2018 Acura TLX Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2018 Acura TLX: 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 2018 Acura TLX 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 2018 Acura TLX 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 2018 Acura TLX?

To effectively diagnose the tire pressure warning light issue on your 2018 Acura TLX, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. Ensure that each tire is inflated to the recommended levels outlined in your vehicle's manual, as improper inflation is a common cause of warning lights. Next, conduct a visual inspection of the tires for any signs of damage, such as punctures, cuts, or bulges, and look for any foreign objects that may be lodged in the tread. If the tire pressure is correct and the tires appear undamaged, consider resetting the tire pressure monitoring system, as temporary fluctuations can sometimes trigger the warning light. Follow the reset instructions provided in your owner's manual for this step. However, if the warning light remains illuminated after these checks, it may indicate a more complex issue, such as a faulty sensor. In such cases, seeking assistance from a qualified mechanic or dealership is advisable to ensure a proper diagnosis and repair, ultimately maintaining your vehicle's safety and performance on the road.

What could be causing the tire pressure warning light to stay on in a 2018 Acura TLX?

When the tire pressure warning light stays on in a 2018 Acura TLX, it’s essential to identify the underlying issues to ensure safe driving. One of the most frequent causes is low tire pressure, which can result from natural air loss or changes in temperature. Regularly checking and inflating your tires to the recommended levels can often resolve this problem. Another potential issue is a faulty tire pressure sensor; if the sensor is not functioning correctly, it may need to be replaced to restore accurate monitoring. Additionally, sensor calibration issues can occur, requiring a recalibration to ensure the sensors provide precise readings. Electrical problems within the tire pressure monitoring system can also lead to the warning light remaining illuminated, so it’s important to inspect the wiring and connections for any faults. Environmental factors, such as extreme heat or cold, can impact tire pressure, making it crucial to monitor your tires during seasonal changes. Lastly, be sure to check for any tire damage or slow leaks, as these can contribute to low pressure and trigger the warning light. By addressing these common issues, you can effectively troubleshoot the tire pressure warning light in your Acura TLX and maintain optimal driving safety.

How urgent is it to address the tire pressure warning light that stays on in a 2018 Acura TLX?

Addressing the tire pressure warning light in your 2018 Acura TLX is not just a matter of convenience; it is a critical safety issue that demands immediate attention. When this warning light remains illuminated, it signals that your tires may be underinflated, which can severely compromise your vehicle's handling and braking capabilities. This increases the likelihood of accidents, particularly in emergency situations where quick response is essential. Furthermore, driving on improperly inflated tires can lead to uneven wear, significantly shortening their lifespan and raising the risk of a blowout while on the road. Additionally, underinflated tires can negatively impact your vehicle's fuel efficiency, leading to higher fuel costs over time. Ignoring the tire pressure warning light may also indicate a malfunction in the Tire Pressure Monitoring System (TPMS), which could result in inaccurate pressure readings and further jeopardize your safety. Therefore, it is crucial to check and adjust your tire pressure according to the manufacturer's specifications or consult a professional mechanic to ensure your vehicle remains safe and efficient.

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