Police are searching for a Springvale carjacker.
They said a woman was in her blue Toyota Camry on Princes Highway at Springvale Junction about 8.20pm on Sunday 30 April.
A man dressed in black allegedly boarded her vehicle and made demands.
Police are appealing to anyone with information about this incident to call Crime Stoppers 1800 333 000 or visit www.crimestoppersvic.com.au.