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Keys Replacement For Cars If you have a basic mechanical key, you should be able to find a replacement at any hardware store for relatively cheap. This key will need to be programmed either by a dealership or locksmith. Smart keys are more complicated and require a visit from the dealer for the keys to be paired with your car. These types of keys can be costly however some insurance companies will cover the cost. Mechanical Keys You can still buy car keys that are solely mechanical, such as the ones you place in an ignition lock cylinder and turn to start your vehicle. If your car has one of these keys, replacing the key and fob is relatively cheap (if they're lost or stolen). A locksmith can create new keys for less than you would purchase from a dealership. You could also have someone close to you who knows how to program transponder keys that are made for the aftermarket (which are cheaper than keys made by the factory) cut keys for you and program them. It is important to have a spare key as modern cars won't start if the key does not have the proper chip. Transponder keys look like mechanical keys, but they contain a hidden electronic chip embedded in the bottom of their plastic design that communicates with your vehicle's computer system. The car will accept the code in the chip, but it will not start if you try to use another code. If your spare key is equipped with a chip, you'll need to bring it to a dealership to have it programmed. You'll need a specific machine to cut the key and program it. These machines are only available at certain dealerships, and it's not likely that a locksmith will have the equipment needed to create keys that are laser-cut with a transponder. It's costly to replace keys using remotes, particularly if you require a spare. Try reprogramming the fob on your own if you're just missing the shank of the key and have a working replacement fob, but it can be difficult and time-consuming. If you've lost the entire fob and key however, a dealer is your best bet. Other kinds of keys for cars require more specialized skills to replace. These include flip keys as well as smart keys. These are more complicated and need to be replaced by a dealer. Some key fobs feature a spring-loaded key that folds into the enclosure and opens doors or is operated by a proximity sensor to open and start your vehicle. Transponder Keys If your car was constructed in the last 10 years or so it's likely to have transponder keys. The keys contain an embedded microchip inside the key itself and the car's receiver which are both programmed to communicate with one another to start the vehicle. Transponder keys can be a great way of deterring theft, as they require two parts to start a car – the transmitter contained in the key and the receiver that is connected to the immobilizer. The car will not start without both the key and immobilizer system. Key chips have a unique serial number for your vehicle. When the key is inserted into the ignition, the serial number is transmitted to the immobilizer of the car and verified that it is compatible and allows the engine to start. This security feature can only be overcome by a specific device that can read the chip to match it with another car. When you have a transponder key replacement, you'll need to visit an locksmith with the tools needed to reprogram the keys to your car. Some car dealerships offer this service, however they are typically more expensive than an independent locksmith due to their expenses. Finding a new car key that has a chip in it is a complex procedure. To program your car, the key needs to be programmed on a specific machine. This requires specific software and the right key cutter to be done correctly. The majority of 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 encoded into the key. Many people make a mistake visiting their dealer to purchase an exact copy of a chip-key and end up paying high costs. Laser-Cut Keys Laser-cut keys are also referred as a sidewinder keys due to the distinctive winding cut on the key shank. They provide an additional layer of security to your vehicle. These keys are a great deterrent to auto theft because they require special equipment to duplicate. Like transponder keys. They have built-in chips that block unauthorized key copies from starting your vehicle. They also come with a unique code on the key that must be programmed for your particular vehicle to unlock and start it. This extra layer of security will guard your investment, and deter thieves from attempting to steal your car for parts or to sell it. In terms of their design laser-cut keys are different from mechanical cut keys in that they have fewer carved-out grooves on the key. The key shaft is larger, which is a indication that this isn't a standard car key. Locksmiths usually use a milling machine to cut these keys. This tool is similar to a drill bit and it's designed to cut metal at precise angles. They are the most secure keys you can purchase for your vehicle. They're hard to duplicate and can only be done be cut by a licensed locksmith or dealer. They're not made using traditional keys. Instead, they're made of a tiny piece of steel that's shaped according to a code at the factory and then cut with the laser. This type of key is very robust and can stand up to the rigors of wear and wear, making it one of the best options to protect your car. Depending on the key, it could either fold into the fob, or pop out with the click of the button. Keys like these are commonly used in German cars, and provide an extra layer of security against car thieves. The cylinder is also very tough and difficult to break into, making it extremely difficult for a thief pick or pick-lock the vehicle. Smart Keys Keys Unlike the traditional single piece of metal, smart keys use RFID, or radio-frequency identification, to communicate with the car. This means they come with a tiny chip that contains an encrypted code that is unique to each key. The key transmits a message to the onboard computer in your vehicle whenever you unlock the doors or open the trunk. The computer will then signal the right frequency that allows you to start your car. The chip of the smart key includes a variety of security features that guard against theft. The key emits an extremely low-frequency signal, which can only be detected by your car. If the computer onboard detects this signal, it will send a different one which is unique and only your car is able to understand. This will stop a criminal with a high-tech background from using an external generator to “fool” the system and perform the work for other vehicles. In addition to locking and starting the car, certain smart keys have special features such as storing particular driver preferences remotely opening windows, the sunroof, among others. These are accomplished by activating the key fob's proximity sensor by pressing a button on the key or, in some instances, by twisting a tiny metal part 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. Certain key fobs come with mechanical (fully emergency) key blade in the key. Replacing a smart lock typically requires a visit the dealership, where they will either have the replacement on hand or order it for you. They'll also need to program the new key to recognize your car. You can also visit a locksmith for your replacement key fob to be programmed and then replaced. key replacements will cost more than dealers, but they will complete the task faster and cheaper.