2009 Ford F150 Owner Guide 3rd Printing - Page 59

Lights Rear dome/courtesy lamps (if equipped) The dome lamp lights when: • any door is opened. • the instrument panel dimmer switch is rotated up until the courtesy lamps come on. • any of the remote entry controls are pressed and the ignition is off. The reading portion, the two outer lights, can only be turned on and off at the lamp. Rear courtesy/reading/cargo lamps (if equipped) The dome portion of the lamp, the center light, can be turned on when the panel dimmer control is rotated until the lamps come on or when any door is opened. With the ignition key in the accessory or on position, the rear dome lamp can be turned on or off by sliding the control. 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 59 2009 F-150 (f12) Owners Guide (own2002), 3rd Printing USA (fus)