A dashboard device of a vehicle includes a storage component and a processor. The storage component stores a plurality of different language packs and a first national table listing a first number of unique language indices associated respectively with the language packs. The processor is coupled to the storage component and is programmed to, in response to receipt of a machine code and a second number related to another plurality of unique language indices from a portable electronic device, use one of the language packs to set language used on the dashboard device based on content of the machine code and a relationship between the first and second numbers.