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Smart Car Key Replacement Smart keys are the next step in car key technology. These keys can open your doors and start your car with just a click of a switch. They can cost more than standard key fobs, and are more difficult to replace. You can get a replacement smart car key at your dealership or a professional locksmith. Both are similar, but 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 keys out of your pocket. This is done by sending an electronic signal to a receiver that is in the interior of your car. The receiver opens your vehicle's doors and kicks off the engine. The key fob is an electronic chip that has an unique identifier. It is connected to the receiver of your car. When you switch the key in your ignition, the matching pair of chips signals that you're close to your car and allows the car to open the door and start the engine. It can be a hassle getting your smart key replaced in the event that you lose it. You'll usually need to visit your dealer to verify ownership. They will then pair a new key with your vehicle. Some modern vehicles allow you to use an app on your smartphone to replace the key fob. These systems are referred to “keyless entry” and can be used to open and start the vehicle, as well for locking and unlocking doors. This kind of system could be added to your existing factory remote or as part of a customized security package. It is also a popular feature in apartment complexes and corporate building entrances. Transponder Keys This is a key with embedded microchip. 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 else without the original key to start your car, thus helping to prevent auto theft. The microchip has a digital serial number that authenticates the key to the vehicle. If the key is near the ignition, the microchip sends a low level radio signal to a specific receiver within the car. The chip then transmits the signal to the engine controller unit (ECU) in order to start the car. In addition to having the security benefit keys can also open your door locks and let you open the sunroof and windows. It can also be used to turn off your immobilizer which blocks the engine of your car when the key is pulled out of the ignition. Some more complicated types of chip keys have multiple levels of security. The VATS key of GM comes with an anti-theft feature that stops the car from starting in the event of using the wrong key. This is achieved by using an resistor that has one of 15 preset resistors in the key. A replacement smart key from a dealer is a good option when you can't find your smart keys or in the event that they have been lost. However, this is expensive and you may need to pay a locksmith or a car dealer to program your new key to your car. Smart Keys Smart keys are now available from a few car manufacturers. The days of pressing a keyhole and fumbling around with the keyhole are gone. They look like plastic cards, and come with an electronic sensor that connects to a computer in the vehicle. They can unlock your car, unlock the doors, and turn on the ignition, and all without a physical key. The first version of these keys required drivers to insert them into a slit where an onboard computer checked the signal. However, the most recent RFID technology allows you to start and open cars without the need for a slot. In fact, you only need the key to be within 1.5 meters of the vehicle. Smart keys will also inform you when the battery is low. You can then either buy an alternative from a locksmith or follow the instructions in your owner's manual replace it yourself. You can obtain a replacement smart factory key by calling or browsing the dealer's inventory. You can also purchase an aftermarket key compatible with your vehicle at a parts retailer if you need one as an extra. They will usually join it with your current key to avoid a costly dealer charge. Then, you can use it as a backup in case you lose your main key. Smart Key Replacement Many modern vehicles are equipped with smart keys that can unlock doors and start the engine, as well as perform other functions without having to physically touch or hold their key fob. These keys communicate with antennas that detect and distinguish the specific signal from the key fob. The most obvious benefit of an electronic car key is its convenience. It removes the need to fiddle around with keys every time you exit the driveway. This could lead to drivers locking themselves outside. It makes starting and entering the vehicle much more quickly since it eliminates the need to find and press buttons on the traditional remote. A smart key also provides additional security. While other key fobs can emit the same frequency signal as yours, smart keys send out a unique encrypted signal, making it difficult for thieves who are tech-savvy to detect and use the same signal. Smart keys may, however be damaged or lost as with any kind of car key. Fortunately, a locksmith can assist you in replacing your key. They can modify the new fob so it is connected to the computer system in your car which allows you to lock and start your vehicle again. All they require is an additional battery. Open the smart key fob and remove the battery that was in it. Then, place the new one into the same holder, lining up each edge with the fob to ensure it's level at all points.