While some hardware stores may be able to program a modern car key, it’s something most folks end up at their car dealer for—or a locksmith, if you’ve lost a key altogether.

New key fobs must be programmed with codes that the vehicle has to read before it unlocks the door or allows starting the engine.

In this primer on how to replace a car key fob, Consumer Reports says getting another high-tech key fob can be a pricey proposition.

Replacement of Lost Keys: If you lose a key with a transponder chip, the new one needs programming. Additional Security: Even if someone duplicates your car key, without the correct transponder ...

While wrapping your car’s key fob in an aluminium foil is not the most ideal way to prevent any thefts, it can be seen as the most inexpensive way.

CheapInsurance.com looks at average car key replacement costs, DIY options, insurance coverage and prevention tips.

The key fob is a notable chink in the modern car's less than optimal cybersecurity armor.