External Temperature Display Button
WARNING: This page is about a different car, the 1998 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
With A/C system operating and preset temperature displayed, pressing external temperature display switch changes display to outside temperature. Pressing switch again will change display back to preset temperature. With A/C system off, pressing external temperature display switch will turn external temperature display off. Pressing switch again will turn external temperature display on.