2012 Ford F350 Super Duty Owner Guide 4th Printing - Page 92

Lights INTERIOR LAMPS Front map lamps (if equipped) The map lamps are located on the overhead console. Press the controls on either side of each map lamp to turn on the lamps. The map lamps also light when: • any door is opened, • the instrument panel dimmer switch is rotated up until the courtesy lamps come on, and • any of the remote entry controls are pressed and the ignition is off. Rear dome/map lamps Your vehicle may have map lamps within the rear dome lamp. Press the switches on either side of the dome lamp to turn the lamps on. BULB REPLACEMENT Lamp assembly condensation Exterior lamps are vented to accommodate normal changes in pressure. Condensation can be a natural by-product of this design. When moist air enters the lamp assembly through the vents, there is a possibility that condensation can occur when the temperature is cold. When normal condensation occurs, a thin film of mist can form on the interior of the lens. The thin mist eventually clears and exits through the vents during normal operation. Clearing time may take as long as 48 hours under dry weather conditions. Examples of acceptable condensation are: • Presence of thin mist (no streaks, drip marks or droplets) • Fine mist covers less than 50% of the lens 92 2012 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)