2021 Ford Transit-350 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light on 2021 Ford Transit-350

Find Repair Location
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 Transit-350 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 Transit-350 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 2021 Ford Transit-350?

To effectively diagnose the tire pressure warning light on your 2021 Ford Transit-350, begin with the simplest step: checking the tire pressure. Use a reliable tire pressure gauge to measure the inflation levels of all four tires, ensuring they match the recommended specifications found in your owner's manual. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, and remove any debris that may be lodged in the treads. If the tire pressure is correct and the tires appear undamaged, the next step is to reset the tire pressure monitoring system (TPMS), which can often resolve false warnings. Refer to your vehicle's manual for specific reset instructions. If the warning light remains illuminated after these checks, it may be time to consult a professional mechanic who can utilize specialized diagnostic tools to identify any underlying issues. By following this methodical approach, you can efficiently address the tire pressure warning light and maintain the safety and performance of your vehicle.

What could be causing the tire pressure warning light to remain on in a 2021 Ford Transit-350?

When the tire pressure warning light remains on in your 2021 Ford Transit-350, it can be frustrating, but understanding the common problems can help you diagnose the issue. 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 slight drop can trigger the warning light. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor; these sensors can wear out over time and may need replacement. Additionally, sensor calibration issues can arise, especially after tire rotations or replacements, necessitating a recalibration to ensure accurate readings. Electrical faults within the tire pressure monitoring system can also cause persistent warnings, which may require a diagnostic tool to pinpoint the problem. Lastly, be mindful of environmental factors such as extreme temperatures or rough driving conditions, which can temporarily affect tire pressure. By systematically checking these common issues, you can often resolve the warning light concern without needing professional assistance. However, if the light remains illuminated after your checks, consulting a certified mechanic is advisable for a comprehensive diagnosis.

What immediate steps should be taken if the tire pressure warning light remains on in a 2021 Ford Transit-350?

When the tire pressure warning light remains illuminated in your 2021 Ford Transit-350, it is crucial to act promptly to ensure your safety and the vehicle's performance. Ignoring this warning can lead to dangerous driving conditions, such as reduced traction and increased risk of tire blowouts, which can result in serious accidents. Start by checking the tire pressure in all tires, including the spare, using a reliable gauge to confirm they meet the manufacturer's recommended levels. If you find any tires underinflated, inflate them immediately to avoid further complications. Additionally, inspect each tire for visible damage, as any punctures or bulges could compromise your safety and necessitate repairs or replacements. If the warning light persists after addressing the tire pressure, consult your vehicle's manual for instructions on resetting the tire pressure monitoring system. Should the light remain on despite these efforts, it is essential to seek professional assistance to diagnose any underlying issues with the monitoring system. Taking these steps not only helps maintain your vehicle's integrity but also ensures your safety on the road.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.