Operation CHARM: Car repair manuals for everyone.

Lighting and Horns: Service and Repair

Some moisture accumulation inside a vented front lamp unit is normal. This normal moisture will appear as a fogging on the inside of the lamp lens, similar to the fog that sometimes appears on the inside of a windshield. This moisture may be removed by activating the headlamps on high beam for 15 minutes.

If water droplets larger than 1 millimeter in size have accumulated on the inside of the lamp lens, the front lamp unit should be replaced.