Why is my tire pressure light still on after filling tires on my Acura?

If your tire pressure light remains illuminated on your Acura after you've filled your tires to the recommended pressure, there could be a few potential reasons. The most common causes include a slow air leak, a malfunctioning tire pressure monitoring system (TPMS), or the need to reset the TPMS after filling the tires.

Potential Reasons for the Tire Pressure Light Staying On

Here are some of the most common reasons why the tire pressure light may still be on after filling your tires:

• Slow Air Leak: Even if you've filled the tires to the proper pressure, there could be a slow air leak causing the pressure to drop again. This could be due to a puncture, faulty valve stem, or damage to the tire itself.


• Malfunctioning TPMS: The tire pressure monitoring system in your Acura may be faulty, causing it to incorrectly detect low tire pressure even when the tires are properly inflated. This could require a TPMS sensor replacement.li>
  
• Needing to Reset the TPMS: After filling your tires, you may need to reset the TPMS system for it to recognize the correct tire pressures. This is often a simple process of driving for a short distance or using a TPMS reset tool.

If the tire pressure light remains on after checking the tire pressure and ensuring there are no leaks, it's best to have your Acura's TPMS system inspected by a qualified mechanic to diagnose and resolve the issue.

Steps to Troubleshoot the Tire Pressure Light

Here are the steps you can take to troubleshoot the tire pressure light on your Acura:

1. Check the tire pressure in all four tires and ensure they are inflated to the recommended PSI, which can be found in your owner's manual or on the driver's side door jamb sticker.


2. Visually inspect the tires for any signs of damage, such as punctures, cracks, or bulges, that could be causing a slow air leak.


3. If the tires are properly inflated and there are no visible leaks, try resetting the TPMS system by driving for a short distance or using a TPMS reset tool.


4. If the light remains on after resetting the TPMS, have a mechanic diagnose the issue, as it may require a TPMS sensor replacement or other repair.

By following these steps, you can identify the root cause of the tire pressure light issue and take the appropriate action to resolve it.

How to reset tire light in Acura?

Turn the key to “On” (one position to the right), but don't start the car. Now hold down the “TPMS Reset” button until the flashing tire pressure light blinks three times. Start the engine and wait 20 minutes. Check your owner's manual if you have trouble finding the reset button.

Why won't my tire pressure light turn off after filling 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.

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

Your tire pressure light is still on after filling your tires likely because of a malfunctioning TPMS sensor, an incorrectly inflated spare tire, a need to manually reset the system, or a slow leak. First, use a tire pressure gauge to double-check that all four tires and the spare are at the correct PSI and inflate if necessary. If that doesn't work, you may need to manually reset the system or take it to a professional to check for a faulty sensor or a slow leak. 
This video demonstrates how to reset the tire pressure monitoring system (TPMS): 55sHondaYouTube · May 15, 2019
Initial checks

• Double-check pressure: Use a reliable tire pressure gauge to re-check each tire, including the spare, to ensure they are all inflated to the correct PSI. Temperature changes can cause pressure to drop, so re-checking is important. 
• Check for slow leaks: Look for any signs of a slow leak, such as a nail or a puncture in the tire. 
• Ensure the spare tire is inflated: Some vehicles have a sensor in the spare tire. If the spare is low, it can trigger the light even if the other tires are fine. 

This video explains why the TPMS light might be on and how to fix it: 1mSilver CymbalYouTube · Jan 20, 2020
System and sensor issues

• Manually reset the TPMS: Some vehicles require a manual reset. Check your owner's manual for the location of the reset button, which is often in the glove box or on the dashboard. 
• Allow time for the system to refresh: After filling the tires, the system may need some time and a short drive to register the new pressure. Try driving for about 10 minutes at speeds over 50 mph. 
• Consider sensor failure: If the light remains on, a sensor may be malfunctioning or has been damaged. This can happen from impacts, age, or during tire installation. 
• Contact a professional: If the problem persists, have a professional check the system for a faulty sensor or a persistent slow leak. They have the tools to diagnose the specific issue. 

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

The tire pressure light should turn off on its own within a few minutes after the tires are properly inflated. If it doesn't, it may take a 10-minute drive at or above 50 mph for the system to reset. If the light remains on after that, you may need to manually reset it or there could be an issue with the TPMS system. 
After you inflate the tires

• Automatic reset: In most cases, the light will turn off by itself within a few minutes once the correct pressure is achieved. 
• Cold weather: If the light comes on in cold weather, it may be because the air inside the tires has contracted. The light should go off within about 20 minutes of driving as the tires warm up and the pressure returns to normal. 

If the light stays on

• Drive to reset: Drive for about 10 minutes at a speed of 50 mph or higher. This can often cause the system to recalibrate and the light to turn off. 
• Manual reset: Many vehicles have a TPMS reset button, often located under the steering wheel. To use it: 
  1. Turn the key to the "On" position, but do not start the engine. 
  2. Press and hold the TPMS reset button until the light blinks three times. 
  3. Start the car and wait 20 minutes for the sensor to refresh. 
• Check the owner's manual: If you cannot find the reset button, check your owner's manual for specific instructions for your vehicle. 

If the light continues to flash

• System issue: A flashing TPMS light typically indicates a malfunction with the system itself, not just low pressure. 
• What to do: You will likely need to have the system inspected by a professional, as it could mean a faulty sensor or another problem that needs to be fixed.