Locksmiths might not be able to program fobs for every brand. Another option is to buy a key fob online and then have it programmed at a dealership or by a locksmith.

“The fob has become a critical part of the security of the car,” he said. The average price for an Audi key fob replacement, including programming, is $500, we were told.

When the battery is removed from the key fob, the fob can lose its ‘memory’ or programming. If the key fob is not working after replacing its battery, a reprogramming procedure may be required.

And that’s just for the fob. Add another $50 to $100 to get replacement fobs programmed to work with your car and to have a new mechanical backup key made.

The simplest way to program a Focus smart key fob is to take the car to a Ford dealer or qualified locksmith and have them program it for you. Modern cars need to have their keys coded to the computer ...

Just know that most customer-programmable key fobs will require two current working keys in order to program the new one. RELATED: How to replace your key fob | Your key fob may have hidden features ...

When your Honda key fob runs out of battery, you can take it to a dealership, but it's pricey. It's much cheaper and not too difficult to do it yourself.

Like anything else relying on a battery, you car key fob can die—often at the worst time. Thankfully, these batteries are easy to replace.

Key programming uses a device developed by hackers that plugs into a diagnostic port in the car, then allows them to programme a blank key fob as if it's the genuine key for that car. Once done, that ...

Batteries fade and die over time, but but changing the cell in your Chevrolet key fob doesn't have to be difficult.

Your car's key fob is totally hackable, but there's a simple way prevent potential break-ins and theft.

Learning how to change the battery in a Toyota key fob isn't difficult. Whether you have a new or old model, we'll show you how to do it step by step.