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MaintenanceExamples of acceptable condensation are:• Presence of thin mist (no streaks, dripmarks or droplets).• Fine mist covers less than 50% of thelens.Examples of unacceptable moisture(usually caused by a lamp water leak) are:• Water puddle inside the lamp.• Large water droplets, drip marks orstreaks present on the interior of thelens.Take your vehicle to a dealer for service ifany of the above conditions ofunacceptable moisture are present.Replacing Fog Lamp Bulbs (IfEquippedE1673643. Remove the two bolts from the taillamp assembly. Then, carefully pull thelamp assembly from the tailgate pillarby releasing the two retaining tabs.4. Disconnect the electrical connectorfrom the bulb.E1638261. Make sure the headlamps are off.2. Disconnect the electrical connectorfrom the fog lamp bulb.3. Turn the bulb counterclockwise andremove it from the fog lamp.4. Install the new bulb in reverse order.ReplacingBrake/Tail/Turn/Reverse LampBulbs1. Make sure the headlamps are off.2. Open the tailgate to access the taillamp assembliesE1673655. Rotate the bulb socketcounterclockwise and remove it fromthe tail lamp assembly.6. Install the new bulb in reverse order.Replacing Cargo Lamp and HighmountBrake Lamp Bulbs1. Make sure the headlamps are off.2. Remove the two screws and move thelamp assembly away from the vehicleto expose the bulb sockets.253F150 (TF6) , enUSA