2015 Ford Flex Tire Pressure Warning Light Stays On

Resolve the Tire Pressure Warning Light in Your 2015 Ford Flex

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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 2015 Ford Flex 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 2015 Ford Flex 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 on my 2015 Ford Flex?

When diagnosing the tire pressure warning light issue on your 2015 Ford Flex, it's crucial to take a methodical approach that starts with the simplest solutions. Begin by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring they are inflated to the levels specified in your vehicle's manual. If the pressure is correct, inspect the tires for any visible damage, such as punctures, cuts, or bulges, which could compromise their integrity. Following this, attempt to reset the tire pressure monitoring system, as this can often resolve false alerts. Additionally, examine the valve stems for any signs of leaks or damage, as faulty valve stems can disrupt the monitoring system's functionality. If these initial steps do not rectify the issue, it may be necessary to seek assistance from a professional mechanic who can provide a comprehensive diagnosis and repair. By following this structured approach, you can effectively troubleshoot the tire pressure warning light and maintain the safety and performance of your vehicle.

What are the common causes for the tire pressure warning light to remain on in a 2015 Ford Flex?

When the tire pressure warning light remains on in a 2015 Ford Flex, it can be frustrating for DIYers looking to resolve the issue. One of the primary culprits is low tire pressure, which can occur due to natural air loss, temperature fluctuations, or a slow leak. Regularly checking and maintaining the correct tire pressure is essential for both safety and performance. Another potential issue could be a faulty tire pressure sensor; if the sensor is malfunctioning, it may not provide accurate readings, causing the warning light to stay illuminated. Additionally, the batteries in these sensors can deplete over time, leading to communication failures with the vehicle's system. Wiring problems or a malfunction within the tire pressure monitoring system can also trigger the warning light. Lastly, if you've recently had tire service, such as rotations or replacements, the sensors may require recalibration to function correctly. Addressing these common problems can help ensure that your vehicle operates safely and efficiently. If the warning light persists despite your efforts, consulting a qualified mechanic is advisable for a thorough inspection and resolution.

How urgent is it to address the tire pressure warning light that stays on in a 2015 Ford Flex?

When the tire pressure warning light remains illuminated in your 2015 Ford Flex, it is crucial to take immediate action. Ignoring this warning can lead to serious safety hazards, as low tire pressure significantly compromises your vehicle's handling and braking capabilities, increasing the likelihood of accidents. Additionally, driving on underinflated tires accelerates uneven wear, which not only shortens the lifespan of your tires but also raises the risk of a blowout, potentially resulting in costly repairs or dangerous situations on the road. Furthermore, maintaining proper tire pressure is essential for optimal fuel efficiency; neglecting this can lead to decreased gas mileage, impacting your overall driving costs. Therefore, it is vital to regularly check your tire pressure, inflate your tires to the recommended levels found in your owner's manual or on the driver's side door jamb, and ensure that any issues with the tire pressure monitoring system are resolved promptly. Taking these steps will help ensure your safety and the longevity of your vehicle.

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