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What Can a Smart Car Key Fob Do For You? Mercedes introduced the first fobs in the year 1998. They are also referred to as smart keys, keyless entry or keyless entry fobs. These fobs controlled by computers are capable of carrying out a variety of tasks like locking and unlocking the car, or beginning it. They work by transmitting an encrypted and rolling message. This protects them from hackers with a technological edge. Safety A smart key fob communicates with a vehicle via radiofrequency waves. It sends out a low-power signal that, upon pressing it, prompts the vehicle unlock doors and start the engine. The car recognizes the unique encrypted code from a particular keyfob. This means that if the keyfob is stolen, the car is unable to start. A new vulnerability allows thieves to exploit this communication. Relay attacks are carried out using devices that transmit at the same frequency as the key fob. How Stuff Works Electronics says that a burglar could slip one of these gadgets into the pocket or hidden area to block the lock command remotely. It's a problem that will become more frequent as more people switch to smart keys. A smart key fob isn't just a security feature, but it can also make your life easier by automatically taking care of the requirements of your vehicle. For instance an electronic key fob linked to your smartphone could detect your location and unlock the doors, meaning that you don't have to press the remote button. It can also tell when you're leaving and automatically lock the car, meaning you don't have to fret about not locking the doors. A lot of smart key fobs also have an indicator for batteries that informs you ahead of time if the battery is running low. car smart key of the battery in most models is a quick, simple process that does not require any special tools. Convenience Unlike a traditional metal key smart keys do not require physical insertion into the ignition slot to unlock or start the vehicle. Rather, the driver simply requires it to be in their possession and bring it within range of the vehicle, as described by the BMW Group. In reality, certain smart keys, such as the Display Key, feature an extremely small LCD touchscreen that enables users to access features such as locking or unlocking as well as keyless start directly from their keys without needing to connect with the car's Bluetooth system. A smart key can also save drivers time by automating the locking of their car doors when they leave. This feature is found in a wide range of automobiles, according to Consumer Reports, and can help get into tight parking spaces without accidentally squeezing something or someone. Open Road Auto Group explains that smart key systems don't transmit the same frequency signal over and over and this could make them more susceptible to relay attacks. In this way, a stolen vehicle cannot be hotwired if it is equipped with a smart-key because the encrypted signal that the key fob transmits is unique to each car. This technology makes it difficult for thieves to steal a car. Security Modern cars come with more high-tech electronic features than ever before, and a few of those are located inside the key fob. These devices do much more than unlock and lock doors, or make chirping noises to assist motorists in finding their car in a parking lot However, some drivers may not be aware of everything that these smart key fobs are able to do. Certain keys, such as example, will trigger the auto windows and sunroofs of the vehicle when they are they are pressed. A auto editor for CR once went out to her Honda Accord only to find all the windows closed and the sunroof opened. She was grateful for her Smart Key that automatically locked the car. According to How Stuff Works, some smart keys use computer encrypted signals to protect against car thieves. This technology can prevent hotwiring in which thieves steal a vehicle's engine controller module (ECM) which is usually located at the front of the engine. The ECM controls many vital functions, including engine power, transmission control and more. Other features of smart keys include anti-theft code and a unique security ID that is assigned to each key, which can turn off the ignition if it's not the right one. The security ID is a number that is transmitted by the ECM from the key to the ignition, and then validated by a sensor located in the car. Maintenance Smart car key fobs do more than simply unlock the door. It can remotely start your engine, trigger suspension and brakes, and even start your car. It can also provide information about your car such as the fuel level and the temperature of your oil. A smart car key fob, as every other electronic device requires regular maintenance to work properly. Modern key fobs feature indicators for the battery that inform the driver that it is time to replace the battery. It's simple to replace the battery and you don't require any special tools. In some cases the smart key could cease to function completely. If you suspect this is the cause attempt to reset the smart key by exiting the vehicle, then returning inside. This will allow the car to detect that the key fob is in the vehicle and let it to be used again. Contact a locksmith if you are unable to get your key fob to function. They can reprogram it to ensure that the car recognizes it once more and allows you to use all of its features. It's usually more cost-effective to do this instead of buying the new fob for your key, and it will save you money in the long run. In some cases locksmiths are able to repair an existing fob to allow it to be used to create an entirely new key. This could save you money in the end.