2008 cadilliac srx auto temp not working passengers side not changing temp staying cool

SOURCE: a c works on passenger side but not drivers side

Low refrigerant level will cause this. If not there is a seperate motor for each side temp door and one may have failed

Ronny Bennett Sr.

• 6988 Answers
• Posted on Jul 03, 2009

SOURCE: blows warm air on Drivers side-cool on passenger side

add freon to system

SOURCE: AC blowing cool driver side and hot on passenger side

I have the same problem, mine resets itself when the key is turned off.must be a chevy thing.

SOURCE: 96 grand caravan passenger side heat problem.

The wire on the back of the control is most likely broken, I had the opposite (drivers side allways cold) I dissconnected the solid light green wire and now have hot air all the time, I disconnect it in the summer for cool air, the part is very expensive, $70.00 at a salvage yard!

SOURCE: Driver's side heat doesn't work

There is a problem with the drivers side air mix valve. I have seen several problems with these. Sometimes the air mix valve (door) gets stuck and when you try to change it the air mix valve link can pop loose, or sometimes it breaks. Sometimes it also breaks the bellcrank on the door itself. The programmer unit can also be defective. Please refer to the picture below. The thing to do is to remove the lower hush panel and possibly the glove box assembly so you can get a good look at what is going on. Then switch the driver's temperature control from hot to cold and back again to observe the movement of the programmer actuator, the mix valve link, etc. to determine where the malfunction is.