A representative for the Santa Paula Fire Department told The Hollywood Reporter that the actor was getting on the highway after leaving the Santa Paula Airport.
Authorities said the woman was the only occupant in the car and that Ford and others helped her out of the vehicle. She had minor injuries.
The California Highway Patrol is investigating the cause of the accident.
This is the latest in a string of good deeds Ford has been reported as doing.
E! News reported that, in 2000, he was in his helicopter when he rescued two female hikers from the top of Table Mountain in Wyoming as they had altitude sickness. In 2001, he found a missing 13-year-old Boy Scout while flying a helicopter around Wyoming.
A representative for Ford did not comment to KABC on the report.