how to reset my Ram 1500 DT (2019-Present) “service tire monitor” light

Ram 1500 DT (2019-Present)

Error Codes

30 minutes

Time

medium

Difficulty

medium

Severity

3 min read

469 words

Problem Statement

Learn how to reset the Service Tire Monitor light on your 2019-Present Ram 1500 DT. Step-by-step guide with diagnostic steps and tools required.

Affected Component

Electrical

Estimated Time

30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always ensure tires are at the appropriate pressure before resetting the TPMS.

Symptoms

•"Service Tire Monitor" light illuminated on the dashboard
•Tire pressure warning light may also be displayed
•Inaccurate tire pressure readings
•Tire pressure monitoring system may not function correctly
•Possible messages on the vehicle's display indicating tire issues

Diagnostic Steps

1
Check all tire pressures using a tire pressure gauge to ensure they are at the recommended levels.
2
Inspect the tires for visible damage or abnormalities that may affect pressure.
3
Use an OBD-II scanner to check for any TPMS-related error codes.
4
Verify that the TPMS sensors are functioning properly by checking their battery status and signal.
5
If all tires are at proper pressure and no error codes are found, prepare to reset the TPMS system.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Tire pressure gauge

Parts Required

•TPMS sensors (if faulty and need replacement)

Related Faults

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Diagnostic Steps

1
Check all tire pressures using a tire pressure gauge to ensure they are at the recommended levels.
2
Inspect the tires for visible damage or abnormalities that may affect pressure.
3
Use an OBD-II scanner to check for any TPMS-related error codes.
4
Verify that the TPMS sensors are functioning properly by checking their battery status and signal.
5
If all tires are at proper pressure and no error codes are found, prepare to reset the TPMS system.

Solution

1. Preparation

Gather necessary tools: OBD-II scanner, tire pressure gauge, and the vehicle's owner's manual.
Ensure all tires are inflated to the manufacturer's recommended pressure.
Clear the area around the vehicle for safety.

2. Reset the Tire Monitor System

Turn on the Ignition
- Insert the key and turn the ignition to the "ON" position without starting the engine.
Access the TPMS Reset Feature
- Navigate to the vehicle settings using the steering wheel controls or the dashboard display screen.
- Find the “Tire Pressure” or “TPMS” menu option.
Perform the Reset
- Select the option to “Reset” or “Relearn” the TPMS.
- Follow on-screen prompts, if available, to complete the reset.
Drive the Vehicle
- Drive the vehicle for approximately 10 minutes at speeds over 15 mph to allow the system to recalibrate and register the new tire pressures.

3. Verify the Reset

Check for Warning Lights
- After driving, check if the "Service Tire Monitor" light has turned off.
Monitor Tire Pressure Readings
- Use the dashboard display or an external gauge to ensure the system is accurately reading tire pressures.