Service Engine Light On problems of the 2012 Chevrolet Malibu

The service engine light has been on for 3 years. Chevy has been unable to diagnose the issue despite changing out the sensors and clearing the codes. This effects the rest of the engine settings including fuel as it adjusts them based on a default. The rail support for the driver's seat has also broken loose and fallen down which makes the vehicle unsafe to drive. This seat issue was only notice earlier this year.

Since I purchased my car in the later part of 2012 (used with 40000mi) I have had several incidents starting with the radio, when I turned on the rear defrost the radio would go to complete static on all stations. While traveling approx. 30mph the service engine light would come on then after stopping the car and restarting the light would go off as well as minimal turning to the right the service esc light would display, in addition to the remote start not working half the time, I have replaced the key fob and gotten a new key and still the same problem exist. The dealership has replaced the radio with a brand new part and still the stations are not clear and while sitting in the car parked all of the lights in the dash sometimes come on for service and the car would idle low then high. The lights in the dash will sometimes completely dim and the display on the radio will be digital. My car now has about 65000 miles on it, and still the car sometimes stalls at stop signs, will be without power and the service esc displays as well as service engine. This has happed too many times to count at this point. Tuesday may 6 2014 my husband was driving approx. 25mph all the lights in dash came on and engine stalled on him so he restarted the car, upon restarting all the lights in the display turned off. Saturday may 10 2014 the radio was complete static. . . This is a constant issue, I keep my gas tank plentiful and have only owned gm vehicles. I am researching other makes at this point.