2018 Hyundai Kona Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2018 Hyundai Kona: Causes and Solutions

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Reviewed by
Andrew Hajjar
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 Hyundai Kona 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 Hyundai Kona 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 persistent tire pressure warning light on a 2018 Hyundai Kona?

To effectively diagnose a persistent tire pressure warning light on your 2018 Hyundai Kona, start by checking the tire pressure in all four tires, ensuring they are inflated to the manufacturer's recommended levels. Low tire pressure is a frequent culprit for triggering the warning light. Next, visually inspect each tire for any signs of damage, such as punctures or bulges, as these can lead to air loss. If the tires appear to be in good condition, attempt to reset the tire pressure monitoring system following the manufacturer's guidelines, as this can sometimes resolve the issue. Additionally, examine the valve stems for any leaks or damage, as faulty stems can also contribute to inaccurate pressure readings. If the warning light persists, consider using a diagnostic tool to scan for fault codes related to the tire pressure monitoring system, which can help identify any underlying issues. By systematically following these steps, you can effectively troubleshoot and potentially resolve the tire pressure warning light concern on your Kona.

What could cause the tire pressure warning light to stay on in a 2018 Hyundai Kona?

When the tire pressure warning light stays on in a 2018 Hyundai Kona, it can indicate several common problems that DIY enthusiasts should be aware of. The most frequent cause is low tire pressure, which can result from natural air loss, punctures, or leaks. Regularly checking tire pressure is essential for both safety and performance. Another issue could be a faulty tire pressure sensor; if the sensor is malfunctioning, it may not provide accurate readings, causing the warning light to remain illuminated. Additionally, the batteries in these sensors have a limited lifespan and may need replacement to ensure they function correctly. Electrical or wiring issues can also play a role, as damaged wires or blown fuses can disrupt the tire pressure monitoring system. Lastly, recalibrating the system may be necessary to ensure accurate readings. Addressing these issues promptly is crucial for maintaining vehicle safety and efficiency. If you find that troubleshooting does not resolve the problem, it may be wise to consult a professional mechanic or an authorized Hyundai service center for further assistance.

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

Addressing the tire pressure warning light in your 2018 Hyundai Kona is not just a matter of convenience; it is a critical safety issue that demands immediate attention. When this light remains illuminated, it signals that your tires may be underinflated, which can severely compromise your vehicle's handling and braking capabilities. This poses a significant risk, especially in challenging driving conditions where precise control is essential. Moreover, driving on underinflated tires accelerates uneven wear, leading to premature tire replacement, which can be costly. Additionally, low tire pressure negatively impacts fuel efficiency, resulting in higher fuel costs over time. Ignoring this warning can also lead to tire damage, increasing the risk of a blowout while driving. Therefore, it is crucial to check and adjust your tire pressure according to the manufacturer's specifications as soon as the warning light activates. If the light persists after making adjustments, seeking a professional inspection is advisable to uncover any underlying issues that could pose further risks.

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