2008 Toyota Sequoia Owners Manual - Page 216

2 -3 . Ope ra t ing t he light s a nd w ipe rs H e a dlight cle a ne r sw it ch (if e quippe d) Washer fluid can be sprayed on the headlights. Press the switch to clean the headlights. n The headlight cleaner can be operated when The engine switch is in the ON position and the headlights are turned on. NOTICE n When the washer fluid tank is empty Do not use this function when the washer fluid tank is empty. This may cause the washer fluid pump to overheat. 182