The California Highway Patrol says the 54-year-old actor was not under the influence when he lost control of his car Sunday night. They say he struck the hill on a particularly curvy stretch of the canyon road.
During a 2006 arrest for a suspected DUI, Gibson launched a verbal tirade against the officer that included anti-semitic remarks.
Sunday's crash comes as the Los Angeles County Sheriff's Department is nearing the completion of a domestic violence investigation.
That case stems from a bitter child custody dispute with Gibson and his former girlfriend.