If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

FleetOwner helps commercial fleet executives and maintenance managers who oversee the operations of five or more vehicles. FleetOwner's award-winning editorial and veteran sales staff help trucking ...

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...