How your car's security system works Inside your key fob, there’s a tiny computer chip. This chip is programmed with a unique code that it sends to your car's security system. The car also has a chip, ...

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.

The Apple Wallet app may soon offer digital Car Key support for select GM vehicles, according to newly discovered code. Apple's Car Key is already supported by more than 30 vehicle manufacturers. At ...