2003 Envoy driver side vents blows hot air
After I unhooked my battery and hooked it back up my
driver side vents blow hot air but passenger side blows
cold. How do I fix this
Look up online how to re-calibrate blend actuators. I don't recall how. Worst case is you need to replace actuators, which is a PIA, but pretty common when re-hooking the battery back up.