Diane Dupree was killed Oct. 10 near Crenshaw Boulevard and 63rd Street.
The surveillance footage shows the suspect's car, which is believed to be a 1980s or early 1990s model Honda or Toyota.
Authorities say Dupree, 57, was walking along a crosswalk when she was hit. Her son, Officer Dontae Phillips, said this is the first time he's been on the other side of the fence, in which he lost a family member due to, what he called, a heinous crime.
Earlier this month, the Los Angeles City Council gave approval for a $50,000 reward for information leading to the arrest and conviction of the person responsible for Dupree's death.
That reward is officially expected to be announced Wednesday at a press conference.
Investigators are having a difficult time tracking down the car and the driver involved in the deadly hit-and-run. They hope the reward will encourage someone who knows something to speak up.
If you have any information about this case, you're urged to contact the LAPD at (877) LAPD-24-7.