VEHICLE CONTROL METHOD AND VEHICLE CONTROL DEVICE

An autonomous travel controller (103) detects whether a host vehicle is carrying out a first course change for changing course in the direction indicated by a turn indicator (80), and when it is detected that the host vehicle is carrying out the first course change, detects, by means of a course detection unit (104) and from an image captured by an imaging device (121) that photographs the area ahead of the host vehicle, whether there is a road that, as a road that enables a second course change for changing the course of the host vehicle, branches from a road after the first course change, and when a road that enables the second course change is detected, turns the turn indicator (80) off.