2019 Ram ProMaster 1500 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2019 Ram ProMaster 1500

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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 2019 Ram ProMaster 1500 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 2019 Ram ProMaster 1500 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 2019 Ram ProMaster 1500?

To effectively diagnose the tire pressure warning light issue in your 2019 Ram ProMaster 1500, begin with a systematic 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 that the readings align with the recommended PSI found in your owner's manual or on the driver's side door jamb sticker. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, which could indicate a loss of pressure. Following this, look for potential leaks by examining the valve stems, tire bead, and tread area; a mixture of soap and water can help reveal leaks, as bubbles will form where air escapes. If everything appears normal, consider resetting the tire pressure monitoring system (TPMS) according to the instructions in your owner's manual, as this can sometimes resolve false warnings. However, if the warning light remains illuminated despite these efforts, it may be prudent to consult a mechanic or dealership for a professional diagnosis and repair, ensuring your vehicle remains safe and roadworthy.

What could cause the tire pressure warning light to stay on in a 2019 Ram ProMaster 1500?

When the tire pressure warning light stays on in your 2019 Ram ProMaster 1500, it’s crucial to identify the underlying issues that may be causing this alert. The most frequent reason is low tire pressure, which can be easily remedied by checking and inflating your tires to the recommended levels. If the tire pressure is adequate, consider the possibility of a faulty tire pressure sensor, which may need replacement to ensure accurate monitoring. Additionally, the tire pressure monitoring system might require recalibration; this process can typically be performed by following the manufacturer’s instructions found in your vehicle’s manual. Electrical issues, such as damaged wiring or connections within the system, can also lead to the warning light remaining illuminated, so a thorough inspection is advisable. Lastly, if the tire pressure monitoring system itself is malfunctioning, diagnosing and repairing it may be necessary to resolve the issue. By systematically addressing these common problems, you can effectively troubleshoot and turn off the persistent tire pressure warning light in your ProMaster 1500.

What immediate actions should be taken if the tire pressure warning light remains on in a 2019 Ram ProMaster 1500?

When the tire pressure warning light remains illuminated in your 2019 Ram ProMaster 1500, it is crucial to act promptly to ensure your safety and the vehicle's performance. Ignoring this warning can lead to dangerous driving conditions, including reduced traction and increased tire wear, which may ultimately result in a blowout. 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 to the correct levels using an air compressor or a gas station air pump. Additionally, inspect each tire for visible damage, such as punctures or bulges, as these can compromise your safety on the road. 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 despite these efforts, it is essential to consult a qualified mechanic, as there may be a deeper issue with the monitoring system that requires professional attention. Taking these steps not only enhances your vehicle's performance but also safeguards your well-being while driving.

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