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How the Tyre Pressure Sensor Works

Model: (Various brands) Various
Part: Onboard computer

In this video, you can see how the tyre pressure warning light works. If the tyre pressure warning light (!) comes on, it means that one tyre is losing pressure. There are several reasons for this light to activate: for example, if the tyres have recently been changed, if the tyres have been rotated, or if there is a puncture, or when inflating the tyres. The tyre pressure sensor allows you to constantly monitor the pressure status of the tyres to avoid road accidents; essentially, the sensor sends a signal to the control unit that activates the warning light when a tyre has lost its inflation pressure. As soon as this light comes on, it is important to take the vehicle to a tyre fitter or inflate it at a petrol station as soon as possible.

Updated on 24 May 2026 by ScegliAuto

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