2021 Kia Sedona Tire Pressure Warning Light Stays On

Resolve Persistent Tire Pressure Warning Light in 2021 Kia Sedona

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Reviewed by
Bo Fader
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 2021 Kia Sedona 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 2021 Kia Sedona 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 2021 Kia Sedona?

When faced with a tire pressure warning light that remains illuminated in your 2021 Kia Sedona, the first step is to manually check the tire pressure in all tires, including the spare. Ensure that each tire is inflated to the manufacturer's recommended levels, which can typically be found in the owner's manual or on a label inside the driver's side door. Next, inspect each tire for any visible damage such as punctures, cuts, or bulges, as these can lead to air loss and trigger the warning light. If the tire pressure is correct and no damage is evident, the next step is to reset the tire pressure monitoring system (TPMS), as it may require recalibration after adjustments. If the light persists despite these checks, it could indicate a malfunctioning tire pressure sensor, which may need professional inspection and replacement. By following this diagnostic approach, you can effectively troubleshoot the issue and ensure your vehicle remains safe and roadworthy.

What could be causing the tire pressure warning light to stay on in a 2021 Kia Sedona?

When the tire pressure warning light stays on in your 2021 Kia Sedona, it’s important to identify the underlying issues to ensure your vehicle's safety and performance. The most frequent cause is low tire pressure, which can result from natural air loss or punctures; therefore, regularly checking and inflating your tires to the recommended levels is essential. Another possibility is a faulty tire pressure sensor, which may require replacement if it’s not functioning correctly. Additionally, the sensors might need recalibration to provide accurate readings, a process that can often be done following the manufacturer’s guidelines. Electrical faults within the tire pressure monitoring system can also trigger the warning light, and these issues typically require professional inspection to diagnose. Lastly, consider external factors such as extreme temperatures or rough terrain that could affect tire pressure. By understanding these common problems, you can take proactive steps to troubleshoot the tire pressure warning light and ensure your Kia Sedona remains safe and efficient on the road.

What should I do if the tire pressure warning light stays on in my 2021 Kia Sedona?

When the tire pressure warning light remains illuminated in your 2021 Kia Sedona, it is crucial to act swiftly to avoid serious safety hazards and potential vehicle damage. Ignoring this warning can lead to compromised handling, increased tire wear, and even tire blowouts, which pose significant risks while driving. Start by checking the tire pressure in all tires, including the spare, to ensure they are inflated to the manufacturer's recommended levels. If you find any discrepancies, adjust the pressure accordingly, as proper inflation is vital for safe operation and optimal fuel efficiency. Additionally, inspect your tires for any visible damage, such as punctures or bulges, which could further exacerbate the issue. After making necessary adjustments, resetting the Tire Pressure Monitoring System (TPMS) is often required to clear the warning light. If the light persists despite your efforts, or if you suspect a deeper issue with the TPMS, seeking professional assistance is essential. Addressing these concerns promptly not only enhances your safety but also helps maintain the overall performance and longevity of your vehicle.

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