Police say it happened Sunday in Queens around 2:30 p.m.
The suspect approached the girl on a street corner and, after engaging her in conversation, lured her inside his vehicle.
Police say he drove to a nearby location where he exposed himself to her and committed a criminal sex act.
The victim managed to escape and called 911 from a friend's house.
She was treated at Queens General Hospital and released.
Police released a sketch of the suspect and a video of his car.
Anyone with information about the suspect is asked to contact Crime stoppers at 1-800-577-TIPS (8477).