2019 Mazda CX-5 Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2019 Mazda CX-5: 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 2019 Mazda CX-5 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 CX-5 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 CX-5?

To effectively diagnose the tire pressure warning light issue in your 2019 Mazda CX-5, begin with a straightforward approach that prioritizes simple solutions before delving into more complex diagnostics. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring that the readings align with the recommended PSI found in your owner's manual or on the driver's side door jamb. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures or bulges, which could indicate a leak. If you find that the tire pressure is low, fill the tires to the correct level; conversely, if the pressure is too high, release some air to achieve the proper PSI. After making these adjustments, it may be necessary to reset the tire pressure monitoring system (TPMS) in your vehicle, so refer to your owner's manual for specific instructions. Finally, take your Mazda CX-5 for a short drive to allow the system to recalibrate and check if the warning light has turned off. By following this methodical approach, you can efficiently address the tire pressure warning light issue and ensure your vehicle is safe to drive.

What are the common problems that could cause the tire pressure warning light to stay on in a 2019 Mazda CX-5?

When the tire pressure warning light stays on in a 2019 Mazda CX-5, it can signal several common issues that DIYers can address. The first step is to check the tire pressure in all four tires, as low pressure is the most frequent cause of the warning light. Ensuring that each tire is inflated to the recommended levels can often resolve the issue. If the tire pressure is adequate, the next area to investigate is the tire pressure sensors; a malfunctioning sensor may need to be replaced. Additionally, some sensors have batteries that can wear out, requiring replacement to restore proper function. If the sensors are operational but the warning light persists, recalibrating them might be necessary to ensure they are accurately reading the tire pressure. In cases where these steps do not resolve the issue, there may be a malfunction within the tire pressure monitoring system itself, which could necessitate further diagnostics and repairs. By methodically addressing these potential problems, drivers can effectively manage the tire pressure warning light and ensure their vehicle remains safe and reliable on the road.

How urgent is it to address the tire pressure warning light that stays on in a 2019 Mazda CX-5?

Addressing the tire pressure warning light in your 2019 Mazda CX-5 is not just a matter of convenience; it is a critical safety concern that requires immediate attention. When this warning light remains illuminated, it signals that your tire pressure may be too low, which can severely compromise your vehicle's handling and braking capabilities. This is particularly dangerous in adverse weather conditions, where the risk of accidents increases significantly. Additionally, driving on underinflated tires can lead to uneven wear, shortening their lifespan and potentially resulting in a blowout while on the road. Beyond safety, neglecting this warning can also impact your fuel efficiency, as underinflated tires require more energy to roll, leading to increased fuel consumption and higher costs over time. Furthermore, the tire pressure monitoring system (TPMS) itself may be malfunctioning, which could prevent you from receiving alerts about other critical tire issues. Therefore, it is essential to check and adjust your tire pressure according to the manufacturer's specifications or consult a professional mechanic to ensure your vehicle remains safe and efficient.

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