2019 Mazda 6 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2019 Mazda 6

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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 2019 Mazda 6 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 Mazda 6 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 Mazda 6?

To effectively diagnose the tire pressure warning light issue in your 2019 Mazda 6, begin with a straightforward approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring they are inflated to the levels recommended in your vehicle's manual. This initial step can often resolve the warning light if the pressure is simply low. Next, conduct a visual inspection of each tire for any visible damage, such as punctures or foreign objects that may be causing a leak. If the tires appear to be in good condition, consider resetting the tire pressure monitoring system (TPMS) as outlined in your owner's manual, as this can sometimes clear false warnings. If the light persists, it may indicate a malfunctioning sensor, which would require professional inspection or replacement. Should these steps not yield results, visiting a mechanic or a Mazda dealership for a comprehensive diagnosis is advisable to ensure your vehicle's safety and performance. By following this methodical approach, you can efficiently identify and address the issue with your tire pressure warning light.

What could be causing the tire pressure warning light to stay on in a 2019 Mazda 6?

When the tire pressure warning light stays on in your 2019 Mazda 6, it’s crucial to identify the underlying issues to ensure your safety and vehicle performance. The most common reason for this warning light is low tire pressure, which can be easily checked with a tire pressure gauge. If the pressure is within the recommended range but the light remains illuminated, the problem may lie with a faulty tire pressure sensor that could require replacement. Additionally, some sensors are powered by batteries that can deplete over time, leading to false warnings even when tire pressure is adequate. Calibration issues may also occur, necessitating a reset of the tire pressure monitoring system to restore accurate readings. Furthermore, external factors such as significant temperature changes, rough driving conditions, or visible tire damage should be examined, as these can also trigger the warning light. By methodically investigating these common problems, you can effectively troubleshoot and resolve the tire pressure warning light issue in your Mazda 6, ensuring a safer driving experience.

How urgent is it to address the tire pressure warning light that stays on in a 2019 Mazda 6?

Addressing the tire pressure warning light in your 2019 Mazda 6 is not just a matter of convenience; it is a critical safety concern that requires immediate attention. Ignoring this warning can lead to serious consequences, including compromised vehicle handling and braking, which significantly increases the risk of accidents, particularly in challenging driving conditions. Additionally, underinflated tires can wear unevenly, resulting in premature tire replacement and unnecessary expenses. Furthermore, maintaining proper tire pressure is essential for optimal fuel efficiency; driving with low tire pressure can lead to increased fuel consumption, ultimately costing you more over time. The risk of tire damage also escalates when driving on underinflated tires, as it can lead to blowouts that pose severe safety hazards. Overall, the performance of your vehicle—including stability, traction, and ride comfort—relies heavily on maintaining the correct tire pressure. Therefore, it is crucial to check and adjust your tire pressure promptly or consult a professional mechanic to avoid these risks and ensure your vehicle operates safely and efficiently.

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