Tpms sensor how does it work

Direct sensors, though, have one more potential failure point. Over time, these go flat, and the whole sensor needs to be replaced. And, as with replacing sensors for adaptive cruise control or automatic emergency braking, this requires a system recalibration. Maintaining proper tire pressure may not seem as vital as, say, making sure your engine has enough oil.

However, it is still an important maintenance task. If a tire is under- or over-inflated, Car and Driver explains, it messes with the contact patch. Plus, a tire without enough pressure flexes more, AAA explains, which causes excessive heat and accelerated wear. Under-inflation also increases rolling resistance, which makes you burn more fuel.

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Mobile Newsletter chat subscribe. Tire pressure monitoring systems are meant to help drivers catch under-inflated tires before they become a hazard. If your light goes off, it's a good idea to check your tire pressure as soon as possible.

The systems rely on wheel speed sensor data to interpret the size of a tire based on how fast it rotates. Where is the TPMS reset button? The TPMS reset button is often located beneath a vehicle's steering wheel. If you can't find it, try reading your car's manual. Why is my tire pressure light still on after filling tires?

If the TPMS warning light is still on once you've filled your tires with air, double-check your tires to make sure they are inflated to the right pressure. If their air pressure is low, you may have a leak and may have to have the tire replaced or fixed. Where are tire pressure sensors located? Sources Allen, Mike.

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