It happened around 7:15 p.m. Tuesday, Sept. 24, in Oakdale.
A 2020 GMC Sierra was traveling southbound on Oakdale-Bohemia Road when it attempted to make a left turn onto Montauk Highway when it struck the woman, according to Suffolk County Police.
The victim, a 58-year-old Ronkonkoma resident, was taken by ambulance to Stony Brook University Hospital for treatment of serious physical injuries.
The driver of the Sierra, a 51-year-old Oakdale man, was not injured.
Anyone with information on this crash to contact Suffolk County PD Fifth Squad detectives at 631-854-8552.
Check back to Daily Voice for updates.
Click here to follow Daily Voice Bellport-Brookhaven-East Patchogue and receive free news updates.