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What Can a Smart Car Key Fob Do For You? Mercedes introduced the first fobs in 1998. They are also known as smart keys, keyless entry or keyless entry fobs. These key fobs controlled by computers can perform many tasks, including locking and unlocking a vehicle as well as launching it. They transmit an encrypted message that is continuously transmitted. This keeps them safer from tech-savvy thieves. Safety A smart key fob is constantly communicating with a vehicle through radiofrequency waves. It transmits a low-power signal that, when pressed, tells the car to unlock doors and start the engine. The car recognizes the unique encryption code from a specific key fob. This means that even if the key fob is stolen, it isn't used to begin the car. However, a new kind of hacking could allow thieves to exploit that communication. Relay attacks utilize devices that transmit on the exact frequency as the key fob. Thieves can put one of these devices in a pocket or hidden location to thwart the lock command from a distance, says How Stuff Works Electronics. This is a problem that could become more frequent as more and more drivers are switching to smart keys. A smart key fob is not just a security device however, it can simplify your life by automatically taking care of the requirements of your vehicle. A key fob that connects to your smartphone, for example, can detect your presence and allow you to unlock the doors so that you do not have to hit the remote button. It can also tell the moment you leave and automatically lock the car, so you don't have to fret about not locking the doors. A lot of smart key fobs have a battery indicator that warns you well in advance when the battery is running low. And replacing the battery in most models is a straightforward, easy procedure that doesn't require any special tools. Convenience Smart keys are not required to be physically placed in an ignition slot to unlock or start the car. Instead, the driver has to put it on them and bring it within the range of the vehicle, as described by the BMW Group. Certain smart keys, such as the Display Key, come with an incredibly small LCD touchscreen that gives drivers to access features such as locking, unlocking and keyless start directly from their key fob without the need to connect to the Bluetooth system in the car. Another way that smart keys can save drivers time is by automatizing the process of locking their car doors when they leave it. This feature is available in a variety of vehicles, according to Consumer Reports, and can also make it easier to move into parking spots that are tight without accidentally squeezing something anyone. Open Road Auto Group explains that smart key systems do not transmit the same frequency signal over and over in order to make them more susceptible to relay attacks. Smart keys are unique to each vehicle, which means that a stolen car can't be connected to a hotwire. This technology makes it incredibly difficult for thieves to steal a vehicle. Security Today's newer cars pack in more high-tech electronic features than ever before, and many of them are contained in the key fob. These gadgets are capable of much more than simply locking and unlocking doors, or making chirping sounds to help drivers locate their car in parking spaces. However, some owners may be unaware of the full capabilities. Some smart keys, for instance, can trigger the automatic windows and sunroof of an automobile when pressed. More Tips at CR walked into her Honda Accord to find the windows all down and the sunroof open. That's one of the reasons she was so grateful for her Smart Key, which locked the vehicle automatically. Some smart keys employ computer-encrypted signals to thwart car thieves According to How Stuff Works. This technology can prevent hotwiring in which thieves steal the engine controller module (ECM) typically located at the front of the engine. The ECM is responsible for many important functions like engine power, transmission control and many more. Other smart keys' features include anti-theft codes and an individual security ID assigned to each key, which can block the ignition if it's not the right one. The security ID is a special code that's transmitted from the ECM to the key once it's put into the ignition and then confirmed by a sensor in the car. Maintenance A smart car key fob does more than just unlock your door. It can start your engine and operate suspension and brakes remotely. It also provides information about your car such as the level of your fuel and the temperature of your oil. A smart car key fob, as any other electronic device requires regular maintenance in order to function efficiently. Modern key fobs include indicators for the battery that inform the driver when it's time to replace the battery. Replacing the battery is a straightforward procedure, and no specialist tools are required. In some cases the smart key could stop working completely. If you suspect this to be the case, you can reset it by leaving the vehicle and then coming back inside. This will help the car recognize that the fob is in place and allow it to regain functionality. If you can't get your fob to work call a locksmith assist. They can reprogram it so that your car recognizes it and allows you to utilize all of its features. It's generally cheaper to do this instead of buying a new key fob, and it can save you money in the end. In some cases, a locksmith can repair an existing key fob to be able to exchange it as a replacement. This can help you save more money in the long run.