To provide a vehicular lighting fixture such that relaxes a shock to a person by backward deformation of a front cover 20 and an extension reflector 34, when an automobile collides with the person, and the backward deformation of the front cover 20 will not be hindered by the extension reflector.

On the vehicular lighting fixture absorbing the shock at collision by the elastic deformation of the front cover 20 having small wall thickness, housing a light source unit U1 provided with a light source 31 and the reflector 34 in a lamp chamber S demarcated by a lamp body 10 and the front cover 20, a plurality of peripheral edge parts of the extension reflector 34 are fixed to the front cover, and a thin fragile part (V groove) 66, cut by the shock at collision, is formed between a fixing part 60 where the extension reflector 34 is mounted on the front cover 20 and an extension reflector body 34A. The fragile part 66 is cut by an impact force F, the front cover 20 is deformed elastically, absorbs the impact without breaking, and the person collided will not be injured.

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