2003 Subaru Impreza Owner's Manual - Page 151

Instruments and controls Parking light switch Fog light switch (if equipped) The parking light switch operates regardless of the ignition switch position. By pushing the front end of this switch, following lights will come on. - Parking lights - Tail lights - License plate lights To turn off, push the rear end of the parking light switch. Avoid leaving these lights on for a long time because that will run down the battery. 1) Indicator light The fog lights operate only when the headlights are on low beam. Push the fog light switch to turn the fog lights on. Press the switch again to turn them off. The indicator light located on the switch will illuminate when the fog lights are on. 3-20