As my son was entering a Busy Intersection tonight his 2007 Colbalt shutdown again. Last time this happened (couple months back) a the GM dealer charged us $400 and assured us that they fixed the Problem, I Say "BS" My son almost got T-boned this time as his car ground to a halt in the middle of the intersection. It appears to me that these cars are Dangerous but I guess someone needs to be killed before any action will by taken by GM. Guess I need to call the NSTB AGAIN!!!!