A trainable transceiver (40, 400) for automatically transmitting an activation signal to a remote electronic system, comprising: a transceiver circuit configured to transmit the activation signal to the remote electronic system; and a control circuit including a memory storing reference images, the control circuit configured to: receive an initialization trigger, wherein the initialization trigger is at least one of a determination that the trainable transceiver (40, 400) is within a predetermined distance from the remote electronic system, a determination that a vehicle in which the trainable transceiver (40, 400) is mounted is in a gear other than park, or the trainable transceiver (40, 400) powering on; perform, in response to receiving the initialization trigger, at least one of activating an image data source or transmitting a request for image data to the image data source using a communications interface; receive image data from the image data source; determine if the received image data matches one or more reference images associated with the remote electronic system; determine if the trainable transceiver (40, 400) is approaching the remote electronic system in response to a match between the received image data and the one or more reference images; and in response to determining that the trainable transceiver (40, 400) is approaching the remote electronic system, format an activation signal to control the remote electronic system and cause the transceiver circuit to transmit the activation signal. a transceiver circuit configured to transmit the activation signal to the remote electronic system; and a control circuit including a memory storing reference images, the control circuit configured to: receive an initialization trigger, wherein the initialization trigger is at least one of a determination that the trainable transceiver (40, 400) is within a predetermined distance from the remote electronic system, a determination that a vehicle in which the trainable transceiver (40, 400) is mounted is in a gear other than park, or the trainable transceiver (40, 400) powering on; perform, in response to receiving the initialization trigger, at least one of activating an image data source or transmitting a request for image data to the image data source using a communications interface; receive image data from the image data source; determine if the received image data matches one or more reference images associated with the remote electronic system; determine if the trainable transceiver (40, 400) is approaching the remote electronic system in response to a match between the received image data and the one or more reference images; and in response to determining that the trainable transceiver (40, 400) is approaching the remote electronic system, format an activation signal to control the remote electronic system and cause the transceiver circuit to transmit the activation signal. receive an initialization trigger, wherein the initialization trigger is at least one of a determination that the trainable transceiver (40, 400) is within a predetermined distance from the remote electronic system, a determination that a vehicle in which the trainable transceiver (40, 400) is mounted is in a gear other than park, or the trainable transceiver (40, 400) powering on; perform, in response to receiving the initialization trigger, at least one of activating an image data source or transmitting a request for image data to the image data source using a communications interface; receive image data from the image data source; determine if the received image data matches one or more reference images associated with the remote electronic system; determine if the trainable transceiver (40, 400) is approaching the remote electronic system in response to a match between the received image data and the one or more reference images; and in response to determining that the trainable transceiver (40, 400) is approaching the remote electronic system, format an activation signal to control the remote electronic system and cause the transceiver circuit to transmit the activation signal.