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What Can a Smart Car Key Fob Do For You? They are also known as fobs, keysless entry or smart keys, they were introduced by Mercedes in 1998. They are computer-controlled and capable of performing various tasks like locking and unlocking the car or getting it started. They work by broadcasting an encrypted and rolling signal. This protects them from thieves who are tech-savvy. G28 Car Keys that communicates continuously with the vehicle via radiofrequency waves. It sends a low-power signal that, when pressed tells the car to unlock doors and begin its engine. The car recognizes the encrypted code from a specific key fob. This means that even in the event that the key fob gets stolen, it isn't used to start the car. But a new form of hacking technique can allow thieves to exploit that communication. Relay attacks are carried out with devices that transmit at the same rate as the key fob. The thief could place 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 drivers are switching to smart keys. Apart from these security features, an intelligent key fob could make life easier by automatically taking care of your vehicle's needs. A key fob that is connected to your smartphone, for instance, can detect your presence and open the doors so you do not have to hit the remote button. It also can detect the moment you leave and automatically lock the vehicle, so you don't have worry about forgetting to lock the doors. Many smart key fobs have an indicator for batteries that informs you well in advance when the battery is running low. Most models allow you to replace the battery quickly and easily, without the need for any special tools. Convenience Smart keys do not have to be physically inserted in an ignition slot to unlock or start the vehicle. Instead, the driver must have it on their person and be able to bring it within range of the vehicle, as explained by the BMW Group. In fact, some smart keys, including the Display Key, come with tiny LCD touchscreen that enables users to access features like locking or unlocking and keyless start directly from their key fobs without needing to connect with the car's Bluetooth system. Another way that smart keys can help drivers save time is by automating the process of locking their doors when they leave. This feature is offered in a variety of automobiles, according to Consumer Reports, and can also make it easier to navigate through parking spaces that are tight without accidentally squeezing something or anyone. Additionally, smart key systems do not typically transmit the same frequency signal over and over in order to make them more susceptible to relay attacks, as explained by Open Road Auto Group. Smart keys are unique to each vehicle, which means that a stolen car can't be wired. This technology makes it incredibly difficult for thieves to steal a vehicle. Security The latest cars are equipped with more high-tech electronic features than ever before, and some of them are housed inside the key fob. These devices are capable of more than locking and unlocking doors, or making chirping sounds to assist drivers locate their vehicle in parking lots. However many owners are unaware of the full capabilities. For instance, certain smart keys can turn on windows that are automatically opened and sunroof if they are hit. A auto editor from CR once walked out to her Honda Accord only to find all the windows closed and the sunroof up. That's one of the reasons she was so grateful for her Smart Key, which locked the vehicle automatically. Certain smart keys utilize computer-encrypted signals to thwart car thieves according to How Stuff Works. This technology prevents hotwiring, which is when thieves steal the vehicle's engine control unit (ECM), which is usually found in the front of the engine block. The ECM regulates a variety of essential functions, including engine power and transmission control. Smart keys also have anti-theft code and a unique ID security code assigned to each key. This could stop ignition when the wrong key is used. The security ID is a code that is transmitted by the ECM from the key to the ignition, followed by verification by a sensor inside the car. Maintenance Smart car key fobs do much more than unlock the door. It can start your engine and operate the brakes and suspension remotely. It can also provide information about your vehicle including fuel level and the temperature of your oil. Like all electronic equipment, a smart car key fob needs regular maintenance to operate effectively. Modern key fobs come with battery indicators to alert the driver when it is time to replace the battery. Replacing the battery is an easy procedure, and no specialist tools are required. In some cases, however, a smart key can stop working completely. If you suspect that this is the case, attempt to reset it by getting out of the vehicle and then re-entering it. This will enable the car to understand that the key fob is still in the vehicle and let it to be used again. If you can't connect your fob, contact a locksmith to help. They can reprogram the fob so that it can be recognized by your car and you are able to use all of its features. It's typically more affordable to do this than buying a new key fob and it could save you money in the long run. In some cases the locksmith may fix an existing fob to allow it to be used to make new keys. This can save you even more money in the end.