Interior Mode
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The interior mode feature allows the user to manually control the interior lamps independent of the ignition position. The interior lights turn on when the dimmer switch is rotated to the top (dome) detent. The interior lights are activated by other interior lighting features when the dimmer switch is positioned in the dimming control range. The courtesy lights are kept off when the dimmer switch is rotated to the bottom (dome) detent.