1997 Ford F250 Owner's Manual - Page 65

NOTE: You may notice that the lights flicker when the vehicle is turned on or off. This is a normal condition. RWARNING The Daytime Running Light (DRL) system will not illuminate the tail lamps and parking lamps. Turn on your headlamps at dusk. Failure to do so may result in a collision. Lighting Up the Instrument Panel and the Interior of Your Vehicle The instrument panel lights can be turned on by pulling the headlamp switch toward you to either the first or outer position. You can brighten or dim the instrument panel lights by rotating the headlamp switch knob. Cargo, Courtesy and Dome Lamps The interior/courtesy lamp is automatically turned on when the driver or passenger door is opened. Turning the headlamp switch fully counterclockwise will operate the interior lamp when the doors are closed. Interior/Courtesy lamp 64