2020 Genesis G90 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 Genesis G90: Causes and Solutions

Find Repair Location
Reviewed by
Andrew Hajjar
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 G90 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 G90 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 2020 Genesis G90?

To effectively diagnose the tire pressure warning light issue on your 2020 Genesis G90, 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 that the readings align with the recommended levels found in your owner's manual. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures or bulges, and look for any foreign objects that may be lodged in the tread. If the tire pressure appears normal and the tires are in good condition, attempt to reset the tire pressure monitoring system as outlined in your manual, as this can sometimes resolve temporary issues. After resetting, take the vehicle for a short drive; this can help recalibrate the system. If the warning light remains illuminated after these steps, it may be time to consult a mechanic or authorized service center for a more detailed diagnosis and repair. By following this structured approach, you can efficiently address the tire pressure warning light issue while minimizing unnecessary complications.

What could cause the tire pressure warning light to stay on in a 2020 Genesis G90?

When the tire pressure warning light stays on in a 2020 Genesis G90, it can be attributed to several common problems that are relatively easy to diagnose and address. The most frequent culprit is low tire pressure, which can occur due to natural air loss, punctures, or leaks. Regularly checking and maintaining the correct tire pressure is essential for both safety and performance. Another potential issue is a faulty tire pressure sensor; if the sensor is malfunctioning, it may not provide accurate readings, leading to the warning light remaining on. Additionally, some tire pressure monitoring systems rely on battery-operated sensors, and if these batteries are depleted, the warning light may illuminate as well. Lastly, problems with the wiring or the monitoring system itself can also cause the light to stay on. By understanding these common issues, DIYers can take proactive steps to troubleshoot and resolve the tire pressure warning light concern in their Genesis G90, ensuring a safer driving experience.

What should I do if the tire pressure warning light on my 2020 Genesis G90 stays on?

When the tire pressure warning light on your 2020 Genesis G90 stays illuminated, it is essential to act quickly to ensure your safety and prevent potential damage to your vehicle. Neglecting this warning can lead to dangerous driving conditions, such as decreased traction and increased tire wear, which may ultimately result in a tire blowout or other serious incidents. Begin by checking the tire pressure of all four tires using a reliable gauge, making sure they are inflated to the recommended levels specified in your owner's manual. If you find any tires are underinflated, inflate them to the correct pressure to help turn off the warning light. Additionally, inspect each tire for visible damage, such as punctures or bulges, as these issues can compromise tire safety and performance. After making the necessary adjustments, you may need to reset the tire pressure monitoring system, which is usually done through your vehicle's settings menu. If the warning light remains on despite these efforts, it is wise to seek assistance from a professional mechanic or an authorized Genesis service center to diagnose any underlying problems with the monitoring system. By taking these proactive steps, you not only enhance your driving safety but also contribute to the longevity of your tires and overall vehicle health.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.