Fleet operators are being reminded that a car displaying a Tyre Pressure Monitoring System (TPMS) fault when submitted for its MOT will result in a test failure.

Millions of cars in the UK are now fitted with tyre pressure monitoring systems, which monitor the vehicle’s tyre pressure and will alert the driver to over- or under-inflation.

Stuart Jackson, chairman of TyreSafe, said: “Although TPMS technology has been around for decades, its inclusion in new model vehicles has only been mandated in Europe since 2012 and on all new cars since 2014. This led to a gradual introduction into the market over a period of years and with little or no fanfare to help educate motorists.

“Our members have been telling us that they’re encountering a lot of customers who either aren’t aware of how these systems work, and need to be maintained, or just see them as an expensive luxury rather than the crucial safety feature they are.

“This is why we have produced a video: to communicate the importance of TPMS and how to use it effectively.They make sure drivers know their tyre pressure when it’s most important – while they are driving.”

The TPMS video is one part of a wider TPMS campaign from TyreSafe. It has produced a range of informational products, including leaflets and posters, that can be found on its website.

Manual tyre checks

While the benefits of TPMS are widely recognised, it is important that they are not seen as a replacement for regular manual tyre safety checks. Pressures should be tested at least once a month or before any long journey, when the tyres are cold using an accurate and reliable pressure gauge.

When checking pressures, it is advisable to also give the rest of the tyre a thorough visual inspection as well as ensuring the tread is not excessively or unevenly worn.

TPMS servicing

To ensure your TPMS system continues to operate properly and reduce the likelihood of an MOT failure, it may be necessary to have the system serviced occasionally. TPMS sensors are designed to last for many years and miles. H owever, after a certain period, the sensor’s internal battery will run out meaning a replacement is needed.

In addition, sensors can become faulty or fail completely as a result of weather damage, corrosion or accidental damage caused when changing tyres. To ensure the sensor remains in good condition, many manufacturers recommend replacement of the valve cap and core components every time a tyre is changed.

When replacement TPMS sensors are fitted to your vehicle, your tyre fitter may need to programme the new component to the car using specialist diagnostic equipment. If your TPMS sensor does develop a fault, under no circumstances should this be removed and replaced with a ‘standard’ non-TPMS type valve. Removing the sensor will not only reduce your safety on the road, it will also result in your car failing its MOT.

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