Straddle vehicle and light control method thereof

A straddle vehicle, comprising:

• a light having a headlight;
• a situation acquisition unit acquiring situation of the vehicle;
• a controller controlling illumination by the light;
• and
• an operation member operable to indicate an optical axis angle of the headlight,
• wherein the operation member is switchable between a first operation position, a second operation position, and a third operation position,
• wherein when operating force is released while the operation member is at the first operation position, the operation member is held at the first operation position,
• wherein when operating force is released while the operation member is at the second operation position, the operation member is held at the second operation position,
• wherein when operating force is released while the operation member is at the third operation position, the operation member returns to the second operation position,
• wherein the controller is switchable between a first mode and a second mode,
• wherein in the first mode, the controller sets the headlight to high beam when the operation member is at any of the first operation position and the third operation position, and sets the headlight to low beam when the operation member is at the second operation position,
• wherein in the second mode, the controller controls to change an illumination mode by the light according to the situation acquired by the situation acquisition unit, and the switching from the first mode to the second mode is performed by holding the operation member at the third operation position for a first threshold time or more, and;
• wherein the operation member functions as a passing switch.