Chevrolet Trailblazer Air Conditioner Switch

The Following Electrical Issues All Occurred At The Same Time: Both Driver And Passenger Door Lock/power Window Controls Not Working. ...

Had To Change Battery And Now My Air Is Not Coming Out On The Dash Board It's All Going To The Bottom And Will Not Switch Over.

When The Switch On The Air Condition Is Turned Of, There Is Still A Little Air Blowing Out. The Same Is Happening With The Heat. What...