The incident happened Dec. 17 around 4 a.m. in the area of West Fordham Road and the Major Deegan Expressway.
According to police, a 30-year-old man was involved in a vehicle collision with the suspect. Following a dispute, the suspect shot the man in the right leg, police say.
EMS transported the victim to St. Barnabas Hospital in stable condition.
The suspect drove away in a white Mercedes-Benz sedan in an unknown direction, police say.
Anyone with information is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477). The public can also submit their tips by logging onto the Crime Stoppers website.