2021 Kia Niro EV Tire Pressure Warning Light Stays On

Resolve the Tire Pressure Warning Light in Your 2021 Kia Niro EV

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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 2021 Kia Niro EV 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 Niro EV 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.

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 2021 Kia Niro EV?

To effectively diagnose the tire pressure warning light issue on your 2021 Kia Niro EV, begin with the simplest and most straightforward step: checking the tire pressure. Use a reliable tire pressure gauge to measure the inflation levels of all four tires, ensuring they match the recommended specifications found in your owner's manual. If the pressure is low, inflate the tires accordingly. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, and look for any foreign objects lodged in the tread that could be causing a leak. If the tires appear to be in good condition and properly inflated, 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. However, if the warning light remains illuminated after these checks, it may indicate a more serious issue with the tire pressure monitoring system itself. In this case, seeking assistance from a certified mechanic or a Kia service center is advisable for a comprehensive diagnosis and repair. By following this methodical approach, you can efficiently troubleshoot the tire pressure warning light issue and ensure your vehicle remains safe and roadworthy.

What could cause the tire pressure warning light to remain on in a 2021 Kia Niro EV?

When the tire pressure warning light remains illuminated in your 2021 Kia Niro EV, it’s essential to identify the underlying issues that may be causing this alert. The most frequent reason is low tire pressure, which can be easily checked using a tire pressure gauge. Make sure to inflate your tires to the recommended levels specified in your owner's manual. If the tire pressure is adequate, the problem might lie with a faulty tire pressure sensor, which could require replacement or recalibration by a professional. Additionally, electronic interference from devices or other sensors in the vehicle can sometimes trigger the warning light, so it's wise to keep electronic devices away from the sensors. Temperature changes can also affect tire pressure, making it crucial to check your tires regularly, especially during seasonal transitions. If these steps do not resolve the issue, it may indicate more complex problems such as faulty wiring or a malfunctioning control module, which would necessitate a visit to a qualified mechanic for a comprehensive inspection. By methodically addressing these potential causes, you can effectively troubleshoot the tire pressure warning light in your Kia Niro EV.

What immediate steps should be taken if the tire pressure warning light remains on in a 2021 Kia Niro EV?

When the tire pressure warning light remains illuminated in your 2021 Kia Niro EV, it is crucial to act promptly to ensure your safety and the vehicle's performance. Ignoring this warning can lead to serious consequences, including reduced traction, increased tire wear, and even tire blowouts, which can pose significant risks while driving. Start by checking the tire pressure in all four tires with a reliable gauge, ensuring they meet the manufacturer's recommended levels. If you find any tires are underinflated, inflate them accordingly to restore optimal pressure. Additionally, inspect each tire for visible damage, such as punctures or cuts, as these can compromise safety and require immediate repair or replacement. Once you have addressed any pressure discrepancies or damage, reset the tire pressure monitoring system as outlined in your vehicle's manual to clear the warning light. If the light persists despite these efforts, it is essential to consult a qualified mechanic or visit a Kia service center for a thorough diagnosis. Taking these steps not only enhances your driving safety but also helps maintain the longevity and efficiency of your vehicle.

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