Wheel being balanced after new tyre fitted.

How do Tyre Pressure Sensors work?

Many vehicles are now fitted with tyre sensors as standard. This system enables the driver to be notified via the dashboard when tyre pressure changes are detected so tyre pressures can be checked and corrected. This is a significant development for vehicle safety as tyre pressure loss can lead to an increased risk of tyre failure and accidents. Before tyre pressure sensors, vehicle tyre pressure monitoring was reliant on the owner regularly checking the pressures at the valve; something often forgotten or neglected by many drivers.

Tyre Pressure Sensor Types,

Direct Tyre Pressure Sensors – This is the most commonly used system and has good reliability. Direct tyre pressure sensors are located inside the tyres, fitted to the back of the inflation valve. Being fitted to the valve allows accurate and reliable pressure readings. When the pressure in the tyre drops past a set parameter a warning light is activated on the dash. Some vehicles report which wheel has the reduced pressure, others just report low pressure so all wheels must be checked. These sensors are fitted with an internal battery which may run flat after a prolonged period. As the units are sealed, batteries cannot simply be replaced.

Indirect Tyre Pressure Sensors – This type of system do not have a dedicated sensor in the tyre but use another sensor also located n the wheel; often the anti-lock braking system sensor. This system works by analysis of the rotational pattern of the wheel. An underinflated tyre will have a smaller radius and will make more or irregular rotations.

Why Tyre Pressure Sensors Matter

Driving a vehicle with under inflated tyres is uneconomical and potentially dangerous. Driving with low pressure in tyres will cause the tyres to become worn faster, fuel consumption will be increased and the handling characteristics of the vehicle will be significantly worse. Driving on an underinflated tyre for prolonged distances can lead to heat build up in the tyre and the risk of a blow out. Never ignore the warnings.

Repeated Low Pressure Warnings

In the event of repeated low pressure warnings then book an appointment at Premier Group. Sometimes a slow puncture can cause repeated low pressure warnings which needs professional investigation for a puncture repair or tyre replacement.

Call Premier Group for all your car care needs on Cannock (01543) 426378.