Anyone answer questions about automatic air controls on my 96 Buick?

Passenger control doesn't work.

After stopping the engine, the main system automatically goes to heat when restarting engine and the control panel light flashes. It then settles down to correct response.

System then works fine except for the passenger side control.

 

Stupid question. Have you checked the fuses?

 

Yes, I've checked fuses. They're OK.

 

i assume that you mean the passenger temp control has no effect on the outlet air temp?

the fact that the display flashes indicates that it's probably setting as code. that could be important to the diagnostics. it could be as simple as the temp door has gotten disconnected from the actuator...or as funky as the sun load sensor for the passenger side has failed. one you could see with your eye and the other might require a scan tool and some meter tests. i'm not sure this is a DIY kind of problem...i didn't see any TSB's similar to what you describe. if you can get a service manual...there is a performance test that will define any faults and help point in the correct direction. that's the appropriate starting place...

 

Thanks to all of lyou. I guess I'll have to get help from the dealer.

How do I close out this thread to keep others from wasting their time with me?