2021 Ram 1500 Tire Pressure Warning Light Stays On

Resolve the Tire Pressure Warning Light in Your 2021 Ram 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 2021 Ram 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 2021 Ram 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 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 are the initial steps to diagnose a tire pressure warning light that stays on in a 2021 Ram 1500?

To effectively diagnose a tire pressure warning light that remains illuminated in your 2021 Ram 1500, begin with the simplest and most straightforward approach. First, manually check the tire pressure in all four tires, including the spare, using a reliable tire pressure gauge. Ensure that each tire is inflated to the manufacturer's recommended PSI levels, as incorrect pressure is a common cause of warning lights. Next, visually inspect the tires for any signs of damage, such as punctures or bulges, which could indicate a loss of air. If the tire pressure appears correct and there are no visible issues, attempt to reset the tire pressure monitoring system, as this can sometimes clear false alerts. Additionally, examine the valve stems for any leaks, as faulty stems can also lead to pressure loss. For specific troubleshooting steps related to your vehicle, consult the owner's manual, which may provide valuable insights into the tire pressure monitoring system. If these initial steps do not resolve the issue, it may be time to seek professional assistance from a mechanic or dealership for a more comprehensive diagnosis. By following this methodical approach, you can efficiently address the tire pressure warning light and ensure your vehicle's safety on the road.

What could cause the tire pressure warning light to stay on in a 2021 Ram 1500?

When the tire pressure warning light stays on in a 2021 Ram 1500, it can signal several common issues that DIYers should investigate. The most prevalent cause is low tire pressure, which can stem from slow leaks, temperature changes, or improper inflation. Regularly checking tire pressure with a reliable gauge is essential to ensure all tires are adequately inflated. Another possibility is a malfunctioning tire pressure sensor, which may fail to provide accurate readings, keeping the warning light illuminated. Additionally, the sensor's battery could be dead, hindering its ability to communicate tire pressure data effectively. Electrical issues, such as faulty wiring or blown fuses, can also interfere with the tire pressure monitoring system, leading to a persistent warning light. If you've recently rotated or replaced your tires, the system may need recalibration to reset the warning light. Addressing these potential problems promptly is crucial for maintaining the safety and performance of your vehicle, so conducting thorough checks or seeking professional assistance when needed is advisable.

What immediate actions should be taken if the tire pressure warning light remains on in a 2021 Ram 1500?

When the tire pressure warning light remains illuminated in your 2021 Ram 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, such as reduced traction and increased tire wear, which may ultimately result in a blowout or loss of control. Start by checking the tire pressure in all four tires, including the spare, using a reliable tire pressure gauge. If you find any tires are underinflated, inflate them to the manufacturer's recommended levels, which can be found in your owner's manual or on the door jamb. Additionally, inspect each tire for visible damage, such as punctures or bulges, as these can compromise your safety and require immediate attention. Once you have adjusted the tire pressure and addressed any damage, reset the tire pressure monitoring system according to your vehicle's manual. If the warning light persists, it is essential to consult a qualified mechanic, as there may be underlying issues with the monitoring system that need professional diagnosis. Taking these steps not only helps in resolving the warning light but also ensures a safer driving experience.

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