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Smart Car Key Replacement Smart keys take technology for car keys to the next level. These keys can unlock your doors and start your car at just a click of a button. They can be more expensive than standard key fobs, and are harder to replace. You can purchase a replacement smart key from a local dealership or from a professional locksmith. Both are alike, but offer different services. Keyless Entry System The keyless entry feature of your car provides a superior level of security that allows you to unlock your vehicle and start it without taking the key from your pocket. This is accomplished by transmitting an electronic signal that is received by a device built inside the car's interior. The receiver then activates the doors and begins the engine. A key fob contains an electronic chip that has an identifier unique to it that is linked to your car's receiver. When you put the key in your ignition, the paired pair informs you that you're close to the car and allows the car to open the door and start the engine. If you lose your smart key, it could be a nightmare to replace it. You'll often have to visit your dealer in order to prove ownership. The dealer will then match a new key with your vehicle. In some modern vehicles, it is possible to use an app to replace the key fob. These systems are referred to “keyless entry” and can be used to open and begin the vehicle, as as lock and unlock the doors. This kind of system could be added to the factory remote you already have or as part of a custom security system. It is also popular for corporate and apartment building entrances. Transponder Keys This is a key that has a microchip embedded in it. The chip emits signals when it's close to the ignition in order to activate it. This makes it impossible for anyone without the original key to start your car, helping thwart auto theft. The microchip is equipped with a digital serial number that authenticates the key to the vehicle. When the key is near the ignition, the microchip will send an unintentional radio signal to a specific receiver within the car. It then sends a message to the engine control unit (ECU) to turn on the ignition and begin the car. In addition to having the security benefits Key fobs can also unlock your door locks and let you open the sunroof and windows. It can also be used to switch off your immobilizer that will shut down the engine of your car when the key is pulled out of the ignition. Certain key cards are more complex and have different levels of security. The VATS keys of GM have an anti-theft feature which stops the car from starting in the event that you use the wrong key. This is achieved by having an additional resistor inside the key which has one of 15 possible resistances to be preset. If you're unable to locate your smart key, or it has been lost, a replacement from the dealer is a viable option. This could be expensive and you may have pay a locksmith or an auto 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 or playing around with the keyhole are over. They resemble plastic cards, and include an electronic sensor that connects to the vehicle's computer. They can unlock your vehicle as well as open doors and turn on the ignition without the physical car keys. The initial versions of these keys required drivers to insert them into a slot that an onboard computer would verify the signal. The most modern RFID technology allows cars to be opened and started without having a slot. In reality, you just require the key to be within 1.5 meters of the vehicle. In addition the smart keys will notify you well in advance when the battery is low. You can buy the new key from a locksmith or follow the instructions in your owner's guide to replace it. If you're using a factory-issued remote smart key and want to know how to get a new one by looking through your dealer's inventory or contacting the dealer. If you require a spare, you can buy a compatible aftermarket key from a dealership selling car parts. They can pair it with your current key to avoid expensive dealer charges. It can be used to replace your primary key in the event you lose your primary key. Smart Key Replacement Many newer vehicles come equipped with smart keys that unlock doors and even start the engine. They also perform other functions without needing to physically touch or hold their key fob. The keys communicate with antennas that can detect and recognize the precise signal coming from the key fob. The convenience of a smart key for a car is the main benefit. It makes it less necessary for drivers to mess up their keys as they pull out of their driveways which could lead them to lock themselves outside. It makes the process of entering and starting the vehicle much more quickly by eliminating the need to locate and push buttons on the traditional remote. www.g28carkeys.co.uk of a smart key is its added security. Smart keys emit an encrypted signal that is not like other key fobs. This makes it harder for thieves to duplicate your signal. But, like other kind of car key smart keys could break down or get lost. Fortunately, a locksmith can assist you in replacing your key. They can reprogram the new device so that it connects to your car's computers which allows you to lock and start your car again. All they need is a replacement battery. Open the smart key fob and take out the battery that was in it. Then, you can insert the new battery into the same holder, and match up every edge to the fob, making sure that it's flush with the fob at every point.