A method of controlling vehicle functions is provided that includes receiving at a service provider, security data from a vehicle function system. The security data is related to a security code required to activate one or more functions controlled by the vehicle function system. The method also includes receiving a vehicle function request at the service provider from a remote device. The vehicle function request indicates a request to activate a particular function of a vehicle. In addition, the method includes sending a vehicle function command from the service provider to a mobile wireless device. The vehicle function command is adapted to cause the mobile wireless device to transmit a wireless signal to activate the particular function of the vehicle and the vehicle function command includes the security code or authentication information related to the security code.