1. A method of updating electronic operating instructions of a vehicle, the method comprising the acts of: storing local operating instruction data objects in a local storage device arranged in the vehicle for use by a user; storing corresponding current operating instruction data objects in an external storage device; assigning one data object category, respectively, to the operating instruction data objects; updating a current operating instruction data object, in accordance with an update frequency, from the external storage device to the local storage device in order to modify the corresponding local operating instruction data object in the local storage device; and wherein said update frequency of the local operating instruction data object depends on the data object category assigned to the data object.