Suzanne Infante was the second resident to die as a result of the crash at Amberwood Gardens in the 1600 block of Peterson Avenue, according to the Santa Clara County medical examiner's office.
Esther Bocanegra, 88, died Saturday from her injuries.
Infante, Bocanegra and 10 or 12 other residents were in a common room at the home when a 90-year-old visitor parking her car hit the gas pedal instead of the brakes, and crashed through a large window, according to San Jose police Sgt. Jason Dwyer.
Seven people were injured and taken to hospitals, Dwyer said.
The crash remains under investigation.