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 cost to replace the latest key fobs can be as much as $400 depending on the brand. Then add another $20 to $130 to program it to work with your car.

Thieves can capture the remote-controlled code sent by an owner to his car and then re-program a blank key and steal the car at their own convenience.