A language setting system, for use by a driver having a preferred language and a smartphone, when entering a vehicle to set an active language of the vehicle for vehicle communications with the driver. The vehicle connects with and scans the smartphone. When the smartphone has a user selected language setting, the user selected language setting is used to set the active language of the vehicle. When scan of the smartphone detects examples of language usage in text and email communications, and such examples meet a threshold usage, the active language may be set to the language of the usage examples. When examples of multiple languages are detected on the smartphone, the driver may be prompted to select the preferred language from a list of the detected examples.