Most drivers have experienced that moment of panic: You walk up to your car, press the unlock button on your key fob, and nothing happens. Maybe the battery died overnight, or maybe you simply ignored the warning signs for far too long. Either way, it's easy to assume you're stuck.
The good news is that most modern cars have a built-in backup system designed specifically for this situation. Even if the battery inside your key fob is completely dead, there's usually a simple trick that will let you start the engine and get on your way.
