Tire Monitoring System: Service and Repair

Initializing the Tire Pressure Warning System (U.S.A. only)
The tire pressure warning system must be initialized in the following
circumstances:

- When rotating front and rear tires which have different tire inflation pressures
- When changing the tire size

When the tire pressure warning system is initialized, the current tire inflation pressure is set as the pressure benchmark.

How to initialize the tire pressure warning system

STEP 1 Park the vehicle in a safe place and turn the engine switch (vehicles without a smart key system) or the "ENGINE START STOP" switch (vehicles with a smart key system) off.
While the vehicle is moving, initialization is not performed.

STEP 2 Adjust the tire inflation pressure to the specified cold tire inflation pressure level.
Make sure to adjust the tire pressure to the specified cold tire inflation pressure level. The tire pressure warning system will operate based on this pressure level.

STEP 3 Turn the engine switch to the "ON" position (vehicles without a smart key system) or the "ENGINE START STOP" switch to IGNITION ON mode (vehicles with a smart key system).





STEP 4 Push and hold the tire pressure warning reset switch until the tire pressure warning light blinks slowly 3 times.

STEP 5 Vehicles without a smart key system
Wait for a few minutes with the engine switch in the "ON" position and then turn the engine switch to the "LOCK" position.
Vehicles with a smart key system
Wait for a few minutes with the "ENGINE START STOP" switch in IGNITION ON mode and then turn the "ENGINE START STOP" switch off.

NOTE:
When replacing tires or wheels, tire pressure warning valves and transmitters must also be installed. When new tire pressure warning valves and transmitters are installed, new ID codes must be registered in the tire pressure warning computer and the tire pressure warning system must be initialized. Have tire pressure warning valve and transmitter ID codes registered by a Scion dealer.