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What is a Smart Key Car Key? Smart keys are also known as proximity keys or key fobs. They can be used to unlock doors as well as start engines without a driver needing to insert physical keys. They communicate using radiofrequency signals. key for smart car www.g28carkeys.co.uk helps to keep vehicles safe by stopping hotwiring. Smart keys also transmit unique encrypted signals that prevent them from being used by other vehicles owned by drivers. Convenience You can lock and unlock your vehicle without having to insert the key into the ignition slot. Simply tap the door handle or trunk. Many modern vehicles have the ability to remotely start your engine. This is particularly useful if you're bringing in groceries or transporting equipment and passengers. This technology is designed to protect against theft of vehicles. Smart keys transmit encrypted signals instead of a single frequency, like a standard keyfob. How Stuff Works Electronics explains that it is impossible for other cars to receive and responding the same signal. In addition, some manufacturers employ a computer chip inside the car to detect the unique fingerprints of each key, which helps ensure that only authorized drivers are using it. This is useful should you lend your vehicle to family members and friends. Some smart keys can also store user preferences, so that seat, mirrors, and steering wheel adjustments, as and stereo presets can be set automatically when the key is within range of the vehicle. For added convenience, some smart keys can be set to stop the vehicle from exceeding a particular speed limit when it is activated with a specific key. This is a great way to ensure that new drivers are safe and it's an excellent idea for families with children in the back. Security Traditionally keys were made from metal to open the ignition. With the advent of smart keys it is no longer the case. Smart keys come with a chip that transmits a signal from the antenna to your car. This signal is recognized by the vehicle when the driver presses a button on the handle on the door or trunk release. It is now impossible to lock your keys into your vehicle. The signal that the smart key sends to your car is encrypted, which means that only the owner is able to use it. Most models also disable the engine when the vehicle hasn't been running for several minutes. This feature is particularly useful when you're in a risky location or need to get out of the vehicle for any reason, for instance, at a petrol station. Many systems also have a backup system for opening and starting the car if the battery of the smart keys runs out while you are on a ride. The backup system involves inserting the key into a slot, or holding it close to an area of the cockpit where the energy is transferred to an electric motor. Certain manufacturers offer a mechanical key blade that can be used in an emergency to open the trunk or start the car. Battery Life Many newer cars have keyless entry systems as well as push-button starters. These are controlled by a smart key fob that communicates with the car via proximity technology. These systems use a tiny transmitter that is powered by a lithium coin-sized battery. It will eventually have to be replaced, just like any other battery. Although smart key fobs are designed to last for a long time, they can suddenly lose power. If the fob battery is dead, you won't be able to unlock or start your car even holding it near the front door. It's not uncommon for the transmitter in the smart key to drain the battery. The smart key emits signals each when you press a button. But most of the time it does nothing. The battery of a smart key is large enough to last for a long time. signalling to lock and unlock. The fob will also drain the battery if it is kept near other devices that emit electromagnetic fields like phones and computers. These devices generate their own magnetic field, which can interfere with the fob's own transmitter, causing it to operate more slowly. RepairPal reports that the fob can stop working if it is placed too close to the gadgets. Maintenance Smart keys are different from traditional metal keys in that they use technology to control the locks of your vehicle, as well as perform other functions. It works by transmitting a signal through antennas located inside and outside your vehicle. These antennas detect the fob's signal and connect with the car's computer. The car interprets the signal, which allows you to turn it on or close it without having to use the physical key. New cars are loaded with high-tech electronic features and the fob is now a hub for many of these functions. The most obvious features are locking and unlocking your car, remote start and chirping noises to assist you in finding your car in a parking area. Some fobs also let you store specific settings for different drivers and open windows remotely and sunroofs. The transmitter itself is a sophisticated device with an integrated circuit board, and it is susceptible to damage by repeated use or exposure to heat or cold. The transmitter can break when it is damaged by a fall or a bang and the battery contacts may also be bent. These issues can be challenging to determine and repair. Try using your phone to avoid the issue and see if it works however it's a good idea keep a spare key in your pocket to use in case. You can buy an alternative to the majority of OEM smart keys for up 70 percent less and comes with a 3-year, better-than-OEM guarantee.