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Keys Replacement For Cars You can purchase an alternative key for a mechanical key at any hardware store. However, this key will need to be programmed by a locksmith or dealer. Smart keys are more complicated and require a visit to a dealer to pair them with your car. These types of keys are typically expensive however some insurance companies will cover the cost. Mechanical Keys You can still purchase mechanical keys for your car, the ones that you put into an ignition lock cylinder to start your vehicle. If your vehicle is equipped with one of these, it's relatively inexpensive to replace the key and fob (if lost or stolen). car key replacement fob can make you a new basic key for less than you would purchase from a dealership. You can also ask a neighbor or friend who knows how to program transponder keys aftermarket (which are less expensive than factory keys) to cut you a spare and then program it. It is essential to have a spare key as modern vehicles won't start if the key does not have the right chip. Transponder keys look a lot like mechanical keys, but they are actually equipped with an electronic chip inside the base of their plastic shape that communicates with the computer system in your vehicle. The car will accept the code in the chip, but it will not start if you use another code. If your spare key has chips, you'll have to take it to a dealership to have it programmed. The dealership will need an equipment that is specifically designed for cutting and programming the key. These machines are only available at certain dealerships. It is unlikely that a locksmith will have the equipment necessary to create a key that has a transponder. It is expensive to replace keys with remotes, especially if you require an extra. If you only have the key shank missing and an operational replacement fob, you could try reprogramming your fob on your own. However, it can be time-consuming and challenging. If you've lost your entire fob and key, however it's best to contact a dealer as the best option. Other types of keys for cars require more specialized skills to replace. These include flip keys as well as smart keys. They are more complicated and typically need to be replaced at the dealership. Some key fobs feature a spring-loaded key that folds into the enclosure and opens doors or is operated by proximity sensors to open and start your car. Transponder Keys Transponder keys are likely to be used in vehicles built in the past 10 years. These keys have an embedded microchip inside the key and the car's receiver that are both programmed to communicate with one another to start the car. Transponder keys are a fantastic method to deter theft since they require two parts for the car to be able to start – the transmitter (transponder) in the key and the receiver that is connected to your immobilizer system. The car will not start without both the key and the immobilizer system. The key chips are programmed with a serial number that is unique to the vehicle you own. The serial number of the key is transmitted to the immobilizer in the car, and then checked to match. If it does the engine starts, it will. This security feature can only be defeated by a special device that reads the chip and match it with a different car. You'll require a locksmith that has the equipment needed to reprogram your key. Some car dealerships offer this service too, but they are typically more expensive than a private locksmith due to their expenses. The process of getting a new car keys that comes with a chip it can be a complex procedure. To program your car, the key has to be programmed on a special machine. This requires special software and the correct key cutter in order to be done correctly. Some of the less complicated chip keys can be copied at a variety of auto parts stores, but you need to be aware of the serial number of the original key to ensure that the proper information is being programmed into the new key. Many people make the error of visiting their dealer to get a chip key copied, and end up paying more than they need to. Laser-Cut Keys Laser-cut keys, also known as sidewinder keys due to their distinctive winding cuts to the shank of the key they add a layer of security to your vehicle. They are a fantastic deterrent to auto theft because they require specialized machinery to duplicate. They also have built-in chips to stop unauthorized key copying from starting your vehicle. They come with a unique code that must be programmed into your car in order to unlock it and begin it. This extra layer of security will protect your investment, and deter thieves from attempting to steal your vehicle for parts or to resell it. Keys cut with lasers differ slightly from mechanically cut keys in terms of design. They have fewer grooves that are carved on the key. They also have a thicker key shaft that is an indication that it's not a regular car key. Locksmiths usually employ milling machines to cut these keys. It's akin to a drill bit, and it's designed to cut metal with precise angles. They're among the most secure keys you can buy for your car, because they're very hard to replicate and only cut by the locksmith who is a certified dealer. They're not created using traditional keys. Instead, they are constructed from a small piece of steel that's shaped according to form a code in the factory and then cut with the laser. This kind of key is able to endure a lot of wear and tear and is one of the best options for protecting your vehicle. Depending on the key, it will either fold into the fob or be released by pressing a button. These types of keys are typically used in German cars and offer an additional layer of security against car thieves. They also make it difficult for a thief to pick your vehicle or pick-lock it, as the cylinder is extremely durable and is difficult to break. Smart Keys Keys Unlike the traditional single piece of carved metal smart keys make use of radio-frequency identification, or RFID, to communicate with the car. This means that they are equipped with a tiny chip that contains an encrypted code that is unique to each key. The key sends a signal to the onboard computer in your vehicle each time you unlock the doors or open the trunk. The computer then prompts the right frequency which allows you to open your car and begin it. The chip of the smart key is equipped with several security features to protect it from theft. First the key emits a low-frequency signal that can't be detected by any receiver other than your car. If the onboard computer detects this signal, it will display another one that is a unique sequence that only your vehicle can recognize. This prevents a tech savvy criminal from using an electronic pulse generator to “fool the system” and perform the work on other vehicles. In addition to locking and opening the car, some smart keys have special features like storing specific driver preferences remotely opening windows, the sunroof, and many more. These features are accessible by activating the proximity sensor on the key fob by pressing a button, or, in some cases, by twisting a small piece of metal inside the key. Certain key fobs are opened by placing the dead key in a slot or by placing it next to an inductive coil on the dashboard. Some key fobs feature a mechanical (fully emergency) key blade that is inside the key. Replacing a smart lock usually requires a visit to the dealer, who will either have the replacement on hand or order it for you. The dealer will also need to program your new key to recognize your vehicle. But, you can go to a locksmith shop to have your replacement key fob programmed and replaced. A locksmith may cost more than a dealer however, they can do the job faster and for less.