Cleared cache for Android Auto and Google Play. UI like this,password of the factory settings is 3368. I'm planning to buy or lease a new car with Android Auto built-in. But keep in mind, this is a total factory reset, like the type that first prompts you for your language, etc. According to the manual I need to be using an iPhone to run Android Auto. Scroll down, select and execute 'factory reset'.5 settings you won't regret changing on your Android phone.This removes later head unit updates that prevent circumvention of the application install lockouts, preventing the install of custom APK's. While any data stored in your Google Account will be restored, all apps and their associated data will be uninstalled. Maximum failed password attempts : Specifies how many times a user can enter the wrong password before the device wipes its data. Android head unit factory reset password f.