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Smart Keys For Cars Smart keys are wireless car remote that works without the traditional mechanical blade and can open doors or pop the trunk from a distance. It also lets you start the vehicle without having to turn a key. The majority of smart phones have battery indicators and warn users in advance of a low battery. Replacing the battery is a simple and easy process that doesn't require any specialized tools. Convenience Smart keys are designed to open doors and trunks, turn on the car engine and start the ignition without having to use a traditional key made of metal. They also have features designed to prevent burglaries and vehicle theft, like a panic button that generates noise to scare away people who may be suspicious of thieves in areas with no security, such as underground garages that are parking. Key fobs can perform all of these functions via a radio transmission between the car key fob and the car using low-power wireless technology. This is a great convenience, particularly for drivers who are often traveling and don't have a lot of time to spare. Smart keys generally look more like plastic cards than actual keys. They are used to unlock the trunk or doors when the button is pressed on the fob. Some of them even have an integrated touchscreen that allows drivers to control certain settings of their vehicle, such as the climate and the audio. The RFID signal that is sent between the key fob and the car is distinct, encrypted, and tied to the computer in the car this makes it virtually impossible for thieves who are tech-savvy to wire a stolen vehicle equipped with one. These fobs can also be programmed to send a different frequency signal each time they're used to ensure that the computer doesn't recognize the old one as the real signal. Security Many people are reluctant to make the switch to digital car keys due to the fact that they worry about security. While having a physical key fob at hand does make you feel more secure, it's crucial to recognize that digital keys are more secure than you think. The digital keys are secured and the signal they transmit to a car can be verified by an onboard computer. This means that even if your smart key fob is compromised the car will not start. Contrary to traditional key fobs smart keys work by using built-in antennas in your vehicle and a radio pulse generator in the key fob to communicate with your vehicle and perform functions such as unlocking and starting it. This technology allows you to gain access to your vehicle without the physical key to insert into the ignition or lock. If you lose your smart key or if its battery dies, most systems offer an alternative method to open and start your car. Emergency starting is achieved by placing the key into a slot or holding it in a certain part of the cockpit where an inductive coil can transfer energy. The majority of smart keys have a low-battery indicator, which will alert you before the key is completely dead. You can replace the battery yourself in the event of a need. Auto-adjusting settings Instead of the physical keys for your car, smart keys use radio waves to unlock and lock the car. They also have the ability to remotely start your engine and track the location of the vehicle in case you lose track of where it's located. Certain smart keys can be programmed to automatically adjust the exterior and interior of the vehicle in accordance with the key it detects. For example it can be detected the type of key you're using and automatically adjust the seat position, mirror settings, and climate control. This is beneficial if you have multiple drivers or need to limit certain features when lending your car to a new driver. Another benefit of smart keys is the fact that they utilize encryption to prevent theft, which isn't possible with traditional keys. This technology makes it extremely difficult for thieves with the latest technology to hijack a vehicle by mimicking an authentic frequency signal, reports How Stuff Works Electronics. Smart keys transmit a unique, encrypted message every time the vehicle's remote or unlocked. Just like any battery-operated device the battery in a smart key will eventually run out of juice. The majority of systems have an emergency system that allows you to open the car and then start it if the battery is not able to function. The emergency procedure varies however, it is usually holding the key within range of the lock sensor or pressing the button on the key which activates the emergency starter. Battery backup Modern smart keys, which are also known as keyless entry systems or passive entry, utilize a transmitter and a receiver to unlock your vehicle. The transmitter is situated inside the key fob that you carry around and the receivers are found in and around your vehicle. As you approach your vehicle, the radio frequency signal from your smart key is interpreted by the receivers, and it activates the ignition and doors. While this system offers many advantages, including not having to search in the dark for keys, it may be vulnerable to certain kinds of attacks. For example, if the key's battery fails or is lost, someone could detect the low frequency transmission signals that are transmitted by your key and open your car, reports How Stuff Works Electronics. smart car key fob replacement www.g28carkeys.co.uk have encrypted signals, making hacking more difficult. If you find that the smart key fob isn't able to perform as it should, it could be due to an issue with interference. In this case you shouldn't place your key in proximity to such devices until the battery in the fob has been replaced. The majority of smart keys will notify you when their batteries are empty and the replacement process is quite simple.