2020 Acura ILX Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2020 Acura ILX: Causes and Solutions

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Tire Leaking Air
0%
30% chance it's the
Wheel Leaking Air
0%
15% chance it's the
Tire Pressure Monitoring System
0%
15% chance it's
Something else
The most common reasons a 2020 Acura ILX tire pressure warning light stays on are a leaking tire, a wheel that no longer holds air, or a faulty tire pressure monitoring system.
  • Tire Leaking Air: A puncture, valve stem issue, or rim damage can cause a tire to leak air, leading to loss of pressure.
  • Wheel Leaking Air: A puncture or damage to the tire or rim can cause air to leak, resulting in a loss of tire pressure.
  • Tire Pressure Monitoring System: A malfunctioning tire pressure monitoring system can be caused by faulty sensors or a dead battery in the sensor units.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2020 Acura ILX tire pressure warning light stays on?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When a tire pressure monitoring sensor fails, the tire pressure monitoring system control module will recognize a loss in communication and turn on the warning lamp which indicates the failure. This is most often the case. However, the tire pressure monitoring sensor may also fail by reporting incorrect tire pressures. This could cause a flat tire to go unrecognized, or a properly inflated tire to signal a low or high tire pressure warning.

When a relearn is needed, for any reason, the TPMS warning light will illuminate, and many vehicles will display a message relating to the TPMS system being inoperative or loosing communication. It is important to keep a watchful eye on tire pressures when this system is having issues because there is no warning available for underinflation or overinflation of the tires.

Wheels offer very few symptoms, but these symptoms should never be ignored. Visible cracks on the wheels may appear, especially after hitting a large bump, Most often, this will also be accompanied by loss of air from the tire on that wheel. Also, vibration in the steering wheel is very common when the tire is out of balance, and improper wheel nuts or bolts can cause creaking and popping noises to develop. Again, there are very few symptoms, but they should not be ignored.

The only symptoms requiring diagnosis for the tire pressure monitoring system warning lamp is if the warning lamp has illuminated while the tires have correct air pressure, or if the air pressure for the tires is out of specification and the warning lamp is off. This is because the overwhelming majority of cases where the TPMS lamp illuminates is due to the change in ambient temperature.

What steps should I take to diagnose the tire pressure warning light issue on my 2020 Acura ILX?

To effectively diagnose the tire pressure warning light issue on your 2020 Acura ILX, begin with a thorough assessment of your tires. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring they are inflated to the manufacturer's recommended levels, which can typically be found in your owner's manual or on a sticker located inside the driver's side door jamb. Next, conduct a visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges that could indicate a leak or affect the tire's performance. Additionally, look for any foreign objects, like nails or screws, that may be embedded in the tire tread, as these can cause slow leaks. If the tire pressure is correct and no visible issues are found, proceed to reset the tire pressure monitoring system following the instructions in your owner's manual. However, if the warning light remains illuminated after these steps, it may indicate a more complex issue, such as a faulty sensor. In such cases, it is advisable to consult a mechanic or dealership for a comprehensive diagnosis and repair. By following this diagnostic approach, you can systematically address the tire pressure warning light issue and ensure your vehicle's safety and performance.

What are the common problems that could cause the tire pressure warning light to stay on in a 2020 Acura ILX?

When the tire pressure warning light remains illuminated in your 2020 Acura ILX, it’s essential to understand the common problems that could be causing this issue. The most frequent culprit is low tire pressure, which can occur due to a puncture, slow leak, or simply the natural loss of air over time. Regularly checking and maintaining the correct tire pressure is crucial for both safety and fuel efficiency. Another potential issue could be a faulty tire pressure sensor; if the sensor is malfunctioning, it may not accurately read the tire pressure, leading to the warning light staying on. Additionally, problems within the Tire Pressure Monitoring System (TPMS) itself, such as wiring issues or sensor calibration errors, can also trigger the warning light. Lastly, if you’ve recently replaced your vehicle’s battery, it may require a reset or recalibration of the TPMS to turn off the warning light. By systematically checking these areas, you can often identify and resolve the issue without needing professional assistance. However, if the problem persists, consulting a qualified mechanic is advisable to ensure your vehicle remains safe and reliable.

What should I do if the tire pressure warning light on my 2020 Acura ILX stays on?

If the tire pressure warning light on your 2020 Acura ILX remains illuminated, it is crucial to take immediate action to ensure your safety and the longevity of your vehicle. Ignoring this warning can lead to decreased handling, increased tire wear, and even tire blowouts, which pose significant risks while driving. Start by checking the tire pressure in all tires, including the spare, using a reliable gauge to confirm they meet the manufacturer's recommended levels. If you find any tires underinflated, inflate them to the correct PSI to prevent further complications. Additionally, inspect each tire for visible damage such as punctures or bulges, as these can compromise your safety and require professional evaluation. After making necessary adjustments, resetting the tire pressure monitoring system is often needed to clear the warning light. If the light persists despite your efforts, it is advisable to consult a certified mechanic or Acura dealership, as there may be a deeper issue with the monitoring system that requires expert attention. Taking these steps not only enhances your driving safety but also helps avoid costly repairs down the line.

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