2020 Ram ProMaster City Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 Ram ProMaster City

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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 2020 Ram ProMaster City 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 2020 Ram ProMaster City 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 in my 2020 Ram ProMaster City?

To effectively diagnose the tire pressure warning light issue in your 2020 Ram ProMaster City, begin with a straightforward approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring they meet the recommended levels outlined in your owner's manual. Next, visually inspect each tire for any signs of damage, such as punctures or bulges, which could indicate a problem. If the tire pressure is correct and the tires appear undamaged, attempt to reset the tire pressure monitoring system as per the manufacturer's instructions, which may involve a specific driving procedure or using a reset button. Additionally, examine the valve stems for any leaks or damage, as these can also contribute to pressure issues. If the warning light remains illuminated after these checks, consider using a diagnostic tool to scan for fault codes related to the tire pressure monitoring system. Should the problem persist despite your efforts, it may be time to consult a certified mechanic or dealership for a comprehensive inspection and repair. By following this methodical approach, you can efficiently identify and address the tire pressure warning light issue, ensuring your vehicle's safety and performance.

What could cause the tire pressure warning light to stay on in a 2020 Ram ProMaster City?

When the tire pressure warning light stays on in a 2020 Ram ProMaster City, it signals that something may be amiss with your tires or the monitoring system. The most common issue is low tire pressure, which can easily be checked and corrected by inflating your tires to the recommended levels. If the pressure is adequate, the problem might lie with a faulty tire pressure sensor that fails to provide accurate readings. Additionally, the tire pressure monitoring system itself could be malfunctioning, requiring a reset or recalibration to function properly. Seasonal changes in temperature can also affect tire pressure, so it's important to keep an eye on your tires during extreme weather shifts. Inspecting your tires for any signs of leaks or damage is crucial, as these can lead to pressure loss and trigger the warning light. Lastly, if all else checks out, consider that electrical issues within the vehicle's system might be causing the warning light to remain illuminated, which may necessitate a professional diagnostic. Addressing these issues promptly is essential for ensuring the safety and performance of your vehicle.

What immediate steps should be taken if the tire pressure warning light remains on in a 2020 Ram ProMaster City?

When the tire pressure warning light remains illuminated in your 2020 Ram ProMaster City, it is crucial to act promptly to ensure your safety and the longevity of your vehicle. Ignoring this warning can lead to dangerous driving conditions, such as reduced traction and increased risk of tire blowouts, which can result in accidents. Start by checking the tire pressure in all four tires with a reliable gauge, ensuring they meet the manufacturer's specifications. If you find any tires are underinflated, inflate them immediately using a dependable air compressor. Additionally, inspect each tire for visible damage, as any punctures or bulges could compromise your safety and require urgent repair or replacement. Once you have addressed any pressure discrepancies or damage, reset the tire pressure monitoring system according to your owner's manual. If the warning light persists, do not delay in seeking professional assistance, as there may be a deeper issue with the monitoring system that needs expert attention. Taking these steps not only enhances your driving safety but also helps prevent costly repairs down the line.

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