The 23-year-old man was pronounced dead at the scene, Los Angeles Police Department Sgt. Kara Nightingale told City News Service.
His identity had not been released pending notification of family, she said. The crash occurred at about 2:15 a.m., and closed the state highway in both directions.
Traffic was detoured via Sunset Boulevard and Temescal Canyon Road, according to Nightingale. PCH was expected to reopen at about 8 a.m. she told CNS.
The driver of the vehicle, a white sedan, was not injured or booked. "This was simply an unfortunate accident," the officer said.