Many vehicles in the UK sold prior to 2010 are not equipped with TPMS. If your car lacks this system, it’s important to manually inspect your tyres each month, after significant temperature shifts, or whenever a tyre appears underinflated. While aftermarket TPMS options exist, they can be costly and installation may demand technical expertise.

If your TPMS indicator remains constantly illuminated, it signifies that one or more tyres are at least 25% below the suggested pressure level. It’s crucial to immediately cease driving, identify the underinflated tyre, and repair or replace it. Operating a vehicle with a tyre deflated to this extent can lead to tyre failure, compromised vehicle handling, or in extreme cases, a rollover.

A flashing TPMS light indicates an issue with a sensor or the TPMS itself, necessitating professional attention. However, it’s wise to manually verify your tyre pressures in the meantime to ensure they remain within safe limits.

Significant weather fluctuations can impact tire pressure; a sharp drop in temperature may lead to decreased pressure as the air within the tire contracts, while a spike in heat can cause the pressure to increase due to air expansion inside the tire.

The friction from driving heats up the tires, which in turn raises the internal pressure.

Tyres naturally lose pressure gradually through minor seepage, either from the valve, around the rim, or through the tyre’s body. While older tyres may deflate faster than new ones, a rapid loss of pressure usually suggests a leak.

TPMS sensors are powered by batteries with a lifespan ranging from 5 to 10 years, influenced by your driving frequency and the conditions in which you drive.