The 2024 Toyota Prius is equipped with a Tire Pressure Warning System (TPWS). This system monitors the tire pressure in each tire and alerts the driver if it detects that any tire is significantly under-inflated. When the system identifies a drop in tire pressure, a warning light illuminates on the instrument cluster, prompting the driver to check and inflate the tires to the recommended levels. Maintaining proper tire pressure is crucial for safe driving, optimal fuel efficiency, and extending tire life. Always refer to the owner’s manual for detailed instructions on resetting the TPWS after adjusting tire pressures.
The tire pressure warning system of this vehicle adopts a 2- type warning system.
The tire pressure warning light comes on and a buzzer sounds when the tire inflation pressure becomes low due to natural air leakage or outside temperature
The tire pressure warning light comes on and a buzzer sounds when the tire inflation pressure becomes low suddenly due to a blowout.
However, the system may not be able to detect sudden tire ruptures (bursting, etc.).
The illustration used is intended as an example, and may differ from the image that is actually displayed on the multi-information display.
How to change the unit
Changing the unit cannot be performed while the vehicle is moving.
Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure checks. Make sure to check tire inflation pressure as part of your routine of daily vehicle checks.
Tire inflation pressure
It may also take a few minutes to display the tire inflation pressure after inflation pressure has been adjusted.
Situations in which the tire pressure warning system may not operate properly
If tire position information is not correctly displayed due to the radio wave conditions, the display may be corrected by changing the location of the vehicle as the radio wave conditions may change.
Warning performance of the tire pressure warning system Toyota Prius 2024-2025
The warning of the tire pressure warning system will change in accordance with driving conditions.
For this reason, the system may give a warning even if the tire pressure does not reach a low enough level, or if the pressure is higher than the pressure that was adjusted to when the system was initialized.
When replacing tires or wheels on your Toyota Prius, it is essential to also install new tire pressure warning valves and transmitters. After installation, new ID codes for these valves and transmitters must be registered in the tire pressure warning computer to ensure proper functionality.
When replacing the tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered, the tire pressure warning system will not work properly. In this case, after driving for about 20 minutes, the tire pressure warning light blinks for 1 minute and stays on to indicate a system malfunction.
NOTICE
Repairing or replacing tires, wheels, tire pressure warning valves, transmitters and tire valve caps
To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and transmitter may not operate properly. If a liquid sealant is used, contact your Toyota dealer or other qualified service shop as soon as possible. Make sure to replace the tire pressure warning valve and transmitter when replacing the tire.
Registration of the position of each wheel after performing a tire rotation
It is necessary to register the position of each wheel after performing a tire rotation.
Wheel position registration can be performed by oneself. Wheel position registration is performed by driving forward with moderate left and right turns.
However, depending on the driving conditions and driving environment, registration may take some time to complete.
The wheel position registration procedure cannot be performed while the vehicle is moving.
A message indicating that wheel position registration is being performed will be displayed on the multi-information display. "---" will be displayed for the tire inflation pressure of each tire and wheel position registration will begin.
When wheel position registration is complete, a message indicating that registration has been completed and the inflation pressure of each tire will be displayed on the multi-information display.
Even if it is not possible to drive continuously at approximately 25 mph (40 km/h) or more, registration can be completed by driving for a long time. However, if registration does not complete after driving for 1 hour or more, park the vehicle in a safe place and leave it with the power switch in ON for approximately 15 minutes or more, and then perform the driving procedure again.
When performing wheel position registration
Wheel position registration procedure
If the wheel position cannot be registered easily
In the following situations, it will be necessary to perform the tire inflation pressure setting procedure of the tire pressure warning system.
If the tire inflation pressure has been adjusted to the specified level, perform the tire inflation setting procedure by selecting specified inflation pressure on the multiinformation display.
When the tire inflation pressure is to be other than specified, such as when tires other than the specified size are used, etc., set the tire inflation pressure using the current pressure. Make sure to adjust the tire inflation pressure of each tire to the appropriate level before performing tire pressure setting. The tire pressure warning system operates based on this tire inflation pressure.
