System Outline
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
* The tire pressure warning system will illuminate the tire pressure warning light if the vehicle is moving and the pressure in any of the tires falls to a point that can impact the driving performance.
* The tire pressure is directly measured by air pressure sensors installed in the wheels.