Police say the car rolled down a steep hill between Sandhurst Drive and Victory lane in Salt Lake City just before 8:00 a.m.
Police and fire personnel were investigating why the car drifted from Sandhurst Drive before rolling.
According to Salt Lake City Fire officials, five construction workers who were working on a home on North Churchill Drive said they saw the vehicle leave the road on Churchill Drive where the road dead-ends.
Officials said the vehicle traveled down the steep hill, across North Sandhurst Drive and continued 400 feet down the hill.
City officials said the construction workers ran down the hill and pulled the 33-year-old female driver out of the burning vehicle, using their hammers to pry open the driver-side door.
Officials say the driver was the only person in the vehicle, and was conscious when taken to a local hospital in serious condition, having suffered a seat belt burn and singed hair.
SLFD officials said that firefighters quickly extinguished the grass fire before the fire could threaten any homes on Sandhurst Drive, and that one firefighter suffered minor injuries during a fall as he approached the burning vehicle, having suffered minor scrapes and cuts on his arms.