Tire pressure sensor
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. However, it is still accessible from the selected car via links, so may be relevant.
Each sensor is an integrated unit made up of the tire valve stem, a pressure sensor, and a transmitter. The unit is attached to the inside of the wheel, around the valve stem. The sensor transmits the tire pressure to the control unit when tire pressure is less than 168 kPa (1.7 kgf/cm2 , 24 psi). The control unit then turns on the low tire pressure indicator and the appropriate tire indicator(s). When that tire's pressure is increased to more than 198 kPa (2.0 kgf/cm2 , 29 psi), the transmitter sends tire pressure to the control unit, and then the control unit turns the indicators off.