Headlight Washing

Headlight Washing (if equipped)
When the headlights are on, the Headlight washer pump is activated with the first activation of the windshield washer pump. It is only activated again after five successive windshield washer cycles during the same ignition key on cycle (rest function). The GM recognises headlights on via K-Bus signalling. The GM provides a ground on the headlight washer relay control circuit providing pump operation. The headlight washer pump is located on the side of the washer fluid reservoir.