The shooting happened at about 10 p.m. Tuesday in the 7900 bock of Elmwood, near 80th Street, police said.
The woman's ex-boyfriend was standing on the sidewalk when he opened fire on the new couple, according to police.
Police said the woman was hit in the hip but is expected to survive.
The video above shows the bullet holes that hit the truck.
Police said the woman's boyfriend was not hurt.
Authorities said they know who the suspect is and are looking for him.