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What is a Smart Key Car Key? Smart keys are also referred to as proximity keys or key fobs. They function to unlock doors and to start engines without having to insert a physical keys. They communicate via radiofrequency signals. This helps to keep cars secure by blocking hotwiring. Smart keys also transmit unique encrypted signals to block them from being used by vehicles of other drivers. Convenience You can lock and unlock your vehicle without needing to insert the key into the ignition slot. Simply press the handle on the door or trunk. A majority of modern cars also come with a feature that allows you to start your car via the internet. This is especially helpful if you're bringing in groceries or transporting equipment, passengers, or passengers. This technology is intended to prevent vehicle theft. Smart keys send out encrypted signals instead of a single frequency as a regular keyfob does. This blocks other cars from receiving and responding to the same signal. explain how Stuff Works Electronics. In addition, some manufacturers employ a computer chip inside the vehicle that can recognize the unique fingerprint of each key, which helps ensure that only authorized drivers are using it. This is useful should you lend your vehicle to family members or friends. Some smart keys can store user settings, ensuring that the steering wheel, seat mirror, seat, and stereo presets are automatically set when the key is within the range of the car. Some smart keys can also be set up to prevent the vehicle from exceeding a certain speed limit when it is started using that key. This can help keep unexperienced drivers safe and can be useful if you have young children in the back. Security Traditionally keys were made of metal to open the ignition. With the advent of smart key technology this is no longer a requirement. Smart keys have a special chip that sends an electromagnetic signal from the antenna to your car. This signal is then acknowledged 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 transmits to your car is encrypted, which means that only the owner can use it. In addition, most models will disable the engine if it was not launched in the past few minutes. This feature is especially helpful when you're in a risky location or need to get out of the vehicle for reasons of any kind, like at a gas station. There are many systems that also have backup systems 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 an opening, or keeping it near a particular space in the cockpit where the energy is transferred to an electric motor. Some manufacturers have a motorized key blade that can be utilized in a situation of emergency to open the trunk or to start the car. Battery Life Many newer cars have keyless entry and push-button start systems, controlled by a smart key fob, which uses proximity technology to connect with the car. These systems use a tiny transmitter, powered by a coin-sized lithium battery. Like all batteries, it eventually needs replacement. The majority of smart batteries for key fobs last several years However, this doesn't mean that they won't be unable to function and shut down abruptly. A dead key fob means it isn't able to unlock or start your car, even if you keep it close to the front door, and the key fob light is flashing. It is not uncommon to see the transmitter of a smart key drain the battery. The smart key will send the signal each when you press the button. But the majority of time, it doesn't do anything. The battery of a smart key can be used to provide several years of lock/unlock signals. The fob will also drain the battery if you place it close to other devices emitting electromagnetic fields, such as phones and computers. These gadgets emit their own magnetic fields that can interfere with and slow down the fob's transmitter. RepairPal reports that the fob could be inoperable if placed too close to the gadgets. Maintenance Smart keys differ from traditional metal keys because they use technology to control the locks of your car as well as perform other functions. It functions by sending an electronic signal from the fob to antennas in and outside the vehicle. These antennas sense the signal and then communicate with the computer in your car. The car interprets the signal, and allows you to begin or open it without the physical key. New vehicles are loaded with modern electronic features and the fob is now a hub for many of these functions. G28CarKeys are locking and unlocking, remote starting and chirping sounds that help you find your car in a parking spot. Some fobs also let you save specific settings for different drivers, as well as remotely open windows and sunroofs. The fob is a complicated device with an integrated circuit board, and it is prone to being damaged through repeated use or exposure to heat or cold. The transmitter could be damaged in the event of it being hit or dropped or smashed. The contacts on the battery can become bent. These issues can be difficult to determine and solve. You can try using your phone to solve the problem and see if that helps however it's best to keep a spare key in your pocket, just in case. You can purchase an alternative to the majority of OEM smart keys for up 70 percent less and comes with a three-year better-than-OEM warranty.

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