Wiring problems of the 2012 Chevrolet Impala

I purchased this car used in 2014 with ~30,000 miles, and it presently has ~85,000 miles. In that time I have replaced 4 gas pedals because the alert triggered "service stabilitrak" tells the technician to replace the gas pedal - clearly not the problem. Essentially, when the defect occurs, engine power is reduced to where the car can barely get out of its own way which is really dangerous during highway rush hour (when folks drive more aggressively) or pulling onto a roadway from a dead stop. If I power the car down and restart it, the error will usually clear, but often reoccurs. Since it tends to happen on hot, sunny days (temp >75f) when the a/c is running, it feels like a wiring problem. The dealer service department suggested replacing the body control module, but could not guarantee that would resolve the issue. Based upon the number of complaints over a similar issue, it appears that gm has a problem that it is not willing to address with a recall or service bulletin.