2021 Hyundai Accent Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2021 Hyundai Accent

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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 Hyundai Accent 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 Hyundai Accent 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 of a TPMS control module failure are failing to alert the driver of underinflation or overinflation of one or more tires, failure to communicate with the body control module or TPMS sensors, or erroneously reporting incorrect tire pressure.

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 Hyundai Accent?

To effectively diagnose the tire pressure warning light issue on your 2021 Hyundai Accent, begin with a straightforward approach that prioritizes simple solutions before delving into more complex diagnostics. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring that the readings align with the recommended PSI found in your owner's manual or on the driver's side door jamb. Next, inspect each tire for any visible damage, such as punctures or bulges, which could indicate a leak or other issues affecting pressure. If you find any tires underinflated, add air until they reach the correct levels, or release air from overinflated tires as needed. After adjusting the tire pressures, consult your owner's manual to see if a manual reset of the tire pressure monitoring system (TPMS) is required, as this step is crucial for the system to accurately reflect the new pressures. Additionally, remember to check the spare tire, as low pressure in this tire can also trigger the warning light. If the warning light remains illuminated despite these efforts, it may indicate a more serious problem with the TPMS sensors or system, at which point visiting a mechanic or dealership for professional diagnosis and repair is advisable. By following this methodical approach, you can efficiently address the tire pressure warning light issue and ensure your vehicle's safety on the road.

What could cause the tire pressure warning light to stay on in a 2021 Hyundai Accent?

When the tire pressure warning light remains on in your 2021 Hyundai Accent, 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 drop can trigger the warning light. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor; these sensors can wear out over time and may need replacement. Additionally, sensor calibration issues can arise, especially if tires have been recently changed or rotated, necessitating a recalibration to ensure accurate readings. Electrical faults within the tire pressure monitoring system can also cause the light to stay on, which may require a diagnostic tool to pinpoint the problem. Lastly, check for any obstructions or dirt around the sensors, as these can interfere with their operation. By systematically addressing these potential issues, you can effectively troubleshoot and resolve the persistent tire pressure warning light in your vehicle.

How urgent is it to address the tire pressure warning light that stays on in a 2021 Hyundai Accent?

Addressing the tire pressure warning light in your 2021 Hyundai Accent is not just a matter of convenience; it is a critical safety issue that requires immediate attention. When this warning 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 emergency situations where quick response times are essential. Furthermore, driving on underinflated tires can lead to uneven wear, resulting in the need for costly tire replacements sooner than expected. Additionally, low tire pressure can negatively impact your vehicle's fuel efficiency, leading to increased fuel costs over time. Ignoring this warning can also result in tire damage, which may culminate in a dangerous 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, ensuring both your safety and the longevity of your vehicle.

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