Method and system for triggering a function in a vehicle

A method for triggering a vehicle function via a wireless connection between a mobile device that is actuatable by a user and an electronic controller provided for triggering the vehicle function, wherein the controller is configured to check an access permission of the mobile device and to trigger the vehicle function only if the access permission is in order, the method comprising:

• a) prompting the mobile device via a request of the electronic controller to transmit the access permission to the electronic controller for the vehicle function;
• b) after said prompting the mobile device, receiving the request of the controller via the mobile device and transmitting, via the mobile device, the access permission to the electronic controller;
• c) after said receiving the request of the controller, checking the access permission via the controller and triggering the vehicle function via the controller if the access permission is in order;
• d) wherein the mobile device transmits the access permission to the controller only if the mobile device has previously been actuated for authorization and has thus been authorized to transmit the access permission;
• and,
• e) wherein the controller triggers the vehicle function only if a signal of a sensor device that is mounted in the vehicle and connected directly to the controller and that is actuatable by the user has previously been received in the controller to so provide a double level of security wherein the user must actuate both the mobile device and the sensor device at a time interval.