Well my car had been sitting for two weeks because my brakes were real bad. So when I drove my car yesterday, I put a cd in and it spits it right back out and it gave my a code E20. But later on I put the cd back in to see what would happen and it played, then today it does the same sequence. Could this be because of the cold weather maybe, this is the first time ever I had this problem.

CD Errors
· E20 or CHECK CD : Cause(s): The CD player cannot focus on the disc or there is an internal focus problem. Correction(s): Try cleaning the disc or using a new disc. Make sure the disc is loaded correctly. The road could be too rough or there is too much humidity. If the problem is not corrected, service the unit at an ACDelco® Service Center.

most likely due to the cold weather!!