2014 Toyota Prius Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2014 Toyota Prius

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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 2014 Toyota Prius 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 2014 Toyota Prius 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.

What steps should I take to diagnose the tire pressure warning light issue on my 2014 Toyota Prius?

To effectively diagnose the tire pressure warning light issue on your 2014 Toyota Prius, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. Ensure that each tire is inflated to the levels recommended in your owner's manual, as improper inflation is a common cause of warning lights. Next, conduct a visual inspection of the tires for any signs of damage, such as punctures, cuts, or bulges, and look for any foreign objects lodged in the tread that could be affecting performance. If the tire pressure appears correct and the tires are in good condition, consider resetting the tire pressure monitoring system, as temporary fluctuations can sometimes trigger the warning light. If the light remains illuminated after these steps, it may indicate a more complex issue, such as a faulty sensor, and it would be wise to consult a mechanic or dealership for a professional diagnosis. By following this diagnostic approach, you can systematically address the issue and determine the best course of action for your vehicle.

What could cause the tire pressure warning light to stay on in a 2014 Toyota Prius?

When the tire pressure warning light remains illuminated in a 2014 Toyota Prius, it often indicates underlying issues that require attention. The most prevalent cause 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 crucial for both safety and fuel efficiency. If the tire pressure is adequate, the problem may lie with the tire pressure sensors themselves. These sensors can fail or may need their batteries replaced, as they have a limited lifespan. Additionally, a malfunctioning sensor can lead to inaccurate readings, causing the warning light to stay on. In some cases, a simple system reset of the tire pressure monitoring system can recalibrate the sensors and extinguish the warning light. If these DIY troubleshooting steps do not resolve the issue, it may be necessary to consult a professional mechanic for further diagnosis and repair. Addressing these problems promptly is essential to maintain the vehicle's performance and ensure safe driving conditions.

How urgent is it to address the tire pressure warning light that stays on in a 2014 Toyota Prius?

Addressing the tire pressure warning light in a 2014 Toyota Prius is not just a matter of convenience; it is a critical safety concern that should be prioritized. When this warning light remains illuminated, it signals that the tire pressure may be below the recommended levels, which can severely compromise the vehicle's handling and braking capabilities. Underinflated tires can lead to increased rolling resistance, resulting in diminished fuel efficiency and accelerated tire wear, ultimately costing you more in the long run. Moreover, ignoring this warning could indicate a more serious issue, such as a tire leak or puncture, which poses a significant risk of a flat tire or blowout while driving. Therefore, it is essential to check the tire pressure immediately, inflate the tires to the specified levels found in the owner's manual or on the driver's side door jamb, and inspect the tires for any visible damage. Taking these steps not only ensures your safety but also enhances the overall performance and longevity of your vehicle.

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