Lexus GS450h Owner's Manual page 337

Shifting the windshield wiper position
If heavy snow or icy condition is expected, shift the rest position manually.
Grip the hook section of the wiper arm firmly when shifting the wiper position.
To rest position
■
Raise the wiper in line with the wind-
shield.
You can stand the wipers up for the
rest position.
★: More than 10 cm (3.9 in.)
To retract position
■
Lower the wipers by pressing on the
upper part of the hook section.
Tire chain installation
■
Observe the following precautions when installing and removing chains:
Install and remove tire chains in a safe location.
●
Install tire chains on the rear tires. Do not install tire chains on the front tires.
●
Install tire chains on rear tires as tightly as possible. Retighten chains after driving 0.5
●
 1.0 km (1/4  1/2 mile).
Install tire chains following the instructions provided with the tire chains.
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4-6. Driving tips
4