The car was a city-owned vehicle, and the fire was caused by an electrical issue, authorities said.
The fire broke out before 11 a.m. near West 17th Place and South Union Avenue, in the Pilsen neighborhood.
City vehicle engulfed in flames in Pilsen, CPD says
Chicago police said the fire started in the interior roof of the car near a light bar.
The occupants of the vehicle were able to exit safely and no injuries were reported.
No further information was immediately available.