The captain seats lurches forward at a high speed without any warning as well as without any precipitating event. This has occurred three times, once with the driver side captain seat and two times with the passenger seat. The indicator on the top of the seat was down before each event so the assumption was the seat was securely locked in position. A child was in a car seat on the passenger side captain seat during the last unlatching event resulting in the child hitting the back of the passenger seat knocking her front teeth loose and bruising her nose (pic attached). The driver stopped in traffic and put the car in park to get out and assist the child as this was the only way to get the seat back in position. The car is to be inspected by the dealer today.