A computerized, on-road, vehicle service handling method involves, while a user is driving a vehicle between first and second locations, receiving a fault condition signal from an on-board diagnostic system; automatically transmitting information to multiple vehicle service locations ahead of the vehicle, including vehicle and fault information and an individual estimated time of arrival (ETA) based upon current location and speed; receiving individual service responses including at least a parts and labor cost estimate, and at least one appointment time after the ETA; receiving a selection by the user of at least two of the provided vehicle service locations and an order of preference thereof; sending payment information to the first vehicle service location; receiving a communication either accepting or rejecting, and, if accepted, automatically directing the user to the first vehicle service location, but if rejected, sending the payment information to a next preferred vehicle service location.