2019 INFINITI QX80 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2019 INFINITI QX80: Causes and Solutions

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Reviewed by
Bo Fader
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 2019 INFINITI QX80 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 2019 INFINITI QX80 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 in my 2019 INFINITI QX80?

To effectively diagnose the tire pressure warning light issue in your 2019 INFINITI QX80, begin with a thorough check of the tire pressure in all four tires, including the spare if applicable. Utilizing a tire pressure gauge, ensure that each tire is inflated to the recommended levels outlined in your owner's manual. Next, conduct a visual inspection of each tire for any signs of damage such as punctures, cuts, or bulges that could lead to air loss. If the tire pressure appears correct and no visible damage is found, consider resetting the tire pressure monitoring system (TPMS), as it may require recalibration. Refer to your vehicle's manual for specific reset instructions. Additionally, inspect the valve stems for any leaks or damage that could affect tire pressure. If, after these steps, the warning light remains illuminated, it is advisable to consult a mechanic or an authorized INFINITI service center for a comprehensive diagnosis. By following this systematic approach, you can efficiently identify and address the underlying issue with your tire pressure warning light.

What could cause the tire pressure warning light to stay on in a 2019 INFINITI QX80?

When the tire pressure warning light stays on in a 2019 INFINITI QX80, it often signals underlying issues that can be addressed through a DIY approach. Start by checking the tire pressure in all four tires, as low pressure is the most common reason for the warning light to illuminate. If the pressure is within the recommended range, inspect the tire pressure sensors for any signs of damage or malfunction, as a faulty sensor can lead to persistent warning lights. Additionally, consider recalibrating the sensors if they haven't been adjusted recently, which can help ensure accurate readings. It's also important to examine the vehicle's electrical system for any wiring problems or faulty connections that might interfere with the tire pressure monitoring system. If these troubleshooting steps do not resolve the issue, it may indicate a more complex problem, such as a malfunctioning control module, which would necessitate professional diagnosis and repair. By systematically addressing these potential issues, you can effectively manage the tire pressure warning light and maintain your vehicle's safety and performance.

How urgent is it to address the tire pressure warning light on my 2019 INFINITI QX80?

Addressing the tire pressure warning light on your 2019 INFINITI QX80 is not just a minor inconvenience; it is a critical safety concern that requires immediate attention. Ignoring this warning can lead to dangerous driving conditions, as low tire pressure significantly impacts your vehicle's handling and braking capabilities. This can increase the risk of accidents, especially in emergency situations where precise control is essential. Furthermore, neglecting to check your tire pressure can result in uneven tire wear, which not only shortens the lifespan of your tires but also leads to costly replacements sooner than necessary. Additionally, underinflated tires can severely affect your fuel efficiency, causing you to spend more at the pump over time. Therefore, it is vital to regularly monitor your tire pressure and address any warning lights promptly to ensure your safety, maintain optimal vehicle performance, and avoid unnecessary expenses. Taking these proactive steps will help you enjoy a smoother, safer driving experience while extending the life of your tires.

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