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Smart Car Key Replacement Smart keys are the next step in car key technology. These keys can unlock your doors and even start the car at the touch of the button. smart keys G28CarKeys are more expensive than standard key fobs and are harder to replace. You can obtain a replacement smart car key at your dealership or a professional locksmith. Both are similar but offer different services. Keyless Entry System The keyless entry feature that comes with your car provides an advanced level of security that allows you to unlock your vehicle and start it without taking the key from your pocket. It works by transmitting a wireless signal to a receiver built into the interior of your vehicle. The receiver then activates the doors, and it starts the engine. The key fob is equipped with an electronic chip with an identifier unique to it that is connected to the car's receiver. When you switch the key in your ignition, the matched pair indicates that you are close to your car and allows the car to open the door and begin the engine. It can be difficult to get your smart key replaced if you lose it. It is common to visit your dealer to verify ownership. They will then pair an additional key to your car. In some modern vehicles, it is possible to use an application to replace the key fob. These systems, often referred to as “keyless entry”, can be used to open and shut off the car as well as lock or unlock the doors. This kind of system could be installed as an add-on to your factory remote or as part of a security package that is custom-designed. It is also a popular feature in apartment complexes and corporate building entrances. Transponder Keys This is a key with a microchip embedded in it. The chip emits an alarm when it's close to the ignition, which allows it to activate it. This makes it impossible for anyone else without the original key to start your car, thus helping to prevent auto theft. The microchip contains a digital serial code that authenticates the key. When the key is located close to the ignition, the chip emits an extremely low-level radio signal, which a special receiver in the car detects. The signal is then sent to the engine controller unit (ECU) in order to start the car. A key fob is not only a security tool, but it can be used to open your doors and open the windows and sunroof. It can even be used to disable the immobilizer, which shuts down your car's engine when the key is removed from the ignition. Certain keys with chip technology are more complex and have multiple levels of security. For instance, the VATS keys of GM come with an anti-theft feature that stops your car from starting in the event of a wrong key being used. This is done by using a resistor with one of 15 preset resistances in the key. A dealer replacement smart key is a good option if you cannot locate your smart keys, or when they've been stolen. However, this is expensive and you'll need to pay for a locksmith or car dealer to program your new key to your car. Smart Keys The days of fiddling with the keyhole or pressing a button are gone. A few car manufacturers are now offering smart keys as an option. These keys are shaped more like plastic cards, and include an electronic sensor that connects to your vehicle's computer. They can unlock your vehicle, open the doors, and even start the ignition, and all without a physical key. The first versions of these keys required drivers to insert them into a slot where computers onboard would be able to verify the signal. However, the newest RFID technology allows you to start and open vehicles without a slot. In reality, you need the key to be within 1.5 meters of the vehicle. Smart keys will also alert you when the battery is low. You can purchase the new key from a locksmith, or follow the steps in your owner's guide to replace it. If you have a factory remote-controlled smart key, you can find out how to purchase a replacement one by searching your dealer's inventory or calling the dealer. You can also buy a compatible aftermarket car keys from a parts store for those who require one as an extra. They can pair it with your current key in order to avoid costly dealer fees. It can be used as a backup in the event that 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 having to physically touch or hold their key fob. These keys communicate with antennas that can detect and recognize the exact signal from the keyfob. The convenience of having a smart key for cars is the primary benefit. It makes it less difficult to fiddle around with keys every time you pull out of the driveway. This could result in drivers locking themselves out of the vehicle. It also makes entering and starting the vehicle much more quickly by removing the need to locate and press buttons on the traditional remote. Another benefit of having a smart key is its added security. Smart keys emit an encrypted signal that is not like other key fobs. This makes it much more difficult for thieves to copy your key's signal. However, just like any other kind of car key smart keys could become damaged or lost. Locksmiths can repair or replace yours. They can reprogram the new fob to connect to the car's computer so that you can lock it and then start it. All they require is an extra battery. To replace the battery on your smart key fob that you have, open it up and take out the old one. Place the new battery in the same holder. Make sure that the edges of the key fob meet.