After jumping off my truck from a dead battery, my mode actuator only works in the defrost mode. I have tried the recalibration methods with no luck. The truck is a 2004 silverado with the single zone control. The temperature works fine as well as the fan speed. The recirculate button also works. I would appreciate any help trying to get this fixed.
Thanks,
Philip

 

try disconnecting the negative cable for about 1 min. then hook it up and try again. had to replace my battery in my 03, and same thing happened. worked fine after

good luck

 

Thanks for the reply, unfortunately I've tried that already. I left the battery off overnight. Since it looks like I'm going to dig into the dash, what components should I focus on? Are there any other options before I dig in?

It seems that the "stuck in defrost mode" issue has been addressed before, but I have not found a posted solution. Any help on this ? ?