Syracuse Police spokesperson Erin Behm said the girl, later identified by friends and family as 15-year-old Marli Hamblin was sunbathing while listening to her iPod in the driveway when a member of her family was backing a white Chevrolet pick-up truck out of the garage.
Behm said the truck backed over the girl, who was air-lifted to a nearby hospital.
On Saturday, the girl was still listed in critical condition, according to Behm, who also reported that the driver of the truck will not be facing charges.
Hamblin's family confirmed that Marli passed away Sunday afternoon from head injuries.
A GoFundMe.com account under the name "Miracle for Marli" was set up in the girl's name to help the family with expenses.
Hamblin graduated from Syracuse Jr. High School in June and was preparing to enter Syracuse High School later this month.
Behm said, "This is a very tragic accident and our thoughts and prayers are with the girl and her family."