The contact owns a 2016 Chevrolet Equinox. The contact stated while the vehicle gear was in park; he switched from the driver's seat to the passenger seat with his wife. His wife was taking over to become the driver. While attempting to change drivers, the vehicle inadvertently reversed. The wife was trying to stop the vehicle while being partially in and partially out of the vehicle. The vehicle dragged the wife into an area of bushes. The contact stated while the passenger door was still open, when it accidentally hit him and knocked him over. There were no warning lights illuminated. The air bags did not deploy. The police and medical team arrived on the scene. The contact believed a police report was filed. There was no medical treatment on the scene. The contact stated the wife was bruised from the waist to both feet. The contact believed he cracked his rib. The wife will be examined by a urologist and nephrologist. The right front passenger door and entire rear bumper were damaged. The vehicle was strapped together, and the contact drove it home. The vehicle was not diagnosed or repaired. The contact related the failure to transmission issues. The manufacturer was notified of the failure. The approximate failure mileage was 48,000.