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

If you're looking to pick up a new key fob, or repair one, you might wonder how long programming it takes and whether or not you can do it yourself.

The key fobs for European cars and SUVs are typically the most expensive, thanks to their sophisticated rolling-code encryption to prevent theft.

Several car manufacturers require the use of special scan tools to reprogram their key fobs. Some license those tools out to locksmiths and auto repair shops.

Replacing a key fob usually involves contacting your dealership who then needs to place a custom order. But the K2 fob works like a universal remote for vehicles, requiring just their make, model ...

If you're in a pinch and need a new copy of your car key, Ace Hardware may be the better alternative over the dealership, but it depends on what car you own.

Electronic keys introduce new components that can be expensive, even without paying a dealer to program them. If you can do the job yourself, you can save both time and money by not having to visit ...

Consumer Reports recommends the dealer for autos under 5 years old. But after that, you can get a mechanic, locksmith or online fob replacement.

5 On Your Side Replacing a key fob is expensive. 5 On Your Side shares cheaper options While it's expensive to replace a lost car key fob, there are cheaper options.

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.