2018 Kia Soul Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2018 Kia Soul for Safe Driving Conditions

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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 2018 Kia Soul 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 Kia Soul 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 Kia Soul?

To effectively diagnose the tire pressure warning light on your 2018 Kia Soul, begin by checking the tire pressure in all four tires using a reliable tire pressure gauge. Ensure that each tire is inflated to the levels recommended in your owner's manual, as incorrect pressure is a common cause of the warning light. Next, conduct a thorough visual inspection of the tires for any signs of damage, such as punctures, cuts, or bulges, and remove any debris that may be lodged in the treads. If the tire pressure is correct and the tires appear undamaged, the next step is to reset the tire pressure monitoring system (TPMS), which can often resolve minor glitches. Refer to your owner's manual for specific instructions on how to perform this reset. If the warning light remains illuminated after these steps, it may indicate a more complex issue that requires professional attention, so consider visiting a mechanic who can utilize specialized diagnostic tools to identify the underlying problem. By following this methodical approach, you can efficiently troubleshoot the tire pressure warning light and maintain your vehicle's safety and performance.

What could cause the tire pressure warning light to stay on in a 2018 Kia Soul?

When the tire pressure warning light stays on in a 2018 Kia Soul, it can signal several common issues that DIYers can troubleshoot. The most frequent cause is low tire pressure, so the first step is to check and inflate your tires to the recommended levels. If the pressure is adequate, the next possibility is a faulty tire pressure sensor, which may need replacement. Additionally, the sensors could require recalibration, a task that can often be done at home with the right tools or at a service center. Electrical faults within the tire pressure monitoring system can also trigger the warning light, which may necessitate a diagnostic check to identify the specific issue. Lastly, ensure that the sensors are clean and free from obstructions, as external interference can disrupt their functionality. By systematically addressing these potential problems, you can effectively troubleshoot the tire pressure warning light and ensure the safety and performance of your Kia Soul.

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

Addressing the tire pressure warning light that remains illuminated in your 2018 Kia Soul is not just a matter of convenience; it is a critical safety concern that requires immediate attention. Low tire pressure can severely compromise your vehicle's handling and braking capabilities, significantly increasing the risk of accidents, particularly in challenging driving conditions. Moreover, neglecting this warning can lead to uneven tire wear, which not only shortens the lifespan of your tires but also incurs additional costs for premature replacements. Additionally, underinflated tires can negatively impact your fuel efficiency, leading to higher fuel expenses over time. Lastly, the persistent warning light may indicate a malfunction within the Tire Pressure Monitoring System (TPMS), necessitating repairs that could be more costly if left unaddressed. Therefore, it is essential to check and adjust your tire pressure according to the manufacturer's specifications or consult a professional to ensure your vehicle remains safe and efficient on the road.

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