A vehicle door system includes, among other things, a vehicle body and a slidable door that is slidable back and forth relative to the vehicle body between an open position and a closed position. The system further includes an alignment bracket assembly having a door-mounted portion and a body-mounted portion. The door-mounted portion and the body-mounted portion are wedged against one another when the slidable door is in the closed position to restrict movement of the slidable door relative to the vehicle body when the slidable door is in the closed position.

A vehicle door system includes, among other things, a vehicle body and a slidable door that is slidable back and forth relative to the vehicle body between an open position and a closed position. The system further includes an alignment bracket assembly having a door-mounted portion and a body-mounted portion. The door-mounted portion and the body-mounted portion are wedged against one another when the slidable door is in the closed position to restrict movement of the slidable door relative to the vehicle body when the slidable door is in the closed position.