TPMS Knowledge

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What is TPMS?

TPMS stands for Tyre Pressure Monitoring System, a safety feature that continually monitors a vehicles' tyres and alerts the driver to changes in tyre pressure. The changes in tyre pressure can be detected by either Direct or Indirect means but both methods will, as a minimum, illuminate a warning light on the vehicle dashboard display and sound an audible alert when 25% deflation has occurred.

Early TPMS were first introduced as an option on high-end luxury vehicles as early as the 1980s, although it wasn't until the year 2000 that it was first fitted as a standard feature.
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Tyre Pressure Monitoring and the Law in Europe

From November 2012 all new type vehicles in the M1 category (vehicles under 3.5 Tonnes with less than 8 seats) will be required by law to have Tyre Pressure Monitoring System installed. This applies to the road wheels not the spare.
By November 2014 all new passenger vehicles will have to have TPMS installed by the manufacturer.
The law is not currently retrospective, and does not apply to older vehicles.
Many car manufacturers have already introduced TPMS to their vehicles ahead of the 2012 legislation change.
Renault Peugeot and Citroen have fitted TPMS to some models since 2000.
More and more cars now have TPMS already fitted. Showrooms are full of TPMS compliant cars.
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