The tire pressure warning system alerts you when the tire pressure is critically low in one or more of your vehicle’s tires.
The tire pressure warning system light comes on when the ignition switch is set on and goes off after a few seconds. This means the system is operating correctly. If the light comes on again, pressure may be low in one or more tires and should be adjusted. If the light comes on after blinking for about one minute,the tire pressure warning system is not working properly and you should see your Toyota dealer.
This system also features a reset switch located in the left side of the glove box. Press and hold it for a few seconds to reset.
Whenever you change the set tire pressure, as for example when happens when changing tire size, you must initialize the tire pressure warning system with the new settings.