Lexus 2003 LS Owner's Manual page 43

The wiper lever must be in the "INT" position.
The time interval between sweeps is shortened when the
vehicle speed increases. When the vehicle speed reaches
more than about 20 km/h (12 mph) with the interval adjuster in
"F" position, the time interval becomes the shortest 1.5
seconds.
If you stop the vehicle with the wiper switch in the "LO" position,
the wiper speed automatically changes from low speed to
intermittent operation speed.* This function does not work
when the interval adjuster is in the "F" position.
NOTE: *This feature can be deactivated. Ask your Lexus
dealer for details.
For mist wiper operations (a single wipe), pull the lever
toward you and release it.
To make the washer squirt, push the button on the end of
the lever.
If the wiper lever is in the "OFF" position, the wipers will
automatically make 3 wipes and then a single wipe later to
sweep the windshield completely.* The interval between the
3 wipes and the last wipe will depend on the vehicle speed.
The last sweep does not happen if the vehicle speed exceeds
about 170 km/h (106 mph).
NOTE: *The last single wipe can be deactivated. Ask your
Lexus dealer for details.
The warning message "LOW WASHER FLUID" is displayed in
the multi–information display when the fluid level in the tank
becomes very low. For information on adding washer fluid, see
"Adding washer fluid" on page 396.
In cold weather, warm the windshield with the defroster before
using the washer. This will help prevent icing, which could
block your vision.
The rear window and outside rear view mirror defogger
automatically turns on when you operate the wipers.
NOTICE
Do not operate the wipers if the windshield is dry. It may
scratch the glass.
SWITCHES
29