What Does TPMS Mean?
At Stoiched Automotive, we frequently get questions about dashboard warning lights and what they mean. As automotive technology continues to develop and progress, it’s totally normal to be surprised by a new dashboard light that you haven’t seen before. Our technicians are happy to take the time to speak to you if you’re seeking clarification about a new or confusing signal in your car. One of the more recent additions to car tech is TPMS. In this article, we will explain what TPMS is, and what it means if your car’s TPMS light goes on.
What Is Tpms?
Tire Pressure Monitoring System (TPMS) is a critical safety feature in modern vehicles. It monitors the air pressure inside pneumatic tires on various types of vehicles. TPMS will alert you when one of your tire’s pressure falls significantly below the manufacturer’s recommended level. This can help you avoid poor fuel economy, decreased tire life, and even tire blowouts due to under-inflation.
What Does a Tpms Light Mean?
The TPMS light on your dashboard illuminates when one or more of your tires are significantly under-inflated. It’s a warning sign that your tire pressure needs immediate attention to ensure safe driving conditions.
TPMS Light Turns on While Driving
If the TPMS light turns on while driving, it typically indicates a sudden drop in tire pressure. This could be due to a puncture or other issues affecting tire pressure. It’s advisable to stop and check your tires as soon as it’s safe to do so.
TPMS Keeps Turning On and Off
A TPMS that frequently turns on and off might be a sign of fluctuating tire pressure, possibly due to changes in outdoor temperatures. Consistent changes in tire pressure should be evaluated by a professional to avoid potential tire damage or failure.
TPMS Light Flashes and then Stays On
A flashing TPMS light followed by a steady light could indicate a malfunction with the TPMS itself. It might be a sensor failure or a communication problem within the system. A professional diagnostic is recommended in such cases.
Ensure Your TPMS Is Working Correctly
Regular maintenance and check-ups are important for ensuring your TPMS works correctly. This includes checking sensor batteries and ensuring the system is recalibrated after tire rotation, replacement, or pressure adjustments.
What Is an Indirect Tpms & How Does It Work?
Indirect TPMS works through the vehicle’s Antilock Braking System (ABS) sensors. It measures the rate of tire revolution and sends data to the computer system. If a tire is under-inflated, its diameter decreases slightly, leading to a faster rotation speed, which triggers the TPMS warning.
Advantages of Indirect TPMS
- Cost-effective: It uses existing ABS wheel speed sensors.
- Easy maintenance: No need for separate TPMS sensors in each tire.
Disadvantages of Indirect TPMS
- Less accurate: May not detect uniformly under-inflated tires.
- Calibration requirement: Needs recalibration after tire pressure adjustments.
What Is a Direct Tpms & How Does It Work?
Direct TPMS uses sensors inside each tire to monitor pressure. These sensors send real-time tire pressure information to the driver, usually displaying the exact pressure for each tire.
Advantages of Direct TPMS
- Accuracy: Provides exact tire pressure readings.
- Immediate alerts: Quickly detect significant pressure changes.
Disadvantages of Direct TPMS
- Cost: Generally more expensive due to the need for individual sensors.
- Sensor battery life: Sensors have batteries that need replacement.
TPMS, whether direct or indirect, contributes to safer driving experiences and longer tire life. If your car’s TPMS light is giving you trouble, stop by Stoiched Automotive in Appleton, and our ASE-certified technicians will be glad to take a look at it for you, make sure your tires are at the proper pressure, and fix any underlying issues that may be plaguing your TPMS system. We are located at 2600 Cold Spring Road, just South of W Prospect Ave. Stop by today or contact us online to make an appointment.