission suddenly lost power. The car was turned off and on randomly to apply power to the transmission for a couple of minutes to drive it back home. Thank god I had just left home! Never, ever received a notice from gmc nor the dealer regarding power train problems. The car has been sitting since then (now going on approx 8 mos. Because I have not been able to afford approx. $3,500 for a new transmission. The saddest part ... I don't even have a notification as to where to take it to get repaired.

Filed Jan 25, 2014 · Acceleration, Engine · 131,000 miles · VA

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.

Filed Nov 21, 2013 · Acceleration, Engine · 69,900 miles · CA

I was driving home from work around 5:05pm on the 5 north freeway going about 65 MPH. All of a sudden my check engine light went on and I felt a sudden loss of power in my acceleration. As I stepped on the gas more to keep up with the flow of traffic, the RPM needle jumped up to between 4 and 6 on my gauge, but my vehicle wasn't going any faster so I had to steer to the right to get to the exit. I was barely able to exit without almost getting rear ended but I had no choice as my vehicle would not go over 40mph. After getting it checked at the nearest shop, I was told that it was a stuck solenoid. After I got that fixed, 4 months later, same problem, but now the dealership is telling me they will have to rebuild my transmission due to a broken wave plate, which will cost me at least $2800, which I don't have.

Filed Aug 10, 2013 · Transmission · 86,284 miles · NJ

While on a vacation trip with the family, my 2007 gmc acadia started to hesitate and buck when accelerating from a stop. When I arrived at my destination and pulled into the parking lot, when the transmission completely stopped working with no forward or reverse gears. I had to have the car towed to a gmc dealer and have a broken 3/5/reverse (35r) waveplate replaced in the transmission. This sudden unannounced loss of power to the wheels, could be a potential catastrophic event for the car passengers and other vehicles, trucks and buses, if this were to happen on a highway traveling at 65 MPH, as there may be no way avoid getting in an chain reaction accident with the following traffic moving at highway speeds. This could be especially hazardous in high volume rush hour traffic, at night or under weather impaired conditions (I.e, fog, rain or snow). After a little research, I was made aware that this is not an isolated incident and gm is quite knowledgeable of this waveplate transmission problem, in all models with the same drivetrain platform, but have done little to step up and remedy the problem. If you are out of warranty (5 years or 100,000 miles) you are going to be out several thousands of dollars for the repairs, suffer a great deal of inconvenience and are putting yourself and others on the road at great risk. I hope this will help bring this issue to head, as gm needs to recall and repair this waveplate transmission problem, as it present a serious exposure and liability to injure and harm the traveling public.

Filed Jul 18, 2013 · Steering · 129,000 miles · NJ

While making a turn during a rain storm the engine belt began to squeal and I subsequently lost power steering and the battery warning light came on. I was able to get the vehicle to the side of the road without incident until the power steering came back. I've had this happen several times during rain events since I've owned the vehicle. It appears to occur when excessive water gets onto the drive belt controlling the engine and power steering unit.