Movie was probably made in the 1940s; woman escapes her house at night from a man threatening her, tries to drive away in a car she is unfamiliar with, is foiled because she can’t see through the rain and doesn’t know how to work the windshield wipers
“Thriller”(1960-62 TV series)?
It sounds similar to s02 ep18 ‘Storm’.Here is the full episode from YouTube. She runs away in the rain at about 0:36:00.
https://youtu.be/fsOEJEE2Ipw