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Keys Replacement For Cars If you have a basic mechanical key, you should be able to get a replacement at any hardware store for cheap. The key must be programmed by a dealership or locksmith. Smart keys are more complex and require a visit to the dealer to connect them to your car. These kinds of keys are typically expensive but some insurance companies cover the cost. Mechanical Keys You can still purchase car keys that are purely mechanical, the kind that you put into an ignition lock cylinder, and turn to start your car. If your vehicle is equipped with one of these keys, it's inexpensive to replace the key and fob (if lost or stolen). funny post can create the basic key for you at a cheaper price than you would buy from the dealership. You can also ask a neighbor or a friend who knows how to program transponder keys aftermarket (which are less expensive than keys made by the factory) to cut you a spare and then program it. It is crucial to have a spare key as modern vehicles won't start when the key does not have the proper chip. Transponder keys look like mechanical keys, but they have a hidden electronic chip inside the base of their plastic shape that communicates with the computer system in your vehicle. Your car will accept the code that is on the chip, but it will not start if you choose another code. If your spare key has a chip that is programmed, it will have to be programmed at a dealership. The dealership will need a special machine for both cutting and programming the key. These machines are only available at certain dealerships, and it's unlikely that a locksmith has the equipment needed to create a laser-cut key with a transponder. It's expensive to replace keys using remotes, particularly if you require a spare. If you have only the key shank missing and a working replacement fob, you could try reprogramming your fob by yourself. However, it can be time-consuming and challenging. If you've lost your entire fob and the key however, a dealer is your best bet. There are other types of keys for cars that require a more specialized set of skills to replace, for example flip keys and smart keys. These are more complex and usually have to be replaced at the dealership. Some key fobs have an electronic key that folds into the enclosure and opens a door, or they're operated with a proximity sensor to open and start your vehicle. Transponder Keys Transponder keys are likely to be used in vehicles built within the past 10 years. The keys are equipped with a microchip and the receiver is programmed to communicate with start your car. Transponder keys are a fantastic method to deter theft since they require two parts in order for the car to be able to start – the transmitter (transponder) inside the key and the receiver connected to your immobilizer system. The car won't start without both the key and the immobilizer system. Key chips have an individual serial number specific to your vehicle. When the key is inserted into the ignition the serial number is transmitted to the immobilizer of the car and then verified to make sure it is compatible the number, which allows the engine to start. The only thing that could be a hindrance to this security feature is a device that can detect the chip and match it with another car. You'll need to find a locksmith that has the equipment needed to reprogram your key. Some car dealerships offer this service, however their overheads make them more costly than an independent locksmith. It isn't easy to find a new key with a chip. To program your car, the key must be programmed using a specific machine. This requires specific software and the right key cutter to do it correctly. Most auto parts stores can duplicate some of the more basic chips keys, however you must know the serial number of the original key in order to ensure that the correct data is encoded into the key. Many people make a mistake going to their dealer for the clone of a chip key only to end up paying high costs. Laser-Cut Keys Laser-cut keys are also known as a sidewinder keys due to the distinctive winding cut that is made on the shank of the key. They add an additional layer of security to your vehicle. Because it requires specialized equipment to duplicate these keys, they're an excellent security measure against auto theft. They also come with built-in chips that prevent the copying of keys by unauthorized people from starting your vehicle. They have a unique number that needs to be programmed into your car in order to unlock it and start it. This additional layer of security is a fantastic option to protect your investment and deter thieves who may be trying to steal your vehicle for parts or sell it to. Laser-cut keys differ from mechanically-cut keys in terms of design. They have fewer grooves cut on the key. The shaft of the key is more substantial, which is another indication that this isn't an ordinary car key. Locksmiths usually employ a milling machine to cut these keys. This tool is similar to a drill bit, and it's designed to cut metal with precise angles. These are the most secure keys that you can purchase for your vehicle. They are extremely difficult to duplicate and can only be done be cut by a certified locksmith or dealer. They're not like traditional keys. They're made using a small piece of steel that is made into a code, and then cut with a laser at the factory. This kind of key is extremely durable and is able to stand up to many years of wear and tear which makes it one of the best options to protect your car. Depending on the key, it can fold in the fob or pop out with the click of a button. Keys like this are typically used in German cars and offer an additional layer of protection against car thieves. They also make it very difficult for a thief to pick your vehicle or pick-lock it since the cylinder is extremely durable and hard to break into. Smart Keys Unlike the traditional single piece of carved metal smart keys use radio-frequency identification, or RFID, to communicate with the car. They have a chip with an unique code that is encoded on every key. Whenever you unlock your car's doors, or open the trunk, the key transmits a signal to your car's onboard computer. The computer then will prompt the correct frequency to allow you to start your vehicle. The chip of the smart key comes with a variety of security features that guard against theft. The key emits an extremely low-frequency signal, which can only be detected by your vehicle. If the computer onboard detects this signal it will transmit another one that is unique and only your car is able to understand. This prevents a tech-savvy criminal from using an external generator to “fool” the system and create the key function for 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 are accomplished by activating the key fob's proximity sensor, pressing a button on the key itself, or, in some instances, twisting a small metal piece inside the key. Certain key fobs can be opened by holding the dead key in a slot, or by placing it next to an inductive coil on the dashboard. Some even include an emergency (fully mechanical) key blade hidden in the key to activate this. Replacing a smart lock requires a trip to the dealer, who will either purchase the replacement or stock it. The dealer will also have to program the new key to identify your car. But, you can go to a locksmith shop to have your replacement key fob programed and replaced. A locksmith may cost more than the dealer, but they'll likely be able to finish the job quicker and for less.