If your car's smart key dies on you, it's still possible to unlock your car and start the ignition without replacing the key's battery immediately.

If you have a newer car, you may have a battery-powered smart key with a lot of really convenient features. But what do you do if that battery dies?

Smart keys for cars have almost entirely phased out regular keys. Though not perfect, smart keys have a lot of benefits, and they work in an interesting way.