When to Replace Your TPMS Sensor – a Complete Guide

As you drive on a chilly morning, you may notice a warning light indicating low tire pressure. This important alert comes from your Tire Pressure Monitoring System (TPMS), and it's a signal that should not be ignored. Low pressure can lead to tire blowouts, posing a significant safety risk. However, sometimes the issue may not lie with the tires themselves, but rather with the TPMS sensor. How do you interpret these warnings? When should you consider roadside assistance, and when is it appropriate to consider replacing the TPMS sensor?

How to Identify a Faulty TPMS Sensor

Determining When to Replace a TPMS Sensor for Your Safety and Vehicle Efficiency: Here’s How:

Battery Issues: TPMS sensors rely on battery power. If your vehicle has an older battery or if it has been idle for extended periods, it could lead to sensor problems, particularly in vehicles used for stop-and-go traffic.

Sensor Malfunctions: Even if your tire pressure is within the recommended range, a malfunctioning sensor may still trigger a warning light.

Handling Differences: If you experience changes in handling, such as swerving or flat tires, without receiving a TPMS alert, it could indicate that the sensor is failing to detect critical pressure drops.

Fuel Economy Changes: An unexplained increase in fuel consumption may suggest driving on under-inflated tires without receiving an alert from a potentially faulty sensor.

Post Tire Replacement: If the TPMS light illuminates after getting new tires, it could be due to improper tire installation, sensor damage during the process, or the need for sensor resetting.

Consequences of Not Replacing a Faulty TPMS Sensor

Failure to replace a faulty TPMS sensor can result in several negative outcomes:

1. Increased risk of tire failure while driving.

2. Reduced fuel efficiency due to undetected under-inflated tires.

3. Accelerated tire wear and tear, leading to premature replacement requirements.

TPMS Sensor Lifespan and Replacement Costs

TPMS sensors typically have a lifespan of 5 to 10 years. However, it's important to note that their batteries are not replaceable. Therefore, when a sensor's battery reaches the end of its life, the entire unit must be replaced. The cost of replacing all four TPMS sensors can range from $200 to $800, depending on the make and model of your vehicle.

Your Guide to Replacing TPMS Sensors

Replacing your vehicle's TPMS sensors doesn't need to be daunting. If you observe any of the warning signs discussed earlier, it's advisable to consider TPMS sensor replacement. Refer to your vehicle's manual for detailed instructions or enlist the assistance of a professional to guarantee correct installation and optimal performance.

Keep in mind that driving with a malfunctioning TPMS sensor poses risks, so it’s wise to address the problem promptly.

Knowing when to replace the TPMS sensor is integral to maintaining your vehicle’s health and your safety on the road. Keep an eye out for the signs of a bad tpms sensor and take action accordingly. Regular checks and maintenance are the best defenses against unexpected tire-related incidents.