Vehicular interior part

A vehicular interior part that is a side part of a vehicle in a vehicular width direction, the vehicular interior part comprising:

• an interior part main body that is a part of a vehicular interior side surface;
• an elongated light guide member that guides light from a light source;
• and
• a light guide member holder mounted to the interior part main body and that holds the light guide member, the light guide member holder including:
• an elongated holder main body including a holder recess where the light guide member is arranged and having a U-shaped cross section and extending in an elongated direction of the light guide member;
• and
• at least two mount portions provided on a peripheral end portion of the holder main body and arranged along an elongated direction of the holder main body and mounted to the interior part main body, wherein
• the holder main body includes a weak portion between the at least two mount portions, the weak portion having mechanical strength lower than other parts of the holder main body.