TPMS Sensor FAQ | Silver Lake Auto & Tire Centers
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Why does the TPMS sensor come on?

Tire Pressure Monitoring System (TPMS) lights can come on for several reasons, the most common being a leak/damage to the tire or changes in the air pressure (1psi decrease for every 10-degree drop in temperature). 

When the TPMS sensor comes on, it will either flash, or stay on without flashing. If the light is flashing, that means there is a malfunction within the TPMS that needs to be diagnosed as soon as possible. If the sensor is not flashing, that means the sensor is working properly and notifying you that your tire pressure is low. This can be as little as a 5 psi change or could mean a completely flat tire.


What do I do when I notice the TPMS sensor come on?

The first step is to test your tire pressure using a tire gauge to check the pressure and make sure it matches the vehicle manufacturer’s recommended PSI (pounds per square inch) level, which can be found in your owner’s manual or in many vehicles on the sticker in the driver’s door on a sticker. Next, visually inspect each tire for damage. Debris punctures are a common reason for tires to lose air pressure. If you find that your tire is at an unsafe PSI level for driving, you may need to put a spare tire on your vehicle. If you need assistance getting the spare put on, give our 24 Hour Towing & Recovery Service (262-567-4131) a call and they will be happy to assist you!


What do I do when the TPMS sensor comes on when driving?

Find a safe spot to park your vehicle and test your tire pressure level with a tire gauge. Variations as little as 5psi can cause a light to come on.  If you are unsure how to check tire pressure or are worried that there is a larger issue at hand, call or bring your vehicle to the nearest Silver Lake Auto Center and we can help you out!


What happens when you continue to drive when your TPMS is on?

If you continue to drive while the light is on, you run the risk of tire failure. Driving on a tire with inadequate pressure causes excessive and premature wear on the tire while also decreasing your ability to safely and properly control your vehicle. 


Abbey Wegner, Service Advisor

Written by Silver Lake Auto & Tire Centers