Abstract: Method and system for securing a vehicle against theft where at least one essential operational element of the vehicle can be switched between three operating states, and the essential operational elements are switched into a substantially unrestricted operation-ready operating state A by an external usage authorization device independent of the vehicle over means for transmitting the authorization data, at least one essential operational element is switched into an operation-ready operating state B by an event-dependent circuit through at least one event for a period of time, the period of time depending on predefined operating parameters and either at least one essential operational element of the vehicle is switched after the passage of time for putting out of operation the vehicle into a non-operation-ready or restrictively operation-ready operating state C, or the essential operational elements are switched before the passage of the time period into operation-ready operating state A according to first st

Abstract: The invention relates to a method and a device for securing a vehicle against theft. According to the invention, at least one essential operating element (2) of the vehicle can be switched between three operating states A, B and C. An external authorization device (3) switches the operating element into the unlimited operating state A. If a defined action (20) is carried out, for example the driver's door is opened, the operating element is switched into the operating state B for a defined period of time. If authorization information is transmitted during this time, the operating element is switched back to the operating state A. Otherwise, once this period of time has expired, the operating element is switched into the non-operational operating state C.

Abstract: The invention relates to a method and a device for securing a vehicle against theft. According to the invention, at least one essential operating element (2) of the vehicle can be switched between three operating states A, B and C. An external authorisation device (3) switches the operating element into the unlimited operating state A. If a defined action (20) is carried out, for example the driver's door is opened, the operating element is switched into the operating state B for a defined period of time. If authorisation information is transmitted during this time, the operating element is switched back to the operating state A. Otherwise, once this period of time has expired, the operating element is switched into the non-operational operating state C.