Heater is stuck on defrost?

1998 Chevy Lumina 3.1 After Replacing Battery My Car Is Now Running Hot, But If I Turn On The Heat It Seems To Fix Problem, But Heat And...

Hi, Went To Use The Defroster And Heater. The Heat Part Works. The Blower Does Not Engage On Any Level Help, Thanks

Air Conditioning Problem 1995 Chevy Lumina 6 Cyl Two Wheel Drive 167000 Miles Ac Blows Out The Floor And Defrost Vents Only On All...

Air Conditioning Problem 1992 Chevy Lumina 6 Cyl Two Wheel Drive Automatic 80000 Miles What Parts Do I Remove To Add The Coolant

Air Conditioning Problem 1992 Chevy Lumina Front Wheel Drive Automatic My Brother Has The Knowledge And The Equipment To Add Freon To...