Genesis G90 Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your Genesis G90 and How to Resolve Them

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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 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 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.

Troubleshooting Tire Pressure Warning Light in a Genesis G90

When troubleshooting the tire pressure warning light in your Genesis G90, it's crucial to follow a methodical diagnostic approach to ensure effective resolution. Begin by checking the tire pressure of all four tires, making sure they are inflated to the recommended levels specified by the manufacturer, as this is often the most straightforward fix for the warning light. If the tire pressures are correct and the warning light remains illuminated, the next step is to reset the Tire Pressure Monitoring System (TPMS). This process typically involves either pressing a reset button on the dashboard or navigating through the vehicle's menu, as detailed in your owner's manual. If the warning light continues to persist after these actions, it may indicate a malfunctioning sensor, which would require professional attention at a Genesis dealership for further diagnosis. Additionally, if the warning light does not turn off immediately after inflating the tires, consider rescanning the system according to the procedures outlined in the manual, as this can help the vehicle's computer recognize the updated tire pressures. Regularly maintaining and checking your tire pressure is essential for optimal vehicle performance and safety, even when the warning light is not activated. By adhering to this structured approach, you can effectively troubleshoot and resolve issues related to the tire pressure warning light in your Genesis G90.

What to Check When the Tire Pressure Warning Light Stays On in a Genesis G90?

When the tire pressure warning light stays on in your Genesis G90, it’s crucial to take a methodical approach to identify and resolve the issue. Start by checking the tire pressures against the recommended levels found on the driver’s side door jamb; proper inflation is key to safe driving. If the pressures are correct, inspect the tires for any visible damage, such as cuts, punctures, or bulges, which could compromise their performance. If the tires appear intact, try resetting the Tire Pressure Monitoring System (TPMS), as this can sometimes eliminate false alerts. Additionally, keep in mind that seasonal temperature changes can affect tire pressure, potentially triggering the warning light. If, after these steps, the light remains illuminated, it may indicate a deeper issue that necessitates professional assistance to ensure your vehicle's safety and functionality.

Why is the Tire Pressure Warning Light Staying On in a Genesis G90?

When the Tire Pressure Warning Light remains illuminated in your Genesis G90, it is crucial to address the issue promptly to ensure your safety and the longevity of your vehicle. Ignoring this warning can lead to serious consequences, such as reduced vehicle handling, increased tire wear, and even tire blowouts, which pose significant safety risks on the road. Start by visually inspecting each tire for signs of leaks or damage, as a punctured tire can quickly lose air pressure. Next, check the tire pressure using a reliable gauge to confirm that all tires are inflated to the manufacturer’s recommended levels. If you find that the tires are underinflated, inflate them accordingly and monitor the light to see if it turns off. Additionally, consider inspecting the Tire Pressure Monitoring System (TPMS) for any malfunctions, as a faulty sensor can also trigger the warning light. By taking these steps, you can effectively manage the situation and maintain your vehicle's performance and safety.

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