The Mean Girls star was detained by police officers in New York after the low-speed accident in the early hours of Wednesday morning (19Sep12).
According to TMZ.com, Lohan was driving her Porsche Cayenne into a hotel car park in downtown Manhattan when she collided with a man as he crossed a walkway, hitting his knee.
As a passenger in the car checked the damage, Lohan is alleged to have walked in the Dream Hotel, where she was attending an event.
Cops were called to the location and arrested Lohan when she emerged from the hotel. She was later booked for leaving the scene of an accident, according to the website.
Lohan has since been released from custody.
The alleged victim of the accident, who has not been named but is in his 30s, reportedly attended a nearby hospital for treatment but details of his injuries were unknown as WENN went to press.
If Lohan is convicted of the misdemeanour offence, it could constitute a violation of the probation she was put on for the theft of a necklace from a jewellery store in Venice, California last year (11).