Jennie Zhu, a San Francisco resident, will be arraigned Thursday on the manslaughter charge and two felony counts of reckless driving causing injury, district attorney's office spokesman Alex Bastian said.
Zhu was arrested on the charges late Friday night but has since posted $300,200 bail and was released from custody, Bastian said.
Zhu is accused of going through multiple stoplights on Pine Street on the morning of Sept. 27 before rear-ending a minivan occupied by a mother and her teenage son and daughter.
The son, 16-year-old Lincoln High School student Kevin San, was killed in the crash.
"It's devastating; I lost my son and I almost lost my wife," Kevin San's father Hong Man said Mionday. "Now I just hope she gets what she deserves in accordance with the law."
Man said his daughter has recovered fully, but it will take much longer for his wife.
"We can concentrate with her," he said. "The main problem is her memory has lost a lot and she takes time for her memory to come back."
Zhu reportedly told police that the car may have malfunctioned and that it began accelerating on its own.
ABC7 news has learned that investigators brought in an engineer from Mercedes Benz and experts from the California Highway Patrol to look into that possibility. Court records state that they "found there were no mechanical issues that could explain unintended acceleration."
Bay City News contributed to this report.
