The key fob is your lifeline to your car, letting you unlock the doors and set off the alarm, at a minimum, but how can you tell if it needs a new battery?

Wayne Cunningham reviews cars and writes about automotive technology for CNET's Roadshow. Prior to the automotive beat, he covered spyware, Web building technologies, and computer hardware. He began ...

If you have ever wished your car would unlock the doors when you walk up to it and lock the doors when you walk away, Viper has a slick product you will like. The product is called the Viper Smartkey ...