Acura TSX Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your Acura TSX and How to Resolve Them

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Reviewed by
Aisha
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 Acura TSX 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 Acura TSX 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 of a TPMS control module failure are failing to alert the driver of underinflation or overinflation of one or more tires, failure to communicate with the body control module or TPMS sensors, or erroneously reporting incorrect tire pressure.

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.

Troubleshooting Tire Pressure Warning Light in an Acura TSX

When addressing the tire pressure warning light in your Acura TSX, begin by checking the tire pressure in all four tires to ensure they are inflated to the manufacturer's recommended levels. This is a straightforward step that can often resolve the issue, as the warning light may activate if any tire is significantly under or over-inflated. If the tire pressure is correct, inspect the tires for any visible damage or signs of a slow leak, as these can also trigger the warning light. Should the light remain illuminated after confirming proper tire pressure, proceed to reset the Tire Pressure Monitoring System (TPMS). This can typically be done by locating the TPMS reset button under the steering wheel, holding it until the light blinks three times, and then starting the vehicle to allow the system to recalibrate. If you are unable to locate the reset button or if the light persists, consulting your owner's manual can provide specific instructions tailored to your model. By following this diagnostic approach, you can effectively troubleshoot the tire pressure warning light and maintain the safety and performance of your Acura TSX.

What to Do When the Tire Pressure Warning Light Stays On in an Acura TSX?

When the tire pressure warning light stays on in your Acura TSX, it can indicate several common issues that may require your attention. One frequent problem is simply low tire pressure, which can occur due to temperature changes or slow leaks. It's essential to regularly check the air pressure in all tires, including the spare, to ensure they are inflated to the manufacturer's recommended levels. Another potential issue could be a malfunctioning Tire Pressure Monitoring System (TPMS) sensor, which may fail to accurately read tire pressure or could be damaged. Additionally, if you've recently changed tires or had them rotated, the TPMS may need to be recalibrated to recognize the new tire positions. In some cases, the warning light may also illuminate due to a dead battery in the TPMS sensor, particularly if the vehicle is older. If you've addressed the tire pressure and reset the system but the light remains on, it may be time to consult a professional for a thorough inspection of the TPMS and related components. Understanding these common problems can help you effectively troubleshoot and resolve the issue, ensuring your Acura TSX remains safe and roadworthy.

Why is the Tire Pressure Warning Light Staying On in an Acura TSX?

When the tire pressure warning light remains illuminated in your Acura TSX, it is crucial to address the issue without delay. Ignoring this warning can lead to unsafe driving conditions, as underinflated tires can significantly affect handling, braking, and overall vehicle stability. Additionally, prolonged neglect may result in uneven tire wear, which can necessitate costly replacements and impact fuel efficiency. Start by checking the tire pressure to ensure it meets the manufacturer's specifications; if the pressure is correct and the light persists, a reset of the tire pressure monitoring system (TPMS) may be required. Furthermore, inspect the TPMS sensors for any faults or damage, as a malfunctioning sensor can also trigger the warning light. Regular maintenance and prompt attention to tire pressure issues not only enhance your safety on the road but also prolong the life of your tires and vehicle.

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Acura TSX Tire Pressure Warning Light: Causes & Solutions