Perla Vazquez, 24, was taken into custody after the car she was driving rear ended a Jeep Wrangler early Friday morning in Fresno.
The impact caused the driver of the jeep to lose control and drive off an embankment. Frank Winslow, 54, died in the crash.
Vasquez was pulled over by an off-duty police officer away from the accident scene in Clovis, after the officer noticed her car had major front end damage.
Court documents show Vazquez has two prior drunk driving convictions.