Modules were sent out in bulk to dealerships to have them installed during the installation of the generator. Versus waiting for the WIFI kit and process that route due to a surplus in Wi-Fi modules. Your dealership should have received an email in the subject it was labeled as "Your Wi-Fi Modules Will Arrive Soon! ". In the box with the modules you should also see a copy of the email itself.
Additional Instructions : link
Subject: Your Wi-Fi Modules Will Arrive Soon!