Everett Police said earlier Friday the teen had died, but Harborview says the girl is still alive, albeit in grave condition.
Police say a Chevy Suburban was heading east on 112th Street SE and making a left turn onto 7th Avenue SE when it collided with a westbound Camry at about 2:40 p.m.
The impact sent the Camry careening onto a sidewalk where it struck the teen, and then hit a building and rolled over onto its hood, coming to rest next to a tree.
The critically injured teen was rushed to Harborview Medical Center in Seattle. Her name has not been released.
The 48-year-old driver of the Camry was taken to Providence Medical Center in Everett to be evaluated. Police say the 16-year-old driver of the Suburban was not injured.
Police continue to investigate the collision. Criminal charges, if any, will be forwarded to the Prosecutor's Office for review and a charging decision.