I have had several minor problems with my cobalt, over the years, including needing a new windshield wiper motor after two years. However, this new problem takes the cake. The sensor that signals the car is in park doesn't work. Therefore I cannot turn off my car and remove my key, until the battery dies. My friend who also has a 2006 cobalt had the same problem, she got hers fixed for $450. They claim not a common problem, but strange both of us had the issue. Mine is automatic and hers is manual, so that sounds like more than a few people would have this problem.
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.