Multi-turn user requests:
user: Before attempting to start the engine, kindly verify that every car door is meticulously secured—acknowledge once confirmed. Should everything be aligned, proceed with activating the START mode.
user: Please assess my tire pressures within the context of the car's current status. If any tire registers under 40 PSI, which might imply it's below the safe threshold, promptly guide me to the closest tire service facility.

Tools involved: VehicleControlAPI
Expected function-call sequence: VehicleControlAPI.displayCarStatus
VehicleControlAPI.lockDoors
VehicleControlAPI.startEngine
VehicleControlAPI.check_tire_pressure
VehicleControlAPI.find_nearest_tire_shop