See also:

Safe Driving
...

Tire Pressure Monitoring System (TPMS) -Required Federal Explanation
Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire infla ...

Tire Pressure Monitoring System (TPMS)
• TPMS monitors tire pressure. • TPMS is turned on automatically every time you start the engine. ...