Gone are when you couldn't start your car's engine without a physical key. Modern vehicles today come with key fobs that are more useful than just starting your car and locking and unlocking its doors ...

Digital car keys are still a concept suffering from lackluster adoption, mainly because the technology is expensive and phone makers only offer it on high-end mobile devices with a premium price tag.

Like anything powered by a battery, a car key fob can die—often at the worst time. Here’s how to change the battery in your key fob quickly and safely. Physical keys used to be standard, but today’s ...