Hello, I just got my first 07 impala and I'm having a few issues with it, now I do n is the history of this car, my grandpa bought it in mid 08 and after he passed away my grandma took it and was keeping up on the payments, but since she doesn't drive and I just got my first job I'm taking over the payments and semi retiring my camaro. Anyways my issues seem common around here. My biggest concern right now is my rear defroster doesn't work, it just quit randomly one day, the light kicks on and goes off after an amount of time, the undergone fuse checks out, and after I swapped the power windows and power seats relay tonight and I can here the relay click when the button is pushed so ill have to see if that helps tomorrow morning when I leave for school. Second is the no heat at idle issue, I think I just need to burp the system together air pocket out correct? Besides those two I need to have a shop reset my tire air pressure sensors, I can't get them to reset since I rotated the tires last, and my check engine light is on because of an evap leak :/ I'm going to smoke the system to try and find my leak, it's a small leak cause it takes about a week for the code to reset and trigger the check engine light. Any input on my issues?