RECIRC Mode
WARNING: This page is about a different car, the 1999 Cadillac Eldorado and 1999 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
In this mode, inside air is recirculated through A/C-heater system. RECIRC mode is not available during DEFROST or DEFOG mode. Manual RECIRC mode is canceled when any other mode is selected or ignition switch is cycled off.