INFINITI Q70L Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your INFINITI Q70L and How to Resolve Them

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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 INFINITI Q70L 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 INFINITI Q70L 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.

Troubleshooting Tire Pressure Warning Light in an INFINITI Q70L

When addressing the tire pressure warning light in your INFINITI Q70L, start with the simplest solution: checking the tire pressure. Ensure all tires, including the spare, are inflated to the recommended levels, as driving on under-inflated tires can lead to serious safety issues. If the tire pressure is adequate and the warning light persists, the next step is to reset the Tire Pressure Monitoring System (TPMS). This involves turning the ignition off and then back on, which can help clear any temporary faults. If the light continues to flash, it may indicate a malfunction within the TPMS itself, necessitating further investigation. Remember, regular tire maintenance is crucial and not covered under warranty, so make it a habit to check your tire pressure frequently. By following this diagnostic approach, you can effectively manage the tire pressure warning light and ensure a safer driving experience.

Troubleshooting Tire Pressure Warning Light in INFINITI Q70L

When dealing with the tire pressure warning light in your INFINITI Q70L, it's essential to understand the common problems that could be causing the alert. The most frequent issue is low tire pressure, which can occur due to natural air loss or temperature fluctuations. Always start by checking the tire pressure in all tires, including the spare, and ensure they are inflated to the specifications outlined in your owner’s manual. If the pressure is adequate, the next step is to inspect the TPMS sensors for any signs of damage or malfunction. A dead sensor battery or a faulty sensor can also trigger the warning light, so consider replacing the batteries or the sensors if necessary. Additionally, if you've recently rotated your tires or experienced significant temperature changes, the system may need a reset to recalibrate the sensors. If the warning light remains illuminated after these checks, it may indicate a more complex issue with the TPMS control module, and consulting a professional mechanic or an INFINITI service center would be advisable for further diagnosis. By following these steps, you can effectively troubleshoot the tire pressure warning light and ensure your vehicle remains safe and roadworthy.

Why is the Tire Pressure Warning Light Staying On in an INFINITI Q70L?

When the Tire Pressure Warning Light remains illuminated in your INFINITI Q70L, it is crucial to address the issue promptly to avoid potential safety risks and costly repairs. Ignoring this warning can lead to under-inflated tires, which not only compromise your vehicle's handling and braking performance but also increase the likelihood of tire blowouts. Additionally, a malfunctioning Tire Pressure Monitoring System (TPMS) sensor can lead to inaccurate readings, leaving you unaware of actual tire conditions. If the light persists after checking and adjusting tire pressures, it may indicate a need for a system reset or sensor replacement. Regularly monitoring your tire pressure and understanding the implications of the warning light can help maintain your vehicle's safety and performance, making it essential to take action as soon as you notice this alert.

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