2010 Lexus HS 250h Owners Manual - Page 247

2-5. Driving information n When parking the vehicle Park the vehicle and push the P position switch and block the wheel under the vehicle without setting the parking brake. The parking brake may freeze up, preventing it from being released. Selecting tire chains Use the correct tire chain size when mounting the tire chains. Chain size is regulated for each tire size. Side chain: 0.12 in. (3 mm) in diameter Cross chain: 0.16 in. (4 mm) in diameter 2 When driving 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. n Tire chain installation Observe the following precautions when installing and removing chains: l Install and remove tire chains in a safe location. l Install tire chains on the front tires only. Do not install tire chains on the rear tires. l Install tire chains on front tires as tightly as possible. Retighten chains after driv- ing 1/4 ⎯ 1/2 mile (0.5 ⎯ 1.0 km). l Install tire chains following the instructions provided with the tire chains. 245