As with any technology, tire pressure monitoring systems [TPMS] can sometimes malfunction, leading to frustration and confusion for vehicle owners. In this post we discuss what are some common problems with TPMS? And read this post carefully to know how you can solve their problems.
Let’s find out what (TPMS) is and how it works
A TPMS is a system installed in vehicles to monitor the air pressure inside the tires. There are generally two types of TPMS:
Direct TPMS: This type uses sensors inside each tire to measure the tire pressure and sends this information to the vehicle’s central control unit.
Indirect TPMS: This system uses the vehicle’s ABS (Anti-Lock Braking System) sensor to detect changes in tire circumference, which indirectly signals a loss in tire pressure.
Regardless of type, a malfunction in either system can trigger a warning light on your dashboard, alerting you to check your tire pressure. However, it is important to recognize that the problem may be related to the TPMS rather than the actual tire pressure.
Common TPMS problems and how to fix them
1. TPMS warning light stays on
One of the most common problems with TPMS is the warning light coming on, even when the tires appear to be properly inflated.
Possible causes may be
Incorrect tire pressure: The most obvious cause is underinflated tires. Make sure all tires, including the spare, are inflated to the manufacturer’s recommended pressure.
Faulty sensors: The sensors inside the tire may be faulty. Over time, each sensor’s battery can die (usually after 5-10 years).
System reset problem: Sometimes, the system may need to be reset after tire pressure change or tire rotation.
How you solve this problem
Check Tire Pressure: Start by checking the tire pressure of all four tires using a digital tire pressure gauge. Compare the readings to the manufacturer’s recommended PSI, which can be found in the owner’s manual or on your car’s door placard.
Relearn or reset the TPMS: If the tire pressure is correct, perform a TPMS reset. This can usually be done by following these steps:
Turn the ignition key to the “ON” position (without starting the engine).
Locate the TPMS reset button (often near the steering wheel or under the dashboard).
Hold the reset button for 3-5 seconds until the TPMS light illuminates and then turns off.
Drive your vehicle a few miles to allow the system to recalibrate.
Replace the faulty sensor: If the warning light remains on even after proper tire inflation and reset, you may need to replace the faulty sensor. Take your vehicle to a professional for diagnosis and replacement.
2. TPMS light flashes for 60-90 seconds and then stays on
If the TPMS warning light comes on for a while and then stays on, it usually indicates a problem with the system, not low tire pressure.
Possible causes may be
Faulty sensors: A flashing light usually indicates a sensor problem, where one or more sensors are not communicating with the vehicle’s computer.
Dead sensor batteries: Sensor batteries can die, especially if the system is more than five years old.
You can easily solve
Check for faulty sensors: A flashing TPMS light is often an indication of a bad sensor. Use an OBD-II (Onboard Diagnostics) scanner or take your car to a mechanic to scan for error codes. The mechanic will be able to identify which sensor is failing and can recommend replacement.
Replace sensor battery or sensor: If a sensor’s battery dies, it may need to be completely replaced, as most TPMS sensors are sealed units that cannot be replaced individually. But depending on your car model, you may need to replace the entire sensor.
3. TPMS warning light turns on after tire rotation
Many vehicle owners experience the TPMS warning light coming on after rotating their tires, honestly I see it myself.
Possible reasons for this are:
Improper tire rotation: After rotating your tires, the TPMS sensors may become mismatched with their respective tires. This mismatch can cause the system to show incorrect tire pressure readings, triggering the warning light.
System Not Relearned: Some vehicles require the TPMS system to be “relearned” or recalibrated after tire rotation.
Don’t worry you solve it easily:
TPMS Relearn: Most vehicles require a TPMS relearn procedure after a tire rotation to reset the system. This process can often be done manually, using a TPMS tool or following your vehicle’s manual instructions.
Check tire pressure: After rotating the tires, verify that each tire is properly inflated to the manufacturer’s recommended PSI. Note that in some cases, incorrect tire pressure may cause the warning light to appear.
4. Incorrect tire pressure reading
If your TPMS gives incorrect readings or fluctuates in pressure, it can be frustrating and difficult to know if your tires really need air.
Possible reasons for this are
Faulty or miscalibrated sensors: Sensors inside the tire may be miscalibrated or faulty, resulting in incorrect pressure readings.
Temperature changes: Tire pressure can fluctuate with temperature changes. Cold weather can lower the pressure and warm weather can increase it.
Simple solution
Calibrate the sensor: If your TPMS is giving incorrect readings, it may need recalibration. Many professional mechanics or tire shops offer TPMS calibration services.
Check tire pressure manually: Use a manual tire pressure gauge to verify that the readings displayed by the TPMS match your actual tire pressure. If there is a significant difference, you need to replace the sensor.
Monitor Temperature Fluctuations: If inaccurate readings are related to temperature changes, remember that tire pressure can drop about 1-2 PSI for every 10°F temperature drop. Check your tire pressure regularly during extreme weather changes.
5. TPMS sensors are expensive to replace
While it is essential for your TPMS to function properly, replacing faulty sensors can be expensive, especially if they need to be replaced at the dealership.
Possible causes may be:
Old or damaged sensors: Over time, sensors can degrade and internal batteries can die.
High labor cost: The process of replacing the TPMS sensor may require removing and deflating the tires, which can result in high labor costs.
How you can easily solve:
Aftermarket sensors: You don’t always have to buy OEM (original equipment manufacturer) sensors. Many aftermarket TPMS sensors are available at low cost and can be programmed to work with your vehicle’s system.
Shop around for discounts: If you need to replace multiple sensors, call several repair shops or tire dealerships to compare prices and find the best deal.
So especially these 5 common problems are more common. But don’t worry you can easily solve it if you follow these tips properly.
Why TPMS maintenance is important to you
Maintaining your Tire Pressure Monitoring System (TPMS) isn’t just about keeping the warning lights off—it plays an important role in ensuring your vehicle’s safety, performance, and longevity, as well.
1. Enhanced Security 🚗💨
The primary function of a TPMS is to warn you of under-inflated tires, which is an important safety concern. Driving on tires with low air pressure can be dangerous.
Especially when a tire is under-inflated, it generates more heat, increasing the chance of a tire blowout. It can cause serious accidents.
Also, low pressure tires don’t respond as effectively to braking, which can increase stopping distances in an emergency.
Regular TPMS maintenance ensures that you are always alert to low tire pressure before it becomes a safety issue.
2. Improved fuel efficiency ⛽🔋
Tire pressure has a direct impact on fuel efficiency. Underinflated tires increase rolling resistance, which means your engine has to work harder to move the car. This leads to high fuel consumption.
3. Prolonged tire life ⏳👢
Proper tire inflation is critical to the longevity of your tires. When tires are underinflated, they wear unevenly and more quickly, especially on the edges. This reduces their lifespan and can lead to premature tire replacement.
4. Good handling and performance 🚙⚡
Properly inflated tires ensure that your vehicle handles as it should. Under-inflated tires can cause your car to pull to one side or feel sluggish, affecting your steering and overall driving experience.
Conclusion
In conclusion, tire pressure monitoring systems are crucial to the safety and efficiency of modern vehicles. Although TPMS problems are common, they are often easy to diagnose and fix with a few simple steps. Whether you’re dealing with a warning light that won’t turn off, incorrect readings, or a faulty sensor, understanding possible causes and solutions can save you time and money.