A vehicle ignition key includes a shank portion securely attached to a grip portion including a housing with an exterior housing surface. An actuation switch includes a switch contact surface complementary with the exterior housing surface, and is electrically coupled with a digital message controller and a power source. The housing defines a chamber which can hold the digital message controller, the power source, and/or a message generator. The message generator can transmit a message from the digital message controller. Actuation of the actuation switch upon rotation of the ignition key in the ignition switch is facilitated by the complementary surfaces, and initiates processing of stored data and transmission of the digitized data from the digital message controller to the message generator.