A sergeant with the Milwaukee Department of Corrections was killed in a road-rage shooting in front of her teenage son — whom she was teaching how to drive, authorities said.

Tracey Smith, 46, was in the front passenger seat as she gave her 17-year-old son a driving lesson Aug. 30, according to a criminal complaint from the city’s police department.

The teen was in a left turn lane when a gold van cut in front of him to make the same turn from the wrong lane — and the two vehicles collided, authorities said.

The teen stopped the car, and his mother got out to survey the damage and confront the van driver, police said.

The driver, later identified by authorities as Matthew Lee Wilks, 35, became irate, yelling, “B—h, I’ll kill you!” before firing one shot, according to the criminal complaint.

Smith cried, “He shot me!,” her teen son told authorities. She then stumbled and fell to the ground.

When the teen ran to help his mother, Wilks made a U-turn and drove away, cops said.

The next day, Wilks was taken into custody — and on Wednesday, he was hit with multiple felony charges, including first-degree intentional homicide and possession of a firearm by a felon, police said.

If he’s found guilty, he could spend the rest of his life behind bars, authorities said.

Khalif Rainey, a member of the Milwaukee Common Council, urged the community to offer “support and comfort” to Smith’s family.

“Ms. Smith was a longtime Department of Corrections officer who was well respected, and she was an especially important leader and bright light for her family and friends,” he said in a statement.

Ollie Luckett, the victim’s father, told ABC affiliate WISN he thinks reckless driving is to blame.

“You know how it is on these streets,” he said. “You probably ride it. You know how these people are acting. It’s ridiculous. My daughter shouldn’t have lost her life like that.”

“I don’t know what to say,” he added. “But I know one thing, the way my daughter lost her life. It wasn’t right. It ain’t right.”

“She went to work every day,” JoAnne Luckett, the victim’s mom, told FOX 6. “She made a life for her and her sons. I wake up every morning and it’s like, ‘Wow. Tracey is not here.’ I hate it. I hate it. I hate the way things are in this city.”