Social media helped a sex assault victim find her alleged assailant — an Uber driver — whose information she was then able to turn over to police, according to court documents.

A preliminary hearing will be held in Honolulu District Court today for Luke Wadahara, who was arrested Sunday and later charged with three counts of first-degree sexual assault for allegedly attacking a 16-year-old girl whom he picked up Sunday while working as an Uber driver. His bail was set at $150,000.

According to a police affidavit filed in District Court on Tuesday, the victim told police that she and her friends used their cellphones to request an Uber ride from Ala Moana Center on Saturday night.

A black Dodge Charger with the personalized license plate “SEXI” arrived, with Wadahara as the driver, the affidavit said.

The suspect dropped off the friends in Mililani first and then proceeded to drive to Makiki with the victim, according to the affidavit. During the ride, Wadahara asked whether the victim was single. The victim said she told the suspect that she was not interested in him, the affidavit said.

The suspect detoured to a place in Makiki where he parked the car and sexually assaulted her several times, the affidavit said.

The victim was able to free herself and ran home, where she and her mother found the suspect’s profile on the Uber profile webpage and then looked him up on Facebook, the affidavit said. She turned his name and photo in to police.

Drivers for the online transportation network company are not licensed like taxicab drivers. The Uber mobile app allows consumers with smartphones to submit trip requests, which are then routed to Uber drivers who use their own cars.