Parking structure vehicle location service

A location system of a shared vehicle, comprising:

• a location module configured to, when a signal strength of a global position system (GPS) module is less than a predetermined signal strength, determine a present location of the shared vehicle within a parking structure based on measurements from one or more sensors of the shared vehicle;
• a floor module configured to, when the signal strength of the GPS module is less than the predetermined signal strength, determine a present floor of the parking structure on which the shared vehicle is located;
• a wireless transceiver module configured to, when the shared vehicle is off and parked within the parking structure, when a second signal strength of a cellular transceiver module of the shared vehicle is less than a second predetermined signal strength, transmit the present location and the present floor to a first computing device of a first renter at an end of a first rental of the first renter of the shared vehicle;
• the first computing device, wherein the first computing device is configured to transmit the present location and the present floor to a rental server that is remote from the shared vehicle;
• and
• the rental server, wherein the rental server is configured to transmit the present location and the present floor of the shared vehicle to a second computing device of a second renter of the shared vehicle for a second rental of the shared vehicle after the first rental,
• wherein the second computing device is different than the first computing device.