A pedestrian was fighting for life after being struck by a car in Eumemmerring on Friday 14 June.
The male was struck while crossing Princes Highway about 7pm, police say.
He was taken to hospital with life-threatening injuries and remained in a critical condition the next day.
The driver, a 21-year-old Chadstone woman, stopped at the scene.
Greater Dandenong Highway Patrol officers are investigating.
Any information or dashcam/CCTV footage to Crime Stoppers on 1800 333 000 or crimestoppersvic.com.au