Programming the automatic temperature control module

She is a tough one! Set the temperature to 75 degrees. Engine must be running, and car is standing still. There is six push buttons on the controller. Press the three right buttons at the same time until the display starts to flash. Release the buttons, then sit back and wait. The controller will run through a series of self tests and will calibrate the mode doors. If the flashing stops and the "F" or "C" shows up, you are done.

If a diagnostic fault code is displayed, record that number, then press the "panel mode" button once to see if a second fault code was stored. You can press any other button to exit the calibration mode early.