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If you have a standard mechanical key, you should be able to get a replacement at any hardware store for affordable. However, the key will need to be programmed by a locksmith or dealer.
Smart keys are more complicated and require a visit to the dealer to connect them to your vehicle. These types of keys are typically expensive but some insurance companies will cover the cost.
Mechanical Keys
You can still buy mechanical keys for cars which you put into the ignition lock cylinder to start your vehicle. If your car is equipped with one of these, replacing the fob and key is relatively cheap (if they get lost car keys replacement or stolen).
A locksmith can make an entry level key for you at a cheaper cost than what you'd pay in the dealership. You can also ask a neighbor or friend who is able to program transponder keys (which are cheaper than the factory keys) to make you a spare key and then program it. Getting a spare is important since modern cars won't be able to start when a key is not programmed with the proper chip is used.
Transponder keys look like mechanical keys, however they have a hidden electronic chip embedded in the bottom of their plastic design that communicates with your vehicle's computer system. Your car will accept the code in the chip, but will not start if you try to use another code.
If your spare key has a chip, you'll need to bring it to a dealership to get it programmed. You'll need a specific machine to cut the key and program it. These machines are only available through certain dealerships, and it's unlikely that a locksmith will have the tools needed to make a laser-cut key with a transponder.
It's costly to replace keys using remotes, especially if you require a spare. You can try reprogramming your fob on your own if you're just missing the key shank and have a functioning replacement car key fobs fob, but it could be time-consuming and difficult. You're better off going to an expert if you've lost both the key and the fob.
There are different kinds of car key replacement cost keys that require a more specialized set of skills to replace, like flip keys and smart keys. They are more complex and need to be replaced by a dealer. Certain key fobs operate by a proximity sensor or a spring-loaded door opener.
Transponder Keys
Transponder keys are most likely to be found in cars that were built within the last 10 years. These keys contain the microchip as well as an electronic receiver that is programmed to communicate with start your vehicle.
Transponder keys are a fantastic method to deter theft since they require two parts for the car to be started which is the transmitter (transponder) in the key and the receiver that is connected to your immobilizer system. The car won't start without the key and the immobilizer system.
Key chips have an individual serial number specific to your vehicle. The serial number of the key is then sent to the immobilizer inside the car, and then checked to be in line. If it does the engine starts, it will. This security feature is only blocked by a specially designed device which can read the chip to match it to another vehicle.
You'll have to find a locksmith that has the equipment needed to reprogram your key. Some car dealerships provide this service, but their overhead makes them more costly than an independent locksmith.
It can be difficult to get an original key that comes with a chip. The key needs to be cut on a specific machine in order to have the right tracks that can then be used to program the key to your car. It requires specialized software, as well as the appropriate key cutter to do it correctly.
Many auto parts stores are able to copy some of the less complicated chips keys, however you must know the serial number of the original key to ensure the correct information is encoded into the key. Many people make a mistake going to their dealer for the clone of a chip key and end up paying high prices.
Laser-Cut Keys
Laser-cut keys are also known as a sidewinder key due to the distinctive winding cut on the key shank. They add an extra layer of security to your vehicle. They are a fantastic protection against auto theft since they require specialized equipment to duplicate.
Like transponder keys, they feature built-in chips that block unauthorised copies of keys from getting into your car. They have a unique code that needs to be programmed into your car to unlock it and begin it. This additional layer of security is a fantastic method to safeguard your investment and deter thieves who could be trying to steal your vehicle to make parts or sell it on.
Laser-cut keys differ slightly from mechanically-cut keys in terms of design. They have fewer grooves carved out on the key. The shaft of the key is more substantial, which is another sign that this is not a regular car key. Locksmiths usually use milling machines to cut these keys. This tool is similar to a drill, and is designed to remove metal with precise angles.
They're 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. In contrast to traditional keys, they're made using a small piece of steel that is cut into a shape and then cut with a laser in the factory. This kind of key is extremely robust and can endure a lot of wear and tear, making it one of the best options for protecting your vehicle.
Depending on the key, it could fold in the fob or pop out by pressing the button. These kinds of keys are used extensively in German automobiles and provide an extra layer of security against car thieves. They also make it very difficult for a thief to pick or pick-lock your car since the cylinder is extremely tough and difficult to break into.
Smart Keys Keys
Smart keys communicate with the vehicle by using radio-frequency identification (RFID) instead of the traditional single piece carved metal. They have a chip with an individual code, which is encoded on each key. When you open your car's doors or open the trunk, the key sends a signal to the vehicle's computer onboard. The computer will then signal the correct frequency to allow you to start your vehicle.
The chip of the smart key has several security features to guard it from theft. The key emits a low-frequency signal, which will only be detected by your vehicle. If the computer onboard detects this signal, it will transmit a different one which is unique and only your vehicle can comprehend. This stops a tech-savvy criminal from using a pulse generator in order to "fool the system" and make the key work on other vehicles.
In addition to locking and opening the car, some smart keys come with additional features such as storing specific preferences for drivers, remotely opening windows or the sunroof, among others. These features are accessible by activating the proximity sensor on the key fob by pressing a button, or, in some instances it is as simple as twisting a tiny piece of metal inside the key.
Certain key fobs are opened by holding the dead key in a slot, or by placing it near an inductive coil that is located on the dashboard. Some even include an emergency (fully mechanical) key blade that is hidden inside the key to enable this.
To replace a smart key, you'll need a trip to the dealer, who can either purchase the replacement or have it on hand. The dealer will also have to program your new key so that it recognizes your car. But, you can visit a locksmith to have your replacement key fob programmed and replaced. A locksmith will charge more than dealers, but he or she can complete the task faster and at a lower cost.