2021 Ford Explorer Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2021 Ford Explorer: Causes and Solutions

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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 2021 Ford Explorer 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 2021 Ford Explorer 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 2021 Ford Explorer?

To effectively diagnose the tire pressure warning light issue in your 2021 Ford Explorer, begin with a straightforward approach by checking the tire pressure in all four tires using a reliable tire pressure gauge. Ensure that each tire is inflated to the recommended levels outlined in your vehicle'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 or bulges, which could indicate a more serious problem. If the tire pressure is correct and the tires appear undamaged, consider resetting the tire pressure monitoring system (TPMS) as it may require recalibration. Refer to your vehicle's manual for specific instructions on how to perform this reset. Additionally, inspect the TPMS sensors located on each tire to confirm they are functioning correctly and free from damage. If, after completing these steps, the warning light remains illuminated, it may be time to consult a professional mechanic or dealership for a comprehensive diagnosis and repair. By following this methodical approach, you can efficiently address the tire pressure warning light issue and maintain your vehicle's safety and performance.

What could be causing the tire pressure warning light to remain on in a 2021 Ford Explorer?

When the tire pressure warning light remains illuminated in your 2021 Ford Explorer, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is low tire pressure, which is easily checked with a tire pressure gauge. Ensure all tires are inflated to the manufacturer's recommended levels, as even a small drop can trigger the warning light. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor; these sensors can malfunction and may need replacement if they provide inaccurate readings. Additionally, the batteries in the TPMS sensors can deplete over time, leading to similar issues, so checking and replacing them might be necessary. It's also wise to inspect the wiring and connections associated with the TPMS, as any damage or loose connections can cause the light to stay on. In some cases, performing a TPMS reset can recalibrate the system and turn off the warning light, so consult your vehicle's manual for the specific reset procedure. Lastly, be mindful of extreme temperature changes, as they can affect tire pressure and lead to false alerts. By systematically addressing these potential issues, you can effectively resolve the tire pressure warning light concern in your Ford Explorer.

How urgent is it to address the tire pressure warning light on my 2021 Ford Explorer that stays on?

Addressing the tire pressure warning light on your 2021 Ford Explorer is not just a matter of convenience; it is a critical safety concern that requires immediate attention. When this light remains illuminated, it signals that your tires may be underinflated, which can severely compromise your vehicle's handling and stability. This can lead to dangerous driving conditions, increasing the likelihood of accidents or tire blowouts. Additionally, driving on underinflated tires accelerates wear and tear, resulting in uneven tire degradation that could necessitate costly replacements sooner than expected. Furthermore, maintaining proper tire pressure is essential for optimal fuel efficiency; neglecting this warning can lead to decreased gas mileage, ultimately increasing your fuel expenses. Lastly, prolonged driving with low tire pressure can cause irreversible damage to your tires, leading to expensive repairs. Therefore, it is crucial to check and adjust your tire pressure as soon as the warning light activates, ensuring your safety and the longevity of your vehicle.

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