2019 Toyota Yaris Tire Pressure Warning Light Stays On

Resolve Persistent Tire Pressure Warning Light in 2019 Toyota Yaris

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Reviewed by
Devin Cabugcal
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 Toyota Yaris 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 Toyota Yaris 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 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 are the initial steps to diagnose a persistent tire pressure warning light on a 2019 Toyota Yaris?

When faced with a persistent tire pressure warning light on your 2019 Toyota Yaris, start by checking the tire pressure in all four tires, ensuring they are inflated to the manufacturer's recommended levels, as low pressure is a frequent culprit. Next, visually inspect each tire for any signs of damage, such as punctures or bulges, which could lead to air loss. If the tires appear to be in good condition, attempt to reset the tire pressure monitoring system following the instructions in your owner's manual, as this can sometimes resolve the issue. Additionally, examine the valve stems for any leaks or damage that might be affecting tire pressure. If the warning light remains illuminated, consider using a diagnostic tool to scan for fault codes related to the tire pressure monitoring system, which can provide further insight into the problem. By systematically addressing these areas, you can effectively diagnose and potentially resolve the tire pressure warning light issue on your Yaris.

What are the common problems that could cause the tire pressure warning light to stay on in a 2019 Toyota Yaris?

When the tire pressure warning light remains on in your 2019 Toyota Yaris, it’s essential to understand the common problems that could be causing this issue. One of the primary culprits is low tire pressure, which can occur due to natural air loss, punctures, or leaks. Regularly checking and maintaining the correct tire pressure is crucial for both safety and fuel efficiency. Another potential issue could be a faulty tire pressure sensor; if the sensor is malfunctioning, it may not provide accurate readings, leading to the warning light staying on. Additionally, the sensor batteries may need replacement, as they have a limited lifespan and can affect sensor performance. Calibration is also a key factor; if the sensors are not properly calibrated, they may give incorrect readings, triggering the warning light. Lastly, inspect the wiring and connections associated with the tire pressure monitoring system, as damaged wires or poor connections can also result in the light remaining illuminated. By addressing these common problems, you can ensure your vehicle operates safely and efficiently.

What should I do if the tire pressure warning light on my 2019 Toyota Yaris stays on?

When the tire pressure warning light on your 2019 Toyota Yaris remains illuminated, it is crucial to take immediate action. Ignoring this warning can lead to serious safety risks, including reduced traction, increased tire wear, and even tire blowouts while driving. Start by checking the tire pressure in all tires, including the spare, using a reliable gauge to ensure they meet the manufacturer's recommended levels. If you find any tires underinflated, inflate them promptly to the correct PSI. Additionally, inspect each tire for visible damage such as punctures or bulges, as these can compromise your safety and require professional evaluation. After addressing any pressure discrepancies or damage, resetting the tire pressure monitoring system is essential to clear the warning light. If the light persists despite your efforts, it may indicate a deeper issue with the monitoring system itself, necessitating a visit to a qualified mechanic. By taking these steps, you not only enhance your driving safety but also protect your vehicle from potential damage caused by neglecting tire maintenance.

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