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Smart Keys For Cars A smart key is a wireless car remote that works without the traditional mechanical blade and can open doors or open the trunk from a distance. It also allows you to start the car without having to turn a key. Most smart keys come with indicators for the battery that warn you of low battery levels in advance. It's easy to replace the battery with no special tools. Convenience Smart keys are designed to open doors and trunks and trunks, turn on the car engine and turn on the ignition without the driver needing to use a traditional key made of metal. They also come with features designed to deter vehicle burglaries and thefts, including a panic key that emits sounds to frighten away potential thieves in isolated areas like garages underground. Key fobs accomplish all of these functions via radio transmissions between the car key fob and your car using low-power wireless technology. This is an excellent option for those who are on the move and do not have much time. A smart key is usually shaped more like a plastic card rather than a key, and it can be used to open the trunk or doors of a car when a button on the fob is pressed. smart keys cars come with a built-in touchscreen to allow users to control certain settings of their vehicle, such as the climate and the audio. The RFID signal sent between the key fob and the vehicle is unique, encrypted and tied to the computer in the car, making it almost impossible for thieves with a technological background to hotwire a stolen vehicle equipped with one. The fobs can also be programmed to send a different frequency signal every time they're used, so that the computer isn't able to recognize the old one as the real signal. Security Many people aren't keen to make the switch to digital car keys because they are concerned about security. While having a traditional key fob on hand may feel safer, digital keys are actually more secure than people believe. They're secure, and the signal that they send to a vehicle is analyzed with a specially-designed onboard computer. The car won't begin in the event that the smart key fob is compromised. Smart keys, unlike traditional key fobs, work by using the built-in antennas of your vehicle to communicate with it and perform basic tasks like unlocking or starting your vehicle. This technology lets you access your vehicle without needing to insert a physical key into the lock or ignition which can be a hassle. Many systems offer an alternative method to start and open your car if you lose your smartkey or battery dies. Emergency starting is achieved by inserting the key into the slot, or by holding it near a particular part of the cockpit where an inductive coil can transfer energy. Additionally, the majority of smart keys have a low-battery indicator that warns you before it completely dies. If necessary, you are able to easily replace the batteries on your own. Auto-adjusting settings Instead of using a physical key rather than a physical key, the smart key uses radio waves to unlock and lock the vehicle. They can also remotely start your engine and track the location of your vehicle in case you don't remember where it's parked. Certain smart keys have settings that automatically adjust the vehicle's interior and exterior depending on the key you've chosen to use. The car will adjust the position of the seat as well as the settings for mirrors and climate control based upon the key that is being used. This is beneficial if you have multiple drivers, or you want to restrict certain features when lending your car to a novice driver. Smart keys also have the benefit of using encryption to protect against theft. This is not a possibility with traditional keys. This technology makes it difficult for thieves with a technological edge to take over a vehicle through using an authentic frequency signal, according to How Stuff Works Electronics. Smart keys transmit a distinct encrypted message each time the vehicle's remote is unlocked. As with any other device powered by batteries the battery of a smart key will eventually deplete its juice. The majority of systems have an emergency system that allows you to open the car's doors and start it if the battery fails. The emergency method is different but usually it involves holding the key within the range of the lock sensor on the car or pressing a key button that activates the emergency starter. Battery backup Modern smart keys, which are also referred to as keyless access systems or passive entry, use a transmitter and receiver to unlock your car. The transmitter is embedded in the key fob you carry around and the receivers are situated in your vehicle as well as around the outside of it. The receivers pick up the radio frequency signal that is sent by your smart key when you get close to your vehicle and open the ignition and doors. This system has many advantages, including not having to hunt in the dark to find keys, however it is susceptible to attacks of a certain type. For instance, if the key's battery fails or is lost, someone could detect the low-frequency transmission signals from your key and unlock your car, according to How Stuff Works Electronics. This is why a majority of smart keys feature encrypted signals that make hacking a challenge. If you notice that the smart key fob does not work as expected, it could be due to an issue with interference. In this instance you should not place your key in proximity to such devices until the battery of the device has been replaced. Many smart keys will notify you when their batteries are depleted and the replacement process is relatively simple.