Authorities are calling this an unfortunate accident. It happened around 6:45pm outside a home in the 10000 block of Verano near Holland.
Police say the mother was with her six children and had pulled into the driveway of a home for sale to look at it. They say the mother decided she wanted the Suburban closer to the house so asked her 12-year-old daughter to get in the driver's seat and she would tell her when to stop.
When the girl was told to brake, she accidentally stepped on the accelerator instead and struck the mom.
"It's very unfortunate as to what happened," Jacinto City Police Department Chief Joe Ayala said. "Of course, it's just something that shouldn't be done. She should have got in the vehicle and she should have done that herself instead of instructing the child."
Neighbors tried to lift the SUV off the woman, but it was too late to save her.
No one else was injured.