Rear window defrosters are invaluable when it comes to helping you see on a cold morning, but yours may do more than just melt ice. Here's what to know.

QUESTION: I just noticed my rear window defroster has a big gap in the middle that doesn't defrost. It's about 2 inches tall. I was told the window needs to be replaced to fix this, and it's really ...

The National Highway Traffic Safety Administration (NHTSA) has opened an investigation into a Lucid Motors windshield defroster recall from January, saying it’s “concerned” the company’s over-the-air ...