Electronic interface modules for wired and wireless interface of handheld electronic devices, including an electronic interface module that is sold as an integral part of a motor vehicle; computer hardware and computer software for mobile telephones; software for mobile telephones that provides users with the ability to remotely control features of a motor vehicle, such as, locking and unlocking vehicle doors, starting or turning off the vehicle engine, and/or to connect to a call centre for assistance; software for mobile telephones that provides users with the ability to remotely check the status of motor vehicle operating systems, such as, engine oil life, fuel level, tire pressure and battery charge, and/or to connect to a call centre for assistance