A common problem we have all faced is when your Tyre Pressure Monitoring System (or TPMS) dashboard warning light turns on. This is especially true when maintaining your tyre pressure during the winter months, due to icy roads. These can be problematic even at the best of times given how confusing dashboard lights can sometimes be!
Luckily, when that tricky tyre pressure warning light comes on, it doesn’t always mean a trip back to the air pump. Cold weather can cause a huge impact on TPMS sensors, read on to find out more.
Firstly, the way that TPMS works is through a system in your car that, working in tandem with the sensors in each of your wheels, monitors the pressure of the tyres and alerts you if it is low. The warning light on your dashboard lights up when the sensors in your tyres detect that it has dropped 25 percent. Low readings can mean danger for drivers, leading to crashes and/or blowouts on wheels.
However, cold weather conditions can affect these readings, as the pressure in the tyres will naturally fall due to the colder air and weather. This will cause the TPMS system to send an alert out, because it will assume that the drop is due to a problem with the tyre, not the weather. But when you drive for a short period of time, your tyres will warm up, which will change the pressure back to what the system assumes is safe levels, turning the light off.
Sometimes you just need to think twice when you see the tyre pressure warning light, it could save you a job. However, if the light is still on after an extended drive, it might be a good idea to double check your pressure.