What is TPMS on a Dodge?

In Dodge vehicles, TPMS stands for Tire Pressure Monitoring System. It automatically monitors the air pressure in each usable tire and warns you if a tire is underinflated or if a sensor fault occurs.

Most Dodges use a direct TPMS with wheel-mounted sensors that report actual tire pressures to the vehicle’s computer. Some older or nonstandard configurations may rely on an indirect TPMS that estimates pressure using ABS wheel-speed data. The system helps prevent underinflation, improve fuel economy, and extend tire life.

TPMS types in Dodge vehicles

There are two main configurations you might encounter in Dodge models: direct TPMS with wheel-mounted pressure sensors, and indirect TPMS that uses ABS wheel-speed data to infer pressure changes. Here is how they differ:

Direct vs Indirect TPMS

• Direct TPMS: Each tire has a sensor (in the valve stem or inside the tire) that transmits pressure readings to the TPMS module. If any tire is below the recommended pressure or a sensor fails, the warning light activates.


• Indirect TPMS: No tire-specific sensor exists. The system uses ABS wheel-speed sensors to detect changes in the rolling radius that imply underinflation. A warning appears when the difference exceeds calibration thresholds.

Direct TPMS provides actual per-tire pressure readings and can identify which tire is low; indirect TPMS relies on calibration and can be affected by tire size, wear, or sensor replacement.

What to do when the TPMS warning lights up

If the TPMS light comes on, begin by checking all tires and inflating them to the vehicle’s recommended cold pressure (listed on the door placard). Temperature changes and driving conditions can affect readings, so verify with a gauge after a cold start.

• Check tire pressures with a quality gauge and inflate to the recommended cold inflation pressure.


• Inspect tires for leaks, punctures, or damage. Address issues as needed and replace tires if necessary.


• If all tires are at the correct pressure, the issue may be a faulty sensor or a need for a TPMS relearn. Driving at a moderate speed for several minutes or following your model’s relearn procedure may clear the warning.


• If the warning persists after inflating and relearning, have the system diagnosed by a Dodge service center. A faulty sensor or a dead battery in a sensor may require replacement and reprogramming.

Regular maintenance helps ensure the TPMS warning reflects real conditions. When in doubt, consult your owner's manual for model-specific guidance.

Maintaining and servicing TPMS on a Dodge

Keeping TPMS working correctly involves managing sensor life, timely calibration after tire work, and understanding that sensor batteries typically last five to ten years. Replacing tires or sensors often requires a relearn or reprogramming step, which a dealer or tire shop can perform with the proper tools.

• Direct TPMS sensors have a finite battery life; when a sensor fails, replace the sensor and complete a relearn.


• Relearn procedures vary by model and year. Some require inflating all tires and driving at a certain speed; others need a tool or button in the dash to initiate. Check the owner's manual or ask a Dodge service professional for the exact steps.


• After rotating tires or replacing wheels or sensors, perform the relearn so the system correctly identifies each tire’s position and pressure.

Maintaining proper tire inflation and following the relearn steps after service will keep the TPMS reliable. If warnings persist, seek professional diagnostic help.

Summary

TPMS on a Dodge is a safety feature that monitors tire pressure and alerts you to underinflation or sensor faults. Most models use direct TPMS with wheel-mounted sensors, though some configurations use indirect TPMS. Regularly check tire pressures, perform relearn after tire work, and consult a Dodge dealer or tire shop if warnings persist.

Can I still drive my car if the TPMS light is on?

You can drive a short distance with the TPMS light on, but it's not safe to continue driving for long periods. The light indicates low tire pressure, which can cause poor vehicle handling, reduced braking ability, and increased risk of a tire blowout or blowout. You should check your tire pressure as soon as possible and inflate the tires to the recommended level listed on the driver's side doorjamb or in the owner's manual. 
What to do if the TPMS light comes on
This video explains what to do when your TPMS light turns on: 1mautodoc.co.ukYouTube · Sep 28, 2023

• Check your tire pressure: Use a tire gauge to check the pressure in all four tires and the spare. 
• Inflate tires if necessary: Add air to bring the pressure up to the recommended level, as listed on the sticker inside your driver's side door or in the owner's manual. 
• Drive to a service station: If you don't have a gauge or an air compressor, drive cautiously to the nearest gas station to inflate your tires. 
• If the light stays on: If the light remains on after inflating, or if it blinks, it could indicate a system malfunction or a flat tire that requires professional attention. 
• If a tire has a blowout: If you experience a blowout, grip the steering wheel firmly with both hands, avoid sudden braking, and gradually slow down while steering to a safe location. 

How to fix TPMS warning light?

To fix a TPMS light, first check and adjust tire pressure to the manufacturer's recommendation, then try to reset the system by using the TPMS reset button, driving at 50 mph or above, or disconnecting the battery. If the light remains on, have your tires, sensors, or the system itself professionally inspected.
 
This video demonstrates how to reset the TPMS light: 33sDashboard warning lights YouTube · Jan 2, 2024
1. Check and adjust tire pressure 

• Find the correct tire pressure on the label inside the driver's door jamb. 
• Use a tire pressure gauge to check each tire and inflate them to the recommended pressure if low. 
• Make sure to check the spare tire, as it may also have a sensor. 

