A tire pressure monitoring system (12) for a vehicle (10) has a plurality of tires (14a, b, c and d) in respective rolling locations and a spare tire (14e) generating a spare tire identification. A controller (22) starts the timer (44) and sets a tire status to a rolling status, a pending rolling status,...http://www.google.com/patents/US6985076?utm_source=gb-gplus-sharePatent US6985076 - Method and system for detecting the presence of a spare replacement in a tire pressure monitoring system for an automotive vehicle