Setting by selecting a specified tire inflation pressure
The tire inflation pressure cannot be set while the vehicle is moving.
The tire pressure warning light will slowly blink 3 times.
After setting the tire inflation pressure, a message indicating that setting has been completed will be displayed on the multi-information display.
If the tire inflation pressure cannot be set easily
Perform the procedure again from the beginning.
Setting using the current tire inflation pressure
WARNING
Before performing tire pressure setting
Make sure to adjust the tire inflation pressure of each tire to the appropriate level. Otherwise, the tire pressure warning light may not illuminate even if the tire inflation pressure drops or may illuminate even though the tire inflation pressure is normal.
Make sure to adjust the tire inflation pressure with the tires cold.
The tire inflation pressure cannot be set while the vehicle is moving.
The tire pressure warning light will slowly blink 3 times and a message indicating that tire inflation pressure is being set will be displayed on the multi-information display.
After setting the tire inflation pressure, a message indicating that setting has been completed will be displayed on the multi-information display.
Warning performance of the tire pressure warning system
Also, make sure the tires are cold before performing the tire pressure setting procedure or adjusting the tire inflation pressure.
Tire inflation pressure setting procedure
If the tire inflation pressure cannot be set easily
Perform the procedure again from the beginning.
The tire pressure warning valve and transmitter is equipped with a unique ID code. When new tire pressure warning valves and transmitters are installed, new ID codes must be registered in the tire pressure warning computer.
Before performing ID code registration, make sure that no wheels with tire pressure warning valve and transmitters installed are near the vehicle.
The ID code registration procedure cannot be performed while the vehicle is moving.
If ID codes have already been registered for that wheel set, the tire pressure warning light will slowly blink 3 times, and a message indicating that change is occurring will be displayed on the multi-information display.
The tire pressure warning light will slowly blink 3 times and a message indicating that ID code registration is being performed will be displayed on the multi-information display.
Wheel set changing will be canceled and registration will begin.
When registration is being performed, the tire pressure warning light will blink for approximately 1 minute then illuminate and "---" will be displayed for the inflation pressure of each tire on the multi-information display.
When registration is complete, the tire pressure warning light will turn off and a message indicating that registration has been completed will be displayed on the multi-information display.
Registration may take longer than normal to complete if the vehicle speed cannot be maintained at approximately 25 mph (40 km/h) or more. If registration cannot be completed after driving for 1 hour or more, perform the registration procedure again from the beginning.
If the specified tire inflation pressure is the same, it will not be necessary to perform the tire inflation pressure setting procedure.
When registering ID codes
If ID codes are not registered easily
Canceling ID code registration
To cancel ID code registration after it has been started, select "Register New Valve / ID" again on the multi-information display.
If ID code registration has been canceled, the tire pressure warning light will turn off.
If the warning light does not turn off, ID code registration may not have been cancelled correctly. To cancel registration, select "Register New Valve / ID" on the multi-information display.
Selecting wheel set
Your vehicle is equipped with a tire pressure warning system with a function to register two sets of ID codes. This allows for registration of a second wheel set, for example a winter set.
ID codes can be registered by yourself.
The tire pressure warning light will slowly blink 3 times, a message indicating that change is occurring will be displayed, and the wheel set change will begin.
Wheel set change will begin and the tire pressure warning light will blink for 1 minute and then illuminate.
Also, while the change is being performed, "---" will be displayed for the tire inflation pressure of each tire on the multi-information display.
After approximately 2 minutes, the wheel set change will complete, the tire pressure warning light will turn off, and a completion message will be displayed on the multi-information display.
If changing does not complete after approximately 4 minutes, a message indicating that the change could not be completed will be displayed.
Check which wheel set is installed and perform the change procedure again from the beginning.
If the specified tire inflation pressure is the same, it will not be necessary to perform the tire inflation pressure setting procedure.
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