1.)What component or system failed or malfunctioned, and is it available for inspection upon request? A.) To start with i went in to the dealership for a timing chain recall they said the work was performed. This was never done all they did was replace ECU from an older car so that the code would not come back (REPLACED WITH A 2002 ECU) to get rid of the timing chain recall code. this code never existed in 2002..Complete negligence these SUV could hurt or kill someone B.)Huge Electrical issue suv stops on its own while driving. Sometimes does not start at all. can not pass emission for the life of it.. new codes all the time i have replaced just about Every sensor and switch there is... this is a money pit and death trap.. C.) The Investigation NHTSA should have included the Lambda Frame it's the same design flaw they're trying to fix one problem with an old problem. The ones on these have this fixed tie rods, lateral arms and upper control arms the bushings will wear out eventually and repeat the bouncing up and down rocking back and forth rear end barely staying on the ground it's a very dangerous ride and you see these vehicles on the expressway on a daily basis you look at them for what you know now I get really nervous seeing these vehicles. Arcadia rollovers Call it what you will it's the same problem the needs a total redesign it's defective anyway you look at it. Just looking to how many Roll over there are with this body frame and suspension it's got its own self-contained pit maneuver. I believe GM is aware of these issues that's why they're giving everybody a hard time to fix it they run and say something else. Looks like we're getting back to too big to fail. D.) What makes this vehicle even more unsafe and very dangerous is the fact that the reluctor wheel can slip. This will sundown false DTC codes thinking that problems exist other places spending lots of money an unnecessary work when along GM knew about this problem once again.

- Des Plaines, IL, USA

My clock spring broke causing the cruise control to stop, my suspenion on my car is going out at 167,000 miles maling the car ride horribly, and apparently there is a problem with the wave plate in the transmission there have been multiple complaints about this problem but noone wants to do anything I was driving the moments these occured

- Gay, GA, USA

2009 GMC Acadia. Consumer writes in regards to loss of engine power, steering wheel power and faulty brakes. The consumer the liftgate and lamp were repaied under recall, but the failure continued. The consumer did not recieve notification for the recalls concerning the engine, transmission, and timing chain.

- Burton, MI, USA

Headlight out 1.5 mo ago, then other side went out. Mechanics have to remove bumper to get to bulb!!! $300-400 minimum labor and parts. Struts if shock absorbers stuck down after up on rack after 2 different tire changes repairs. Car road wobbly until it was fixed at my E pensr. Is this beautiful car a lemon or what?

- Slidell, LA, USA

As my wife pulled out of the driveway, she heard a "clunk" noise, and she had to apply a lot of effort to straighten out the vehicle. My wife has stated that this is almost a common issue with the steering and many times she has to use a lot of force to steer the vehicle in a straight line. We took the vehicle to the dealership who stated that this is a common occurrence and that it would cost $400 to repair this problem. We declined the repair and felt that this was as safety issue and that it should be repaired without any costs to us. We have filed a complaint with the General Motors company however we have only received a form type E-mail indicating that our complaint is in their files. We have also information from other web sites that this is a common issue, however nothing has been done at a federal level. We only have 35,000 miles on this vehicle and now we are really afraid to take any kind of long highway trips for fear that this would happen at highway speeds and that this may result in serious injury and or death of ourselves and our loved ones. Please advise as to what other actions we can take to resolve this safety issue. [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Littleton, CO, USA

The contact owns a 2009 GMC Acadia. The contact stated that while driving 5 mph, she heard a clicking noise coming from the front of the vehicle. The contact took the vehicle to the dealer for inspection and was informed that the cv joints needed to be replaced. The vehicle was then taken to another dealer and they stated that the axle was damaged. The vehicle was repaired, but the failure recurred. The manufacturer was not notified. The failure mileage was 76,000. The VIN was unavailable.

- Edgard, LA, USA

I bought the Acadia new in 2009. At 15K miles cd player turns on at night by itself and runs battery completely down had to go buy a battery charger to get the car started you can't move the car when the battery is dead, a re program fixed the cd player. 35-40K miles dvd player will not work, re program did not work, dealer replaced dvd player. 40K miles water pump went out, 40 K miles wheel alignment went out and wore the front tires to the cord, no mention of compensation for two new tires at a cost of $500. 10K miles further another set of tires had to be replaced at the same cost, this is after dealer wheel alignment,5 K miles more and the alignment had to performed again. Just checked again at 5 K miles more and tires are starting to feather again. At 60K miles one of the driving lights went out. The dealer wants over $100 to replace the bulb, seems as though the front end needs to come off to replace a lightbulb that used to cost a few dollars. The paint has started to peel off the buttons that control the air conditioner fan. The gas mileage is not as advertised. I was told that after 10K miles it would get better, that was 50 K miles a go. Over all this car is a real expensive pile of crap. I would not recommend the Acadia to any one.

- Los Lunas, NM, USA