Lexus LS600hL Owner's Manual page 251

NOTICE
When the windshield is dry
■
Do not use the wipers, as they may damage the windshield.
When there is no washer fluid spray from the nozzle
■
Damage to the washer fluid pump may be caused if the lever is pulled toward you
and held continually.
When a nozzle becomes blocked
■
In this case, contact your Lexus dealer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.
LS600hL_U(OM50D26U)
4-3. Operating the lights and wipers
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