A vehicle sealing member to be attached to a retainer fixed to a roof of a vehicle including sashless doors, the vehicle sealing member being made of an elastic material configured to seal a gap between the roof and an upper edge of a movable window pane of an associated one of the sashless doors, the vehicle sealing member comprising: a lower hollow seal portion against which the upper edge of the movable window pane is pressed from under the seal portion, wherein an inner portion of the lower hollow seal portion in a lateral direction of the vehicle is open, and the inner portion of the lower hollow seal portion in the lateral direction of the vehicle has an intermediate engagement protrusion and a contact portion, the intermediate engagement protrusion being inserted into, and engaged with, a lower engagement hole of the retainer, the contact portion coming in contact with a portion of the retainer around the lower engagement hole from outside in the lateral direction of the vehicle so as to be supported by the retainer, the vehicle sealing member being characterized in that an upper hollow seal portion is formed as an upper portion of the vehicle sealing member, and the lower hollow seal portion is formed as a lower portion of the vehicle sealing member, an inner portion of the upper hollow seal portion in the lateral direction of the vehicle has an upper slit to open the upper hollow seal portion to inside of the vehicle in the lateral direction of the vehicle, an inner portion of the lower hollow seal portion in the lateral direction of the vehicle has a lower slit to open the lower hollow portion to inside of the vehicle in the lateral direction of the vehicle, a portion of the upper hollow seal portion adjoining an upper edge of the upper slit has an upper protrusion protruding upward and extending in the front-to-rear direction, the upper protrusion being engaged with an upper protrusion of the retainer adjoining an upper engagement hole of the retainer so as to be hooked from the inside in the lateral direction of the vehicle while being inserted into the upper engagement hole, an upper wall of the upper hollow seal portion extends so as to be curved downwardly toward an outer end of the vehicle in the lateral direction thereof, and is continuous with a tip end of a lower wall of the upper hollow seal portion, outer ends of upper and lower walls (32a, 32b) of the lower hollow seal portion in the lateral direction of the vehicle are connected together via a lateral wall, the intermediate engagement protrusion is engaged with a portion of the retainer around said lower engagement hole of the retainer while being inserted into the lower engagement hole, the upper wall of the lower hollow seal portion is spaced apart downwardly from the lower wall of the upper hollow seal portion, and extends so as to be inclined downwardly toward the outer end of the vehicle in the lateral direction thereof, an upper engagement protrusion is formed between the upper and lower hollow seal portions (31, 32), and protrudes inward in the lateral direction of the vehicle, and the upper engagement protrusion is engaged with a portion of the retainer around an intermediate engagement hole of the retainer while being inserted into the intermediate engagement hole. a lower hollow seal portion against which the upper edge of the movable window pane is pressed from under the seal portion, wherein an inner portion of the lower hollow seal portion in a lateral direction of the vehicle is open, and the inner portion of the lower hollow seal portion in the lateral direction of the vehicle has an intermediate engagement protrusion and a contact portion, the intermediate engagement protrusion being inserted into, and engaged with, a lower engagement hole of the retainer, the contact portion coming in contact with a portion of the retainer around the lower engagement hole from outside in the lateral direction of the vehicle so as to be supported by the retainer,