Tire pressure monitoring systems (TPMS) are essential in ensuring safe driving, alerting drivers to changes in tire pressure that could compromise vehicle control. However, after adjusting the tire pressure or rotating tires, the TPMS light often stays on. Using an OBD2 scanner, you can easily reset the tire pressure light yourself without a costly visit to the mechanic.

Guide to Reset Tire Pressure Light 

1. Prepare Your Vehicle and Gather Necessary Tools

To reset the TPMS, you’ll need the compatible car diagnostic tool ANCEL V6 pro with TPMS reset capabilities.

Start by ensuring the car is parked on a flat surface, and the ignition is off. Then, proceed with the following steps.

2. Check Tire Pressure and Adjust if Needed

Use a tire gauge to check each tire’s pressure, ensuring it matches the manufacturer’s recommended PSI level, which can usually be found on the driver’s side door placard or in the manual. Inflate or deflate each tire as necessary to reach the recommended pressure.

3. Connect the Car Scanner

Locate your car’s OBD-II port, typically under the dashboard on the driver’s side. Plug in the scanner securely, then turn the ignition to the “ON” position without starting the engine.

4. Select the TPMS Reset Option

Most OBD-II scanners will have a dedicated menu for TPMS functions. Here’s how to navigate it:

• On the scanner’s interface, select “Diagnostics” or “TPMS Reset.”
• Choose “Relearn” or “Reset TPMS” from the options displayed.

This process may vary slightly depending on your scanner model. Consult the scanner’s manual if you’re unsure.

5. Perform the Relearn Procedure

The relearn process varies based on the car model, but here’s a general approach:

• Direct TPMS Relearn: The scanner will instruct you to drive the vehicle at a certain speed for a few minutes to complete the TPMS relearn process. Alternatively, some cars require you to place the scanner close to each wheel for the relearn procedure.
• Indirect TPMS Relearn: Some vehicles may require a simple reset via the scanner without the need to drive the car.

The scanner will confirm once the relearn process is complete.

6. Verify TPMS Light Reset

Turn off the ignition and disconnect the scanner from the OBD-II port. Start the car and check if the TPMS light has turned off. If the light is still on, repeat the steps or refer to the troubleshooting tips below.

Common TPMS Reset Issues

1. TPMS Light Won’t Turn Off

If the light remains on after resetting:

• Confirm that all tires are inflated to the correct pressure.
• Repeat the relearn process, ensuring the scanner is set to the correct mode.
• Drive the vehicle for 10-15 minutes at highway speeds, as some systems require this to finalize the reset.

2. Inconsistent Tire Pressure Readings

If your scanner shows different readings than a handheld tire gauge, it could be due to:

• A faulty sensor: TPMS sensors can wear out, especially if the car is older.
• Temperature fluctuations: Cold weather may temporarily lower tire pressure. Recheck pressure once the tires are at a stable temperature.

3. TPMS Sensor Battery Issues

Direct TPMS sensors have batteries that eventually die. If a sensor’s battery is low, you’ll need to replace the sensor to maintain TPMS functionality.

Conclusion

With the ANCEL V6 Pro car scanner, resetting the TPMS light is a breeze. It guides you through each step with simple, clear instructions. But that’s just the beginning—the ANCEL V6 Pro has a ton of advanced features, like bi-directional control, key programming, immobilizer, and all system diagnostics. Whether you’re a home mechanic or a pro, this scanner gives you the powerful tools you need to get the job done right.