Carrier/rack problems of the 2010 Chevrolet Impala

Driving home one night after just having my vehicle repaired a few weeks earlier, without warning, my vehicle began to stall. Just before the stall it was driving completely normal with no issues at all. Suddenly the check engine light came on along with the messages of service stabiltrack, traction control disabled, and low engine power. When I took the vehicle to the dealer I bought it from I was told that there was an aftermarket senondary air check valve that was causing the issue. With this they gave me the following codes; p0068, p0340, p0651, and p2135. Due to me just recently getting this part replaced this past February I took it back to the mechanic that replaced it. When I received the vehicle back it would no longer even start. The mechanic then informed me that the air valve would not cause this issue and there was something else wrong with the vehicle and to take it to another dealer. When that was done I was told a second time that it was the air valve. I have now come out of pocket twice for tows that I can't afford. Along with paying for an expensive part possibly twice. Vehicle only has 50k miles on it and has never given me any issues until this year.

Every other week or so I get the "engine power reduced/ service stabiltrack/ service traction control" and the car will loose power. After an hour or so of sitting with the car off, it resets and the check engine light stays on until that eventually also resets. Today I was driving the same trouble codes came on and the car completely lost power I had no ability to accelerate, the power steering was disengaged it also mentioned something about the throttle body this time. Luckily I pulled into a nearby parking lot and the car reset after sitting for about an hour. This warning light and the reduced engine power has been an ongoing issue but I never lost complete power to the engine and steering light until today. This is an unacceptable issue that is ongoing with many gm owners. There needs to be a recall immediately!.

My stability control light came on when I steered to the left. Steering was difficult in the vehicle and the steering wheel/ car shook at low speeds. Dealer was informed of steering noise after purchase of vehicle. Dealer did not recognize any issue. Rack and pinion was replaced at 50,000 by mechanic. Rack and pinion snapped at 90,000 leaving no steering ability in vehicle. Dealer and gm informed as this is a serious safety issue.