Police released a photo Monday they believe is a closer likeness to the missing woman's car.
Beata Candre, a 48-year-old wife and mother, is described as a 5-foot-3, 170-pound white woman with brown hair and blue eyes, according to a missing endangered person alert from Schaumburg police.
She was wearing a black shirt, black sweat pants and white gym shoes when she went missing, police said. She was driving a black 1994 Jeep Grand Cherokee with Illinois plates ARH648.
Family and police are concerned about her well-being because of a medical condition, police said.
Anyone with information should call police at (847) 882-3534 or email firstname.lastname@example.org.
The Sun-Times Media Wire contributed to this report.