Abstract: The vehicle-use start control system includes a control section which initializes a control signal outputted from the control section when a power supply voltage supplied is lower than or equal to a predetermined initialization voltage, and sets a voltage level of the control signal depending on the detected shift range of the automatic transmission, and a latch section which outputs a start permission/inhibition signal a voltage level of which is indicative of starting of an engine of the vehicle being permitted or inhibited. The latch section latches the voltage level of the start permission/inhibition signal when the power supply voltage is predicted to be lower than or equal to the initialization voltage during the start processing period.