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Smart Keys For Cars Smart keys are wireless car remote that functions without the traditional mechanical blade and can unlock doors or pop the trunk from the distance. It can also be used to start the car without turning the key. Most smart keys have indicators for batteries that alert you to an empty battery ahead of time. Replacing the battery is an easy and simple procedure that doesn't require any specialized tools. Convenience Smart keys are designed to open doors and trunks as well as turn on the vehicle's engine and start the ignition without needing to use a traditional key made of metal. They also have features that help deter vehicle burglaries and thefts, such as the panic key that makes noises to frighten potential thieves in areas that are not accessible to them, like garages underground. Key fobs fulfill all of these functions by sending an audio signal between the car key fob and the car, using low-power wireless technology. This is a wonderful feature for drivers on the move who do not have much time. A smart key is usually designed to look more like a plastic card than a key, and it can be used to open the trunk or car's doors when the fob's button is pressed. Some of them even have built-in touchscreens that allow drivers to control certain settings of their vehicle, such as the climate and the audio. smart key car www.g28carkeys.co.uk that is sent between the key fob to a car is unique, secure and connected to the onboard computer, making it almost impossible for hackers with the latest technology to wire a stolen vehicle equipped with one. They can also be programmed to send a different frequency signal every time they're used, to ensure that the computer doesn't recognize that old one as the authentic signal. Security Many people are hesitant adopt digital keys as they are worried about security. While having a tangible key fob to hand does feel more secure, it's important to know that digital keys are more secure than you think. The digital keys are encrypted and the signal they send to a car can be verified by an onboard computer. The vehicle won't start if the smart key fob is stolen. In contrast to traditional key fobs smart keys use built-in antennas in your vehicle and a radio pulse generator in the key fob that allows it to communicate with your vehicle and perform functions such as unlocking and starting it. This allows you to access your vehicle without the need to insert keys that are physically placed in the ignition or lock which can be an issue. Most systems offer an alternative method to start and open your car in the event that you lose your smartkey or battery dies. Emergency starting can be accomplished by inserting the key into a slot or holding it in a certain area of the cockpit where an inductive coil can transfer energy. Additionally, most smart keys have a low-battery indicator that warns you before it completely dies. If necessary, you can easily replace the batteries yourself. Auto-adjusting settings Instead of the physical keys for your car smart keys make use of radio waves to unlock and lock the vehicle. They can also remotely start your engine and keep track of the vehicle's location in case you don't remember where it's parked. Certain smart keys come with settings which automatically adjust the vehicle's interior and exterior depending on which key is detected. The car can adjust seat position, mirror settings and climate control based on the type of key used. This is beneficial if you have multiple drivers or need to restrict certain features when you loan your car to an inexperienced driver. Smart keys also have the advantage of encryption, which can prevent theft. This isn't possible with traditional keys. This technology makes it very difficult for tech-savvy criminals to hijack a car by imitating a valid signal as reported by How Stuff Works Electronics. Smart keys send a distinct, encrypted signal every when the vehicle is unlocked or remotely opened. As with any other device powered by batteries the battery of a smart keys will eventually be depleted of power. The majority of systems have an emergency system that allows you to open the car and begin it if the battery is not able to function. The emergency method can vary however, it is usually keeping the key within the proximity to the sensor for the lock on the car or pressing a button that triggers the emergency starter. Battery backup Modern smart keys, often referred to as keyless entry systems or passive entry, make use of a receiver and transmitter to unlock your vehicle. The transmitter is integrated into the key fob is carried with you and the receivers are situated inside your vehicle and around the outside. When you approach the vehicle the radio frequency signal from your smart key is detected by the receivers and triggers the doors and ignition. Although this system has many advantages, including the ability to not have to fumble in the dark to find the key, it can be vulnerable to certain kinds of attacks. How Stuff Works Electronics reports that if a key's battery goes out or is damaged the person who has it could detect the low-frequency transmission signal and open your vehicle. This is the reason why many smart keys feature encrypted signals to make hacking difficult. However, these systems could be affected by electromagnetic fields produced by cell phones, computers and other devices, so if you notice that your smart key fob isn't functioning properly, it could be due to an interference problem. In this instance, you should not put your key near a device until the fob's battery has been replaced. Many smart keys will notify you when their batteries are empty and the replacement procedure is fairly simple.