2020 Genesis G80 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 Genesis G80: Causes and Solutions

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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 2020 Genesis G80 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 2020 Genesis G80 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 2020 Genesis G80?

To effectively diagnose the tire pressure warning light issue on your 2020 Genesis G80, begin with the simplest solutions before progressing to more complex diagnostics. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring they are inflated to the levels specified in your owner's manual. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures or foreign objects lodged in the tread. If the tire pressure appears correct and no visible damage is found, attempt to reset the tire pressure monitoring system as outlined in your manual, as this can sometimes resolve temporary issues. After resetting, take your vehicle for a short drive; this can help recalibrate the system. If the warning light remains illuminated despite these efforts, it may indicate a more serious underlying problem, and visiting a qualified mechanic or service center for a comprehensive inspection would be the next advisable step. By following this structured approach, you can efficiently address the tire pressure warning light issue and ensure your vehicle's safety and performance.

What could be causing the tire pressure warning light to stay on in a 2020 Genesis G80?

When the tire pressure warning light stays on in a 2020 Genesis G80, it can indicate several underlying issues that DIY enthusiasts should consider. The most common reason is low tire pressure, which can easily be checked and corrected by inflating the tires to the recommended levels. If the tire pressure is adequate, the problem may stem from a faulty tire pressure sensor that might need replacement. Additionally, sensor calibration issues can occur, requiring a recalibration to ensure accurate readings. Electrical faults within the tire pressure monitoring system can also cause the warning light to remain illuminated, and while diagnosing these issues may be more complex, addressing them is crucial for the system's proper functionality. Environmental factors, such as extreme temperature changes or driving over rough terrain, can temporarily affect tire pressure readings, so it’s advisable to check the pressure and reset the system if necessary. If these troubleshooting steps do not resolve the warning light, seeking assistance from a qualified mechanic is recommended to diagnose and rectify any persistent issues.

What should I do if the tire pressure warning light on my 2020 Genesis G80 stays on?

When the tire pressure warning light on your 2020 Genesis G80 remains illuminated, it is crucial to act swiftly to avoid serious safety risks and potential damage to your vehicle. Ignoring this warning can lead to uneven tire wear, reduced fuel efficiency, and compromised handling, which may increase the likelihood of a tire blowout while driving. Start by checking the tire pressure in all tires, including the spare, using a reliable gauge to ensure they meet the manufacturer's specifications. If you find any tires are not properly inflated, adjust them accordingly, as maintaining the correct pressure is vital for safe driving and optimal vehicle performance. Additionally, inspect your tires for any visible damage, such as punctures or bulges, which could necessitate repair or replacement. After making these adjustments, you may need to reset the Tire Pressure Monitoring System (TPMS) to clear the warning light. If the light persists despite your efforts, it is essential to consult a qualified mechanic or dealership to diagnose and resolve any underlying issues. By addressing the tire pressure warning light promptly, you not only enhance your safety on the road but also protect your vehicle from potential long-term damage.

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