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MaintenanceE1673613. Loosen the three retaining bolts (twoat the top of the lamp, one at the lowerinboard corner).4. Once the three retaining bolts areremoved, slide the headlamp assemblyforward, disconnecting the two snapattachments at the fender.5. Disconnect the electrical connectorfrom the bulb by pulling rearward.E1673637. For the park lamp, turn lamp or sidemarker lamp bulbs, disconnect theelectrical connector from the bulb bypulling rearward, then remove the bulbby turning it counterclockwise andpulling it straight out.8. Install the new bulb(s) in reverse order.Replacing HID Headlamp Bulbs (IfEquipped)The low beam headlamps on your vehicleuse a high intensity discharge source.These lamps operate at a high voltage.When you have a burned out bulb, youmust have the bulb and starter capsuleassembly replaced by an authorized dealer.CHANGING A BULBE1673626. Remove the bulb and socket by turningit counterclockwise, then pull it straightout.Lamp Assembly CondensationExterior lamps are vented toaccommodate normal changes in pressure.Condensation can be a natural by-productof this design. When moist air enters thelamp assembly through the vents, there isa possibility that condensation can occurwhen the temperature is cold. Whennormal condensation occurs, a thin film ofmist can form on the interior of the lens.The thin mist eventually clears and exitsthrough the vents during normal operation.Clearing time may take as long as 48 hoursunder dry weather conditions.252F150 (TF6) , enUSA