The car has temporary license plates and is possibly a Buick.
At 1:40 p.m. Wednesday, an 89-year-old woman was hit and seriously injured by the car, which was heading south on Cottage Grove Ave.
The incident happened in the 6700-block of Cottage Grove Ave.
The vehicle had a female driver.
People with information on the incident are asked to contact the Chicago Police Department Major Accident Investigation Unit at (312) 745-4521. The reference number is HS-290415.