Losing a car key used to be a minor inconvenience. Today with the new, programmed key fobs, getting a new key can become a major headache, not to mention a major expense. Depending on what type of key you need for your car, you may need to do different things to secure a replacement.

Standard Keys

Getting a new version of a standard key is a simple matter if you still have a copy of the key. In this case, you can take the key to a key cutter or locksmith and have a duplicate made for $1 or $2. If you don't have a copy of the key in question, you will need a locksmith to produce a new key. The locksmith will need to come to where your car is in order to evaluate the lock and produce a key that fits.

Wireless Keys

For newer cars, it's likely that the key you need to replace is a wireless key. These electronic keys allow you to lock and unlock your car doors with the touch of a button. More advanced systems establish a signal between the wireless key and the car. With the key present, you simply press a start button to turn the car on. These keys use proprietary software that varies based on the car manufacturer. Most car manufacturers provide the software codes for their keys to licensed locksmiths, but not all do. If you need to replace an electronic key, call around to locksmiths first. They will be able to give you the best deal if they are able to replace your key. Have your car's make, model and year on hand so that the locksmith can quickly check on availability for you. If a locksmith is not able to provide a replacement key, you will have to call a car dealer who specializes in your type of car to get a new key made that will work with your vehicle.

Source:

Apprentice Search: Locksmiths

Boston Globe: Replacing Car Keys