Lexus 2013 IS250 Owner's Manual page 299

When parking the vehicle
Park the vehicle and move the shift lever to P without setting the parking
brake. The parking brake may freeze up, preventing it from being
released. If necessary, block the wheels to prevent inadvertent sliding or
creeping.
Selecting tire chains
Except vehicles with 18-inch tires

Use the correct tire chain size when mounting the tire chains.
Chain size is regulated for each tire size.
1
Side chain
(3 mm [0.12 in.] in diameter)
2
Cross chain
(4 mm [0.16 in.] in diameter)
Vehicles with 18-inch tires

Tire chains cannot be mounted on the 18-inch tires.
Snow tires should be used instead.
Regulations on the use of tire chains
Regulations regarding the use of tire chains vary depending on location
and type of road. Always check local regulations before installing chains.

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 driv-
ing 0.5  1.0 km (1/4  1/2 mile).

Install tire chains following the instructions provided with the tire chains.
IS250_EE(OM53B11E)
4-6. Driving tips
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