2018 Honda Pilot Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2018 Honda Pilot: 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 Honda Pilot 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 Honda Pilot 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 are the initial steps to diagnose a tire pressure warning light that stays on in a 2018 Honda Pilot?

When faced with a tire pressure warning light that remains illuminated in your 2018 Honda Pilot, it's essential to adopt a systematic diagnostic approach. Begin by checking the tire pressure in all four tires, including the spare, using a reliable tire pressure gauge to ensure they meet the manufacturer's recommended PSI levels. This simple step can often resolve the issue if the tires are under-inflated. Next, visually inspect each tire for any signs of damage, such as punctures or bulges, which could indicate a loss of pressure. If the tires appear to be in good condition, proceed to reset the tire pressure monitoring system, as this can sometimes clear false alerts. Additionally, examine the valve stems for any leaks or damage, as faulty stems can also contribute to pressure loss. If these initial steps do not resolve the warning light issue, it may be time to consult a mechanic or dealership for a professional diagnosis, ensuring that any underlying problems are addressed effectively. By following this methodical approach, you can efficiently troubleshoot the tire pressure warning light and maintain the safety and performance of your vehicle.

What could be causing the tire pressure warning light to remain on in a 2018 Honda Pilot?

When the tire pressure warning light remains on in your 2018 Honda Pilot, it can be frustrating, but understanding the common problems can help you diagnose the issue. One of the primary culprits is low tire pressure, which is easily checked with a tire pressure gauge. Ensure all tires are inflated to the manufacturer's recommended levels, as even a slight deficiency can trigger the warning light. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor. These sensors can malfunction, leading to incorrect readings, and may require replacement. Additionally, the sensor batteries can deplete over time, necessitating a battery change to restore functionality. Calibration of the tire pressure monitoring system (TPMS) is another factor; if the system is out of sync, it may need recalibration to provide accurate readings. Furthermore, interference from electronic devices or issues with wiring and connections can disrupt the sensor's communication with the vehicle, causing the light to stay on. By systematically checking these areas, you can effectively troubleshoot and resolve the tire pressure warning light issue in your Honda Pilot.

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

Addressing the tire pressure warning light in a 2018 Honda Pilot is not just a matter of convenience; it is a critical safety concern that should be prioritized. When this warning light remains illuminated, it signals that the tire pressure may be below the recommended levels, which can severely impact the vehicle's handling and braking capabilities. Underinflated tires can lead to increased fuel consumption and accelerate tire wear, resulting in costly replacements. Moreover, ignoring this warning could indicate a more serious issue, such as a tire leak or puncture, which poses a significant risk of a flat tire or blowout while driving. To ensure a safe driving experience and prolong the life of your tires, it is essential to check and inflate the tires to the proper pressure as soon as possible. If the warning light continues to stay on after addressing the tire pressure, seeking professional assistance is crucial to identify any underlying problems that could compromise your vehicle's safety.

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