2021 INFINITI Q50 Tire Pressure Warning Light Stays On

Troubleshooting Tire Pressure Warning Light Issues in Your 2021 INFINITI Q50: Causes and Solutions

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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 2021 INFINITI Q50 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 INFINITI Q50 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 2021 INFINITI Q50?

To effectively diagnose the tire pressure warning light issue on your 2021 INFINITI Q50, begin by checking the tire pressure in all four tires using a reliable tire pressure gauge. This initial step is crucial, as maintaining the correct PSI is essential for optimal vehicle performance and safety. Refer to the owner's manual or the sticker located on the driver's side door jamb for the recommended pressure levels. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, and look for any foreign objects that may be embedded in the tread. If you find any discrepancies in tire pressure, use an air compressor to adjust the inflation levels accordingly. After ensuring that all tires are properly inflated, you may need to reset the Tire Pressure Monitoring System (TPMS) to clear the warning light; consult your owner's manual for specific reset instructions. Finally, take your vehicle for a short drive, as the warning light may take a few moments to turn off after the adjustments have been made. By following these straightforward steps, you can effectively address the tire pressure warning light issue and ensure your INFINITI Q50 is safe and road-ready.

What could be causing the tire pressure warning light to remain on in a 2021 INFINITI Q50?

When the tire pressure warning light remains illuminated in a 2021 INFINITI Q50, it often indicates underlying issues that require attention. One of the most frequent culprits is low tire pressure, which can easily be checked using a tire pressure gauge. Ensuring that all tires are inflated to the manufacturer's recommended levels is a straightforward first step. If the pressure is adequate, the problem may lie with a faulty tire pressure sensor, which could necessitate replacement. Additionally, the sensors might require recalibration to ensure accurate readings, a task that can typically be performed at a service center. Another possibility is a leaking tire, which can be identified by inspecting for punctures or damage; repairing any leaks can resolve the warning light issue. Lastly, issues with the wiring or control module connected to the tire pressure sensors may also be at fault, requiring a more in-depth inspection. Addressing these common problems promptly is crucial for maintaining vehicle safety and performance, and while some issues can be tackled at home, others may require professional assistance for a thorough diagnosis.

How urgent is it to address the tire pressure warning light on a 2021 INFINITI Q50?

When the tire pressure warning light illuminates on your 2021 INFINITI Q50, it is essential to act swiftly to mitigate potential risks. Ignoring this warning can lead to serious safety concerns, as improper tire pressure significantly affects your vehicle's handling and braking capabilities, increasing the likelihood of accidents. Additionally, neglecting to check your tire pressure can result in uneven tire wear, which not only shortens the lifespan of your tires but also diminishes fuel efficiency, leading to higher costs at the pump. Furthermore, driving on under-inflated tires raises the risk of blowouts or flats, which can be both dangerous and expensive to repair. For optimal vehicle performance, including improved traction and steering response, maintaining the correct tire pressure is crucial. Therefore, addressing the tire pressure warning light without delay is vital for ensuring your safety, preserving your tires, and enhancing your overall driving experience.

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