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4-3. Do-it-yourself maintenance
■ When replacing tires and wheels
Be sure to install tire pressure sensors on the wheels.
The ways to set up are below.
● Remove the sensor from the old wheel and install it to the new wheel.
● Keep the same wheel with tire pressure sensor and replace the tire alone.
● Use a new wheel and sensor. You have to register an ID code for a new sensor.
■ When purchasing new tires
Consult your Lexus dealer.
■ Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has
never or seldom been used or damage is not obvious.
■ If the tread wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
■ Low profile tires
Generally, low profile tires will wear more rapidly and tire grip performance will be
reduced on snowy and/or icy roads when compared to high aspect ratio tires, etc.
Be sure to use snow tires or tire chains on snowy and/or icy roads and drive care-
fully at the speed appropriate for road and weather conditions.