A tire pressure monitoring system includes a tire pressure detecting device
attached to each of tires of a vehicle and detecting a tire pressure, a
transmitting device that transmits radio signals indicative of a detected
tire pressure of each tire and each corresponding ID code provided to each
tire separately, a receiving device attached to a vehicle body side and
receiving the radio signals from the transmitting device, and a controller
that controls a tire deflation warning. The controller includes an ID code
registration section that registers the ID code of each tire by updating
data stored in a memory, and a jack-up determination section that
determines whether the vehicle has been jacked up. The ID code
registration section performs registration of the ID code of each tire
when the jack-up determination section determines that the vehicle has
been jacked up. A tire pressure monitoring method is also provided.
