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Why wont my tire pressure light go off after filling tires?

If your tire pressure warning light remains illuminated after you've filled your tires to the recommended pressure, there could be a few reasons why. The most common causes include a sensor malfunction, a slow air leak, or the system not properly resetting after you've added air to the tires.


Sensor Malfunction


Your vehicle's tire pressure monitoring system (TPMS) uses sensors in each wheel to detect when the air pressure drops below a certain threshold. If one of these sensors is malfunctioning, it may continue to trigger the warning light even after you've properly inflated the tires. This could be due to a faulty sensor or an issue with the TPMS wiring in that wheel well.


Slow Air Leak


Even if you've filled your tires to the correct PSI, a slow air leak can cause the pressure to drop again over time, triggering the warning light. This could be due to a puncture, a problem with the valve stem, or damage to the tire itself. Carefully inspecting your tires for any signs of damage and using a tire sealant may help resolve the issue.


System Reset Required


After filling your tires, your vehicle's TPMS may need to be manually reset in order to turn off the warning light. This is often done by pressing a specific button or sequence of buttons on your dashboard. Consult your owner's manual for the proper reset procedure for your make and model.



  • Check for any sensor malfunctions or wiring issues in the TPMS

  • Inspect tires for slow leaks or other damage

  • Reset the TPMS system after filling tires to the proper pressure


If the tire pressure warning light remains on after trying these troubleshooting steps, it's best to have your vehicle inspected by a professional mechanic to identify and resolve the underlying issue.

How long does it take for tire pressure light to go off after filling?


Once your tires are at the appropriate pressure, the light may go off on its own. If it doesn't go off right away, driving at 50 mph for about 10 minutes should help the tire pressure sensor reset.



How long does it take for tire pressure sensor to go off?


Once you have properly inflated your tires, the tire pressure light should automatically go off. However, if it doesn't, there are a few different things that you can try: Drive at or above 50 mph to reset the sensor for 10 minutes. This causes your sensor to reset the next time you turn on your car.



Can I reset my TPMS myself?


Hold the TPMS reset button until the tire pressure light blinks three times, then release it. Start the car and wait about 20 minutes for the sensor to refresh. You will find the tire pressure monitor reset button under the steering wheel. Refer to your vehicle's owner's manual if you can't find it.



Why is my tire pressure warning still on after pumping tires?


If the light remains on after adjusting the tire to the proper PSI, you may need to repair your tire, have your TPMS inspected, or try one of the following: Go for a 10-minute drive. Get up to 50 MPH, if possible.



What happens if you pump too much air in a tire?


It can cause uneven wearing through the centre of the tyre's tread, and can even effect handling. As a result of this damage, the inflated tyres will lose traction, less successfully react to hazards on the road, and make the car less pleasant to drive.



Why wont my tire light go off after filling tires?


If you've added air but the air pressure warning light stays on, there's a problem with your Tire Pressure Monitoring System or you have a slow leak... Quick Tip: If the TPMS warning light comes back on after you've filled the tire with air, recheck the tire to make sure it is inflated to the proper air pressure.



How do I know if my tire pressure sensor is messed up?


Sensor Malfunctions: If your tire pressure is within the recommended range, but the sensor triggers a warning light, it may be malfunctioning. Handling Differences: Should you notice handling changes like swerving or flat tires without a TPMS alert, the sensor might be failing to detect these crucial pressure drops.



Why is my TPMS light on when my tires are full?


If you've inflated your tires to the proper air pressure, but the warning light stays on, you may have a leak or there's a problem with the TPMS in one or more of your tires. It's simple enough to check if there's a leak in a tire. Just use your tire gauge to recheck the air pressure in all your tires.



Why is my tire sensor light staying on?


When the TPMS light comes on – and stays on – at least one of your tires is at a low pressure level. Check the pressure of all of the tires with a gauge and determine the cause of pressure loss and add air or service the tire(s) as appropriate.



Why is my tire pressure light still on after putting air in my tires?


The causes can be a malfunction, or the weather changes. Other reasons why your TPMS light may still be blinking is because your tire may be damaged, or you might have gotten a recent tire replacement. Overall, the reasons can be vast, which is why it is best to take your car to a technician for professional diagnosis.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.