2. Reset the TPMS light 

• Use the TPMS reset button: Locate the button, often under the steering wheel, and press and hold it until the TPMS light blinks three times. Then, start the car and wait about 20 minutes for the system to reset. 
• Drive to recalibrate: Drive at a consistent speed of 50 mph or higher for at least 10 to 15 minutes. The system may reset itself when you turn the car back on. 
• Use the hard reset method: Disconnect the positive battery cable, turn the car on, and honk the horn for about three seconds to discharge any remaining power. Reconnect the battery to reset the system. Note that this will likely reset your car's clock and radio presets as well. 

You can watch this video to learn how to reset the TPMS light on a Nissan or Infiniti: 56sTheDIYGuyDOTnetYouTube · Oct 15, 2017
3. Seek professional help

• If the light stays on: This could indicate a faulty sensor or another issue with the TPMS system itself. 
• Visit a tire shop: Professionals have special tools that can diagnose and reset the system more efficiently. A flashing TPMS light is often an indicator of a system malfunction that requires professional attention. 

This video explains what to do if the TPMS light is still on after resetting: 1mDirtFarmerJayYouTube · Jan 15, 2022

Why is my TPMS light on but tires are fine?

If the tire pressure light is on but your tires are properly inflated, it could be due to cold weather, a sensor issue, or a system malfunction. First, manually check your tire pressure, as a faulty gauge can be misleading. If the pressure is correct, try driving for a few miles to see if it resets automatically, or perform a manual reset using the button on your dashboard or through the vehicle's settings. If the light remains on, the issue is likely a malfunctioning sensor or a need for recalibration, so take the vehicle to a professional for diagnosis and repair.
 
This video explains the reasons behind the TPMS light staying on even after refilling the tires: 46sMaxTheCarGuyYouTube · Mar 6, 2023
Step 1: Manually check tire pressure 

• Use a reliable tire pressure gauge to check the pressure in all four tires. 
• Inflate or deflate the tires to the pressure recommended on the label inside the driver's side door jamb, not the maximum pressure listed on the tire itself. 
• Do not rely on the gauge on the gas pump, as they can be inaccurate. 

Step 2: Reset the system 

• Drive the vehicle for a short period (about 10 minutes at 50 mph). The system may reset on its own after a few miles. 
• If the light remains on, try a manual reset. 
  • Look for a "TPMS" or "SET" button on your dashboard or in the glove box. 
  • Press and hold the button until the light blinks twice. 
  • Some modern cars have this function in the infotainment system under "Vehicle" or "TPMS" settings. 

Step 3: Look for other causes

• Cold weather: Temperature changes can cause tire pressure to drop, triggering the light. 
• Spare tire: Some vehicles have a TPMS sensor in the spare tire, so check its pressure as well. 
• Faulty sensor: The sensor in one of the tires could be broken or have a dead battery. A flashing light often indicates a sensor malfunction, while a steady light can mean a tire is low. 
• Recent work: The system may need to be recalibrated after you've rotated your tires or had new ones installed. 

This video explains why the TPMS light comes on and how to resolve it: 1mSilver CymbalYouTube · Jan 20, 2020
Step 4: Professional diagnosis

• If the light still won't turn off after these steps, there is likely an issue with one of the sensors or another part of the TPMS system. 
• A professional can use a diagnostic tool to pinpoint the exact problem and make the necessary repairs. 

Can I replace a TPMS sensor myself?

Yes, you can replace a TPMS sensor yourself, but it requires specific tools and knowledge, and you will need to be able to handle tire removal and reinstallation. The process involves removing the tire from the rim, breaking the bead, removing the old sensor, installing the new one, and then re-seating and inflating the tire. After replacement, you will also need to use a special tool to program the new sensor to your car's computer system. 
Tools and materials you will need

• New TPMS sensors (and a programming tool)
• Jack and jack stands
• Lug wrench
• Valve core removal tool
• Torque wrench
• Tire pressure gauge
• Soap and water or lubricant
• Gloves and eye protection
• A method to break the tire bead (can be done manually or with a machine) 

Step-by-step guide

1. Safety first: Park your vehicle on a flat, level surface and engage the parking brake. 
2. Remove the tire: Loosen the lug nuts on the wheel you'll be working on. Lift the vehicle with the jack and place it securely on jack stands. Remove the wheel from the car. 
3. Deflate the tire: Use the valve core removal tool to fully deflate the tire by removing the valve core. 
4. Break the bead: Use a method to break the bead, which separates the tire from the rim. This can be done manually with a piece of wood or a specialized tool, or with a machine. 
5. Remove the old sensor: Once the bead is broken, push the tire away from the rim to access the sensor. Unscrew the nut holding the old sensor to the valve stem and remove it. 
6. Install the new sensor: Clean the area where the old sensor was located. Lubricate the new sensor's rubber seal with soapy water or lubricant. Install the new sensor and tighten the nut to the manufacturer's specified torque with a torque wrench. 
7. Re-seat and inflate the tire: Mount the tire back on the rim. You may need to use soapy water to help the bead seat properly. Inflate the tire to the pressure listed on your car's door jamb. 
8. Program the sensor: Use a TPMS programming tool to sync the new sensor's ID with your vehicle's computer. This may also be done through the car's dashboard settings, depending on the make and model. 

Important considerations

• Torque specifications: It is crucial to tighten the sensor nut to the manufacturer's specified torque value to avoid leaks or damage. 
• Spare tires: Remember to check if your vehicle has a sensor in the spare tire and replace it as well if needed. 
• Programming is essential: The new sensor will not work until it is programmed to the car's system. 
• Difficulty: Replacing a TPMS sensor can be challenging, especially with low-profile or all-season tires. If you are not comfortable with the process, it is best to have a professional do it.