Modern key fobs can do a lot, but even a dead battery usually won't leave you stranded—if you know where to place the fob.

A key fob is a small device that helps you engage the security system on a car to gain access and, sometimes, start the car remotely. They come attached with an RFID chip & an antenna inside and use ...

Old-school key fobs only let drivers lock or unlock all four doors at once, but today’s vehicles include a more flexible ...