A detection system for a vehicle comprises at least one detection device configured to detect conditions in a passenger compartment of the vehicle and a controller. The controller is in communication with the at least one detection device. The controller is configured to monitor data from the at least one detection device prior to an entry of an occupant. Based on the data from the at least one detection device, the controller is further configured to identify at least one change in the passenger compartment of the vehicle. The at least one change in the passenger compartment indicates at least one of an item left behind in the passenger compartment, damage to the vehicle, and contamination of the vehicle.