Select the vehicle you would like to pair. Click on the "settings" icon. Select the "Module" tab. Make sure that the vehicle ignition is turned on. Check if the GSM module is correctly connected to the GAS controller. Check that the GSM module is compatible with the GAS controller. If the controller is connected and the module is compatible you can move to the pairing step.
Select the "Pairing" tab. Make sure that the ignition key on the vehicle is turned on otherwise the option to pair will be disabled. Press the "PAIR MODULE" button. Pairing should start and complete automatically. You can confirm the operation is successful by looking at the Pairing request history at the bottom of the screen.
Once the module is paired the screen should look like this:
After completing all of the above with no errors you will be ready to use your module.