Abstract: The invention relates to a computer-implemented method for automatically deactivating the right or left turn signals of a vehicle at the end of a turn, the method comprising steps consisting in: (a) determining, as long as the right or left turn signals are on, the steering wheel angle with respect to a neutral position in which the two steered wheels of the vehicle are straight, (b) determining (108) the average angle of the steered wheels in relation to their upright position from the steering wheel angle, (d) when the left turn signals are on, automatically deactivating (120) the left turn signals when the average wheels angle exceeds, in relative value, a first positive threshold and then, still in relative value, falls below a second positive threshold, (e) failing this, keeping (118) the left turn signals on, (f) when the right turn signals are on, automatically deactivating (120) the right turn signals when the average wheels angle (A2) falls below, in relative value, a first negative threshold (?01) a