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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 start your car at a simple push of a switch. They can be more expensive than standard keys and are harder to replace. You can get a replacement smart car key from your dealer or a professional locksmith. Both are the same, but provide different services. Keyless Entry System The keyless entry system that is installed in your car is a sophisticated security feature that lets you unlock and start your car without taking the key out of your pocket. This is accomplished by transmitting the wireless signal to a receiver built into the interior of your car. The receiver then activates the doors, and it starts the engine. A key fob has an electronic chip that is equipped with an unique identifier coupled to the receiver of your car. When you turn the key into your ignition, the pair signals that you are near to the car and allows the car to open the door and start the engine. It can be difficult getting your smart key replaced in the event that you lose it. You will often need to visit your dealer in order to verify ownership. They can then pair an additional key to your vehicle. Some modern vehicles allow you to use an app for your smartphone to replace the key fob. These systems are referred to “keyless entry” and can be used to open and begin the vehicle, as well being able to lock and unlock doors. This kind of system is available as an upgrade to the factory remote, or as part of a security package that is customized. This system is also popular at apartment complexes and corporate buildings. Transponder Keys Basically, this is car keys that have a microchip embedded in it. The chip emits an electrical signal when it's close to the ignition, which allows it to activate it. This makes it impossible for anyone who does not have the original key to start your car, helping to prevent auto theft. The microchip contains a digital serial number that authenticates the key to the vehicle. When the key is near the ignition, the microchip transmits a low level radio signal to a specific receiver inside the car. The chip then sends a signal to the engine control unit (ECU) to turn on the ignition and start the car. In addition to having the security benefit Key fobs can also unlock your door locks and let you open windows and the sunroof. It is also able to switch off the immobilizer which shuts down your car's engine when the key is removed from the ignition. Some more complicated types of keys with chip technology have several levels of security. GM's VATS key has an anti-theft function that stops the car from starting when you use the incorrect key. smart keys G28 Car Keys is done by using a different resistor in the key that has one of the 15 preset resistances. If you're unable to locate your smart key, or it is lost, obtaining an alternative from a dealer is a viable option. It can be expensive and you might have to pay a locksmith or a car dealer to reprogram the new key. Smart Keys The days of fumbling with the keyhole or pressing a button are gone. A handful of car manufacturers now offer smart keys as an option. These keys are shaped like plastic cards and feature an electronic sensor that connects to your vehicle's computer. They can unlock your car and open the doors and start the ignition with the use of a physical car key. The initial versions of these keys required drivers to insert them into a slot where an onboard computer would check the signal. The latest RFID technology allows cars to be opened and started without the need for a slot. You only need to have the key within 1.5 meters. In addition the smart keys will notify you ahead of time when the battery is low. You can either purchase the new key from a locksmith or follow the steps in the owner's manual to replace it. You can order a replacement smart factory key by calling or searching the dealer's inventory. If you need an extra key, you can also purchase a compatible aftermarket key from a dealership selling car parts. They will usually pair it with your current key to avoid paying a dealer charge. You can then use it as a backup key in case you lose your primary key. Smart Key Replacement Many newer vehicles come equipped with smart keys that unlock doors and start the engine, as well as perform other functions without a driver having to physically touch or even hold their key fob. These keys communicate with antennas that detect and identify the specific signal that comes from the key fob. The convenience of a smart key for a car is the main benefit. It removes the need to fiddle around with keys every time you pull out of the driveway. This can cause drivers to lock themselves outside. It also makes stepping into and starting the vehicle much faster by not having to locate and press buttons on traditional remotes. Another benefit of a smart key is its enhanced security. Smart keys emit an encrypted signal that is not identical to other key fobs. This makes it harder for thieves to duplicate your signal. Smart keys may, however be damaged or lost, just like any type of car key. Fortunately, a locksmith can help you replace your key. They can reprogram the new fob to connect to the computer in your car to allow you to lock it and start it up again. All they need is an additional battery. To replace the battery in your smart key fob that you have, open it and remove the old one. Insert the new battery into the same holder. Make sure that the edges of the key fob are level.