Your key fob contains a hidden mechanical key blade that unlocks your car when the battery dies, plus backup engine start procedures.

Wallet. Cell phone. Car keys. That’s the mental checklist many of us go through before we leave the house. But don’t you hate it when you approach your car, click the unlock button and nothing happens ...

And what you can actually do about it. Drop your phone, and your day’s ruined. Lose your car key, and your month might be. In 2025, replacing a modern key fob can cost more than buying a new iPhone.