my Ram 1500 DT (2019-Present) tire pressure light won't reset, how can I fix it?

Ram 1500 DT (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

517 words

Problem Statement

Learn how to reset the tire pressure light on your 2019-Present Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely parked and on a level surface before performing any checks or repairs.

Symptoms

•Tire pressure warning light illuminated on the dashboard
•Inconsistent tire pressure readings
•Possible decrease in fuel economy
•Tires appear to be visually inflated properly
•TPMS sensor fault codes may be present

Diagnostic Steps

1
Check the tire pressure of all four tires using a tire pressure gauge.
2
Inspect for any visible damage to tires and rims, including punctures or leaks.
3
Scan the vehicle's computer system with an OBD-II scanner for TPMS-related error codes.
4
Verify the TPMS sensors' battery life and functionality, especially if the vehicle has had tire rotations recently.
5
Reset the TPMS system using the vehicle’s onboard computer or reset button (if available).

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
•Air compressor
•TPMS reset tool (optional)

Parts Required

•TPMS sensors (if damaged and needing replacement)
•Valve stems (if necessary)

Related Faults

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Diagnostic Steps

1
Check the tire pressure of all four tires using a tire pressure gauge.
2
Inspect for any visible damage to tires and rims, including punctures or leaks.
3
Scan the vehicle's computer system with an OBD-II scanner for TPMS-related error codes.
4
Verify the TPMS sensors' battery life and functionality, especially if the vehicle has had tire rotations recently.
5
Reset the TPMS system using the vehicle’s onboard computer or reset button (if available).

Solution

1. Preparation

Gather necessary tools: OBD-II scanner, tire pressure gauge, air compressor, and a TPMS reset tool (if available).
Ensure the vehicle is parked on a level surface and the engine is off.

2. Check Tire Pressures

Use a tire pressure gauge to measure the pressure in all four tires.
Inflate or deflate the tires to the manufacturer's recommended pressure (found on the driver’s door jamb).

3. Inspect TPMS Sensors

If the tire pressures are correct, visually inspect each tire for TPMS sensors, usually located in the valve stems.
If accessible, remove the wheel and inspect the sensor for any physical damage.

4. Reset the TPMS

If the sensors are functional, follow these steps to reset:
1. Turn the ignition to the "On" position without starting the engine.
2. Locate the TPMS reset button (if equipped) under the steering column or in the glove box.
3. Press and hold the reset button until the TPMS indicator blinks three times, then release it.
4. Start the vehicle and allow it to run for a few minutes to complete the reset cycle.

5. Recheck for Error Codes

After resetting, use the OBD-II scanner again to check if any TPMS-related error codes remain.
Clear any fault codes if they are still present after the reset.