They’ve identified the suspect as Aaron Ginn, 27, of Cornflower Lane in Waldorf, Md.
Police began investigating shortly before 3 p.m. on July 2.
They say the victim had requested an Uber ride around 5 a.m.
After the driver picked her up, he allegedly exposed himself and sexually assaulted her.
The victim was able to escape from the driver while still inside the vehicle.
Police obtained a warrant for Ginn’s arrest the following day.
Ginn is a black male, who stands 5-foot-7 and weighs 170 pounds. He has black hair and brown eyes.