When the 63-year-old grandmother noticed the vehicle going down the driveway, she tried to stop it but was hit by the open door.
6-year-old Kiara Paolasin was with her family when she went to get a stray sandal that floated into the water.
The accident happened in the backyard of his home in Central Islip around 9:30 p.m. Saturday.
Beachgoers are soaking in the sun and looking to make new memories at Long Island's Robert Moses State Park as they celebrate the holiday weekend.
A swimmer was bitten by a shark at Jones Beach on Friday afternoon.
Crowds packed Jones Beach on Friday as aircraft rehearsed for the upcoming FourLeaf Air Show, giving spectators an early look at the performances scheduled for the holiday weekend.