1. Access the OBD-II port. Locate the OBD-II port inside your vehicle. It's usually found under the dashboard, near the steering wheel.
2. Connect a diagnostic scan tool. Plug the OBD-II diagnostic tool into the OBD-II port.
3. Turn the key to the "ON" position. Turn the key to the "ON" position without starting the engine. Ensure that all electronic systems, such as the radio and lights, are turned off.
4. Enter the vehicle's security code. The security code is a 4-digit code unique to your vehicle. You can find the code in your vehicle's owner's manual or by contacting your local VW dealership.
5. Press the "OK" or "Enter" button. Once you enter the correct security code, press the "OK" or "Enter" button on the diagnostic scan tool.
6. Wait for the reset process. The diagnostic scan tool will start the key reset process, which usually takes a few minutes.
7. Retrieve the new key code. Once the key reset process is complete, the scan tool will display a new key code. Write down the code for future reference.
8. Check for confirmation. Turn the key to the "OFF" position and then back to the "ON" position. If you hear a single chime sound or see a message on the dashboard indicating successful key recognition, the reset process is complete.
9. Test the spare key. Try starting the vehicle with the spare key that you previously cut or purchased. It should work properly after completing the key reset process.
10. Disconnect the diagnostic scan tool. Safely remove the diagnostic scan tool from the OBD-II port. Your VW Sharan's car key should now be successfully reset, allowing you to use the spare key to unlock, lock, and start your vehicle.
