A system and application to alert parents or guardians to the solitary status of a dependent accidentally left within the confines of a vehicle is described. The system alerts individuals in the event that a dependent such as a child is left behind via the use of sensors configured to detect the presence of the dependent, and determine if he or she is alone. Upon recognizing that the dependent has been left alone, an alert is sent to the parent or guardian's wirelessly connected key fob and/or mobile device via a proprietary mobile application. Simultaneously, the system employs an active display sticker, configured to calm or entertain the dependent left within the vehicle until the alerted parent or guardian returns.