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Keys Replacement For Cars You can get an alternative key for a mechanical key at any hardware shop. 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 pair them with your vehicle. They can be expensive however many car insurance companies will pay for the cost. Mechanical Keys You can still purchase mechanical keys for your car which you insert into the ignition lock for your vehicle to start. If your car has one of these, replacing the fob and key is relatively inexpensive (if they're lost or stolen). A locksmith can make you new keys at a lower cost than what you purchase from a dealership. You can also have your neighbor or a friend who is proficient in programming transponder keys from the aftermarket (which are less expensive than factory keys) cut you a spare key and then program them. A spare key is crucial because modern cars won't begin when a key is not programmed with the proper chip is used. Transponder keys resemble mechanical keys, but contain an electronic chip within the base. This chip communicates with the computer system in your car. Your car will be able to recognize the code in the chip and accept it, but it will refuse to start if another code is used. If the spare key you have has a chip, you'll need to bring 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 specific dealerships, and it is unlikely that a locksmith will have the equipment needed to create a key that has transponder. It is expensive to replace keys with remotes, particularly if you require a spare. If you have only the key shank missing and a functioning replacement fob you could try reprogramming your fob by yourself. However, it can be time-consuming and difficult. If you've lost the complete fob and the key, however, a dealer is the best option. There are other types of car keys that require a specialized set of skills to replace, like flip keys and smart keys. They're more complicated and need to be replaced by a dealer. Some key fobs have an electronic key that folds into the enclosure and opens doors or is operated by proximity sensors to open and start your vehicle. Transponder Keys If your car was constructed in the past 10 years or so, you're likely to use transponder keys. The keys contain an embedded microchip inside the key and the car's receiver that are both programmed to communicate with each other in order to start the car. Transponder keys are an excellent way to discourage theft because they require two parts in order for the car to be started – the transmitter (transponder) in the key and the receiver that is connected to your immobilizer system. Without both the key and the immobilizer system present, the car will not start and it will be impossible to hotwire. The key chips are programmed with a serial number that is unique to the vehicle you own. When the key is inserted into the ignition the serial number is sent to the immobilizer in the car and verified that it is compatible, it will then allow the engine to run. This security feature can only be overcome by a specific device that can read the chip to match it with a different car. When you have a transponder key replaced you'll need to go to an authorized locksmith who has the equipment needed to reprogram the key to your vehicle. Some car dealerships provide this service, however they are typically more expensive than a independent locksmith due to their expenses. The process of getting a new car keys that comes with a chip it can be a complex process. The key must first be cut using a specific machine to ensure that it has the correct tracks in place which can later be used to program the key to your car. This requires special software and the correct key cutter to be done correctly. Some of the less complicated chip keys can be copied at most auto part stores, but you must 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 mistake of going to their dealer to have their chip key copied, and end up paying more than they have to. Laser-Cut Keys Laser-cut keys, also referred to as sidewinder keys due their distinctive winding cuts to the shank of the key provide an additional layer of security to your vehicle. Because it takes specialized machinery to duplicate these keys, they're a great security measure against auto theft. They also come with built-in chips that prevent unauthorized key copying from starting your car. They also typically have a unique code on the key, which must be programmed for your particular car in order to unlock it and start it. This additional level of security is a fantastic method to safeguard your investment and deter thieves who might be trying to steal your car for parts or to sell it to. Laser-cut keys differ from mechanically-cut keys in terms of design. They have fewer grooves that are carved on the key. They also have a more robust key shaft that is an indication that it's not your typical car key. Generally, locksmiths employ a machine known as a milling tool to cut these kinds of keys. This kind of machine appears much like a drill bit and is designed to remove metal at extremely precise, controlled angles. These are some of the most secure keys you can purchase for your vehicle, since they are extremely difficult to duplicate and can only be cut by a dealer or a licensed locksmith. They're not like traditional keys. spare car key replacement made from a small piece of steel which is made into a code, and then cut with a laser at the factory. This type of key is very durable and is able to stand up to many years of wear and tear and is one of the best options to protect your vehicle. Depending on the key, it could either fold into the fob, or pop out by pressing the button. The keys are typically used in German cars, and provide an extra layer of protection against car thieves. They also make it difficult for thieves to pick or pick-lock your car since the cylinder is extremely durable and hard to break into. Smart Keys In contrast to the traditional single piece of carved metal, smart keys use RFID, also known as radio-frequency identification to connect with the car. They have a chip with an unique code that is encoded on every 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 car. The chip of the smart key is equipped with several security features to protect it from theft. First the key emits a very low-frequency signal that isn't received by any receiver other than your car. If the onboard computer detects this signal, it will prompt another one that is an exclusive sequence that only your car 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 starting the car, certain smart keys also have additional functions like storing specific driver preferences remote opening windows or the sunroof, and more. These can be done by activating the key's proximity sensor, pressing a button on the key itself or, in certain cases, twisting a small metal component inside the key. The majority of these key fobs feature buttons that open the doors on their own, but some have another method of opening them with a slot or by placing the dead key in a spot on the dashboard, where it is able to hold an inductive coil that can transfer energy. Some key fobs have mechanical (fully emergency) key blade in the key. To replace a smart key, you'll need a trip to the dealer, who will either request the replacement or stock it. They'll also have to program the new key to recognize your car. You can also go to a locksmith for your replacement key fob to be programmed and then replaced. A locksmith will charge more than dealers, however, they can complete the task faster and for less.