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If you have a standard mechanical key it is likely to get a replacement at any hardware store for affordable. The key must be programmed by a locksmith or dealer.

Smart keys are more complex and require a visit from the car dealer to be paired with your car. They are costly however, many insurance companies will pay for the cost.

Mechanical Keys

You can still buy car keys that are only mechanical, like the ones you insert into an ignition lock cylinder, and turn to start your vehicle. If your car uses one of these keys, it's affordable to replace the fob and key (if lost or stolen).

A locksmith can create new keys for less than what you purchase from a dealership. You can also have a friend or neighbor that is proficient in programming transponder keys from the aftermarket (which are less expensive than keys from factory) cut keys and have them programmed. It is essential to have a spare because modern cars won't begin if a key without the correct chip is used.

Transponder keys look a lot like mechanical keys, however they are actually equipped with an electronic chip in the base of their plastic shape that communicates with your vehicle's computer system. Your car will be able to recognize the code inside the chip and accept it, however it will refuse to start if any other code is utilized.

If your spare key has a chip it must be programmed at a dealership. They will need to use a special machine to both cut the key and program it. These machines are only available at specific dealerships, and it's unlikely that a locksmith has the tools needed to make keys that are laser-cut with a transponder.

It is expensive to replace keys with remotes, particularly if you require an extra. You could try reprogramming your fob by yourself if you're missing the key shank and have a functional replacement fob, but it could be time-consuming and laborious. If you've lost the entire fob and key however it's best to contact a dealer as the best option.

There are other types of keys for cars that require a more specific set of skills to replace, like flip keys and smart keys. They are more complex and need to be replaced by a dealer. Some key fobs feature an electronic key that folds into the enclosure and opens a door or is operated by the use of a proximity sensor to open and start your vehicle.

Transponder Keys

If your car was built in the past 10 years or so, you're likely to use transponder keys. These keys have a microchip within the key itself and the car's receiver that both have been programmed to communicate with one another to start the vehicle.

Transponder keys are a great way of deterring theft, as they require two parts to start the car - the transmitter in the key and the receiver attached to the immobilizer. Without both the key and the immobilizer system being present the car will not start and it will be impossible to hotwire.

The key chips are programmed with a unique serial number that is unique to the vehicle you own. When the key is inserted into the ignition, the serial number is then sent to the immobilizer in the car and verified that it matches up, it will then allow the engine to run. The only thing that could defeat this security feature is a special device that is able to detect the chip and match it to another car.

You'll have to find a locksmith that has the equipment needed to reprogram your key. Some car dealerships provide this service as well but they are typically more expensive than a independent locksmith because of their costs.

It isn't easy to find an original key that comes with a chip. To program your car, the key must be programmed on a specific machine. This requires specific software and the right key cutter to get it done properly.

Most auto parts stores can clone some of the simpler keys for chips, but you will need to know the serial number of the original key to ensure the correct information is programmed into the key. Many people make the error of going to their dealer to have their chip key copied and end with a bill that is higher than what they should.

Laser-Cut Keys

Laser-cut keys are also referred as a sidewinder key due to the distinctive winding cut on the key shank. They add an extra layer of security to your vehicle. Because it takes specialized machinery to duplicate these keys, they're a fantastic deterrent against auto-theft.

Like transponder keys, they have embedded chips that stop duplicate keys from starting your car. They come with a unique code that must be programmed into your vehicle to unlock it and start it. This additional level of security will guard your investment and stop thieves from trying to steal your car for parts or to resell it.

Laser-cut keys differ from mechanically-cut keys in terms of design. They have fewer grooves that are carved on the key. The shaft of the key is more substantial, which is another indication that this isn't a standard car key. Locksmiths typically use a machine called milling tool to cut these types of keys. This tool is similar to a drill bit and it's designed to remove metal with precise angles.

These are among the most secure keys you can purchase for your vehicle, since they are extremely difficult to duplicate and can only be cut by the locksmith who is a certified dealer. They're not like traditional keys. They're constructed from a tiny piece of steel that's shaped into a code and then cut with a laser in the factory. This kind of key is able to endure a lot of wear and tear and is among the best options to protect your vehicle.

The key can be folded into the fob, or it can be removed by pressing the button. These keys are used in German automobiles, and offer an additional layer of protection against car thieves. They also make it difficult for thieves to pick or pick-lock your car, as the cylinder is extremely tough and hard to break into.

Smart Keys Keys

Smart keys communicate with the vehicle using radio-frequency identification (RFID) instead of the traditional single piece of carved metal. This means they come with tiny chips that contain an encrypted code that is unique to each key. When you open your car doors or pop the trunk, the key sends a signal to your vehicle's computer onboard. The computer will then prompt the appropriate frequency to allow you to start your vehicle.

The smart key's chip has a number of security features that protect against theft. First, the key emits a low-frequency signal that can't be received by any receiver other than your car key replacements. If the computer onboard detects this signal, it will trigger an alternative one that's an individual sequence that only your car can comprehend. This stops a cyber-savvy criminal from using an external generator to "fool" the system and make the key work for other vehicles.

In addition to locking and opening the car, some smart keys come with additional features like storing specific driver preferences remote opening windows or the sunroof, and more. These features are accessible by activating the proximity sensor on the key fob by pressing a button, or, in certain instances you can do this by twisting a small piece of metal inside the key.

Certain key fobs can be opened by placing the dead key in a slot or by placing it in proximity to an inductive coil that is located on the dashboard. Some key fobs feature mechanical (fully emergency) key blade that is inside the key.

To replace a smart key, you'll need a trip to the dealer, where they can request the replacement or have it on hand. The dealer will also need to program your new key to recognize your car key replacement price. But, you can go to a locksmith shop to have your new key fob programmed and replaced. Locksmiths will cost more than dealers, but he or she can do the job quicker and at a lower cost.