Replace or rotate tires in accordance with maintenance schedules and treadwear.
- Checking tires

1. New tread
2. Treadwear indicator
3. Worn tread
The location of treadwear indicators is shown by the “TWI” or “Δ” marks, etc., molded on the sidewall of each tire.
Check spare tire condition and inflation pressure if not rotated.
- Tire rotation

Rotate the tires in the order shown.
To equalize tire wear and extend tire life, Toyota recommends that tire rotation is carried out at the same interval as tire inspection.
- The tire pressure warning system
Your Toyota is equipped with a tire pressure warning system that uses tire pressure warning valves and transmitters to detect low tire inflation pressure before serious problems arise. The compact spare tire is not equipped with a tire pressure warning valve and transmitter.
Washer fluid
Installing tire pressure warning valves and transmittersIntake Manifold Runner Position Sensor / Switch Circuit (Bank 1) (P2014,P2016,P2017)
DESCRIPTION
The tumble control valve position sensor is a non-contact type sensor.
The position sensor measures the opening angle of the tumble control valve. The
sensor is reliable and accurate, as it is electrically controlled by Hall elements.
...
The distance display and buzzer
When a sensor detects an obstacle, the direction of and the approximate distance
to the obstacle are displayed and the buzzer sounds.
- Corner sensor operation and distance to an obstacle
The system operates when the vehicle approaches within the fol ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...