Police announced the teenager was the seventh victim of the horrific shooting spree on Sunday night while hospital staff got ready to harvest her organs.
But as her mother stood next to her, for what she thought would be the last time, the youngster suddenly squeezed her hand.
The girl, who has been referred to only as A.K in court documents, was then rushed into surgery at Bronson Hospital in Michigan.
As of Monday morning, she was still fighting for her life.
She was hit by bullets allegedly fired by Jason Dalton , a crazy Uber driver on Saturday night while she sat in a car in the parking lot of a Cracker Barrel.
The other four passengers - Mary Lou Nye, 63, Mary Jo Nye, 60, Dorothy Brown, 74, and Barbara Hawthorne, 68 - were all killed.The teenager was rushed to hospital with injuries so severe, doctors believed she hadn't made it.
When her parents arrived, doctors told them she was brain dead. Around two hours after that, she was getting ready for surgery when she incredibly showed signs of life.
Michigan State Police First Lt. Dale Hinz described the moment the girl showed signs of life.
He told Michigan Live: 'The only word to describe it is wow. It's absolutely a miracle that she's alive and we're definitely hopeful for her continued improvement.
The Gov told reporters: 'She’s got all our thoughts and prayers to have a chance to come back. So it’s going to be quite a recovery period.'
Father-of-two Dalton surrendered to police on Sunday morning after he allegedly fired a barrage of 30 bullets at eight innocent and defenseless people during a five-hour rampage.
It was later revealed he was an Uber driver who was picking up and dropping off passengers in between his shooting sprees.
Some who got in his car to use his service said he was driving erratically and one even called 911 to report his bizarre behavior when they got out.