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Smart Car Key Replacement Smart keys take car key technology an extra step. These keys can open your doors and start your car at a simple push of a button. These keys can be more expensive than standard key fobs, and are more difficult to replace. You can buy a new smart key from your local dealership or through a professional locksmith. Both are similar, however, they provide different services. Keyless Entry System The keyless entry system of your car is an advanced security feature that allows you to unlock and start your vehicle without taking the key from your pocket. This is accomplished by transmitting an electronic signal to a receiver embedded into the interior of your car. The receiver then opens your vehicle's doors and kicks off the engine. A key fob has an electronic chip that is equipped with an identifier unique to it that is connected to the car's receiver. When you turn the key in the ignition and the matched pairs detect that you're near to the car. The car will then open the door or start the engine. If you lose your smart key, it may be a challenge to get it replaced. Most of the time, you'll need to visit the dealer to provide proof of ownership. They will then pair an additional key to your car. Certain vehicles of the present allow the use of an app on your phone to replace the key fob. These systems are known as “keyless entry” and can be used to open and begin the vehicle, as in locking and unlocking the doors. This kind of system is available as an upgrade to the factory remote, or as part of a custom security package. It is also used in apartment complexes and corporate building entrances. Transponder Keys It is basically an ignition key for cars that has a microchip built right into it. The chip emits a signal when it is close to the ignition in order to activate it. This makes it impossible for anyone to start your car without the original keys, which helps prevent car theft. The microchip is a digital serial code that authenticates the key. When the key is near to the ignition, the chip sends an low-level radio signal which a special receiver inside the car detects. It then sends a message to the engine control unit (ECU) to turn on the ignition and begin the car. In addition to the security benefits Key fobs can also unlock your door locks and allow you to open the windows and sunroof. It can also be used to turn off the immobilizer, which disables your car's engine when the key is removed from the ignition. Some chip keys are more sophisticated and come with multiple levels of security. The VATS key from GM has an anti-theft feature which stops the car from starting if you use the wrong key. This is done by using the key's resistor, which has one of 15 preset resistors within the key. A replacement smart key from a dealer is a good option if you cannot find your smart keys or should they be lost. It can be expensive and you may need pay a locksmith or a car dealer to reprogram the new key. Smart Keys Keys Smart keys are now offered by a number of car manufacturers. The days of pressing a keyhole and fiddling around with the keyhole are over. They resemble plastic cards and contain an electronic sensor that connects to the vehicle's computer. smart car key fob replacement can unlock your vehicle, open the doors and start the ignition, all without a physical key. The original version of these keys required drivers to insert them into a slot where an onboard computer confirmed the signal. However, the most recent RFID technology makes it possible to start and open cars without the need for a slot. In reality, you just need the key to be within 1.5 meters of the vehicle. In addition smart keys will notify you ahead of time when the battery is depleted. You can then purchase the replacement from locksmiths or follow the procedure in the owner's manual to replace it yourself. If you're using a factory-issued remote smart key you can learn how to obtain a new one by searching the dealer's inventory or calling the dealer. You can also purchase an aftermarket key compatible with your vehicle at a parts retailer should you require one for a spare. They can pair it with your current key in order to avoid costly dealer fees. It can be used as a backup key in case you lose your primary key. Smart Key Replacement Many modern vehicles are equipped with smart keys that can unlock doors, start the engine and perform other functions without a driver needing to physically touch or even hold their key fob. They communicate with antennas in the car that recognize an exact signal from the key fob. The convenience of having a smart key for cars is the main benefit. It eliminates the need to fumble around with keys when you exit the driveway. This could lead to drivers locking themselves out of the vehicle. It also makes starting and entering the vehicle a lot faster because it doesn't require you to find and push buttons on a traditional remote. Smart keys also offer added security. Smart keys emit a unique encrypted signal that is not like other key fobs. This makes it difficult for thieves to copy your key's signal. However, just like any other type of car key smart keys can be damaged or lost. Locksmiths can repair or replace yours. They can reprogram the new fob to connect to the car's computer to allow you to lock it and then start it. All they require is an extra battery. To replace the battery in your smart key fob, open it and remove the old one. Insert the new battery into the same holder. Make sure that the edges of the key fob meet.