The incident unfolded overnight near Sherman Way and Sepulveda Boulevard, according to police.
A witness reported seeing the toddler alone around 1 a.m., wearing only a diaper and T-shirt.
By 5 a.m., the parents were located and they were being interviewed by police. The Department of Public Social Services brought the child to the police station to reunite him with his parents.
Additional details about the situation were not available.