Got 2006 g6 gt, for Valentines Day, months after it would literally turn off while I was driving especially in my son in the car not having power steering while my car comes to a safe stop....happened couple times brought it into shops to figure out the problem and no one could figure it out said there's nothing wrong with your car, very frustrating especially when you think your car is safe. After couple years it starts working perfectly fine no problems after 3 years than all of a sudden it stopped again, lost all control of car, no accident but close to getting in one ......than my bf was you tubing and notice this default,

when your key is in the ignition and your in gear driving the key isn't suppose to move while in the ignition, that was happening, while driving I must of bumped my key leash which cause the key to move from the ignition and cause my car to shut off power completely!!! .I'm sure theres other g6 out there with this problem, my bf said there was an article about a girl dying from this defect!! Be carful check to see if u can move your key while driving?!!!!

I have have a '06' G6 GTP Hardtop convertible. Engine spontaneously shuts off and ABS light comes on every time I hit a speed bump, drive over railroad tracks, hit a pot hole. etc. Basically, every time I hit some sort of big bump on the road. When this happens, I would pull over the road, put it in park, and try to restart the engine. But, I would have to try several times before the car turns over. I would put car in total stop, park, turn off key, and wait a few seconds before restarting car. Sometimes it starts right up, other times would take a few attempts. It's almost like I need to wait for the car to reset itself. There is power when restarting, but it would not turn over immediately. Not even a starter sound or engine crank. It has gotten worse over the past week and and my car is shutting off more often. This has become hazardous especially driving on a thru-way.

I did take the car to a Pontiac dealer about a year ago to address this problem. The dealer changed out the electrical unit to a tune of $600.00. I brought the car back to dealer for same issue, and was basically told they could not find anything wrong with the car.

I have have a '06' G6 GTP Hardtop convertible. Engine spontaneously shuts off and ABS light comes on every time I hit a speed bump, drive over railroad tracks, hit a pot hole. etc. Basically, every time I hit some sort of big bump on the road. When this happens, I would pull over the road, put it in park, and try to restart the engine. But, I would have to try several times before the car turns over. I would put car in total stop, park, turn off key, and wait a few seconds before restarting car. Sometimes it starts right up, other times would take a few attempts. It's almost like I need to wait for the care to reset itself. There is power when restarting, but it would not turn over immediately. Not even a starter sound or engine crank. It has gotten worse over the past week and and my car is shutting off more often. This has become hazardous especially driving on a thru-way.

I did take the car to a Pontiac dealer about a year ago to address this problem. The dealer changed out the electrical unit to a tune of $600.00. I brought the car back to dealer for same issue, and was basically told they could not find anything wrong with the car.

ok 5 days ago i went and traded cars and purchased a 2006 Pontiac g6.. boy did i make a big damn mistake!!!!!! of course when i test drove it everything was fine, no noises so i was like yeah i like this car it looks good drives good.... well they must have known the existing problem and greased something because now there is the most pain in the ass sound!!! i called dealership and told them so monday im going in for them to tell me whats wrong with it... i told him that i wanted a different car that i didn't have the money to fix problems that they should have before putting it out for sale!!!!! i really don't know how some of these dealers sleep at night selling people pieces of sh*t and then sleep at night... well one of these days it will come back and bite them in the ass!!! i will keep y'all informed if i do get another car!!! or we will have war lol

I own a Pontiac G6, 2006 and for the past year its been giving me lots of problems, when I've been driving for a long period of time my car just shuts off. Message on Radio reads engine power reduced, it ususally takes me a couple of tries before it turns back on. Once on and Im driving and come to a traffic light or stop it turns off again. Just spent $2,300.00 to fix it mechanic said I had a leak and my gas was burning and mixing with the coolant. Got it from the shop and still having the same problem feel like I was gagged. Now their telling me its the throttle body. Anyone has any suggestions????