Tire Pressure Sensor Light Flashing: What To Do

Understanding the Issue

When your tire pressure sensor light starts flashing, it’s a sign that there’s a problem with your vehicle’s tire pressure monitoring system (TPMS). This system is designed to alert you when one or more of your tires are underinflated.

Common Causes of Flashing TPMS Light

There are several common reasons why your TPMS light might be flashing:

Low Tire Pressure: The most obvious reason is that one or more of your tires are underinflated. This can happen due to a slow leak, a puncture, or simply from driving on uneven roads.

TPMS Sensor Failure: The sensors in your tires can malfunction over time. This can lead to inaccurate readings and a flashing TPMS light.

TPMS Module Issues: The TPMS module, which receives and processes data from the sensors, can also experience problems.

Battery Issues: If your car’s battery is weak or dying, it can affect the TPMS system’s performance.

Image Source: bridgestonetire.com

Checking Tire Pressure

The first step in troubleshooting a flashing TPMS light is to check the tire pressure. Use a tire pressure gauge to measure the pressure in each tire. Make sure to check the pressure when the tires are cold, as the pressure will increase slightly when the tires are warm.

Compare to the Recommended Pressure: Consult your vehicle’s owner’s manual to find the recommended tire pressure.

Adjust Pressure as Needed: If any of your tires are underinflated, add air until they reach the recommended pressure.

Troubleshooting TPMS Sensor Issues

If your tire pressure is within the recommended range but the TPMS light is still flashing, you may have a problem with one of your TPMS sensors.

What to Do When the Tire Pressure Light Is Flashing

Image Source: liveabout.com

Check for Obstructions: Make sure there are no obstructions, such as rocks or debris, that could be interfering with the sensor.

Reset TPMS: Some vehicles have a TPMS reset button. Consult your owner’s manual for instructions on how to reset the system.

Replace Faulty Sensor: If you suspect a sensor is faulty, you may need to replace it. This is a job best left to a professional mechanic.

TPMS Module Issues

If you’ve ruled out low tire pressure and sensor problems, the issue may lie with the TPMS module.

Check for Diagnostic Codes: A mechanic can use a diagnostic scanner to check for any error codes related to the TPMS system.

Repair or Replace Module: If the module is faulty, it may need to be repaired or replaced.

Battery Issues

A weak battery can sometimes affect the TPMS system.

Check Battery Voltage: Have your battery tested to see if it’s in good condition.

Replace Battery if Necessary: If your battery is weak, replace it.

Preventing TPMS Issues

To help prevent TPMS problems, follow these tips:

Check Tire Pressure Regularly: Check your tire pressure at least once a month, or more frequently if you drive long distances or in extreme weather conditions.

Maintain Proper Tire Inflation: Ensure your tires are always inflated to the recommended pressure.

Rotate Tires Regularly: Rotating your tires can help them wear evenly and extend their lifespan.

Address Tire Issues Promptly: If you notice any signs of tire damage, such as a flat tire or a slow leak, have it addressed as soon as possible.

By understanding the common causes of a flashing TPMS light and taking steps to address the issue, you can keep your tires properly inflated and ensure a safe and comfortable driving experience.

tire pressure sensor light flashing