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What Can a Smart Car Key Fob Do For You? Mercedes introduced the first fobs in 1998. They are also referred to as smart keys, keyless entry or keyless entry fobs. These computer-controlled key fobs can accomplish a variety of tasks, such as locking and unlocking a vehicle and also starting it. They transmit an encrypted stream. This makes them more secure to cyber-savvy thieves. Safety A smart key fob continually communicates with vehicles using radiofrequency signals. It transmits a low-power signal that, when pressed signals the car to unlock doors and start its engine. The car is programmed to recognize the unique encrypted code of a particular key fob. This means that even in the event that the key fob gets stolen, it cannot be used to begin the car. But a new type of hacking can let thieves exploit this communication. Relay attacks use devices which transmit on the same frequency as the key fob. How Stuff Works Electronics says that thieves could put one of these devices into an unnoticed pocket or a hidden location to block the remote control of the lock. It's a problem that could become more commonplace as more drivers switch to smart keys. A smart key fob isn't just a security device but can also simplify your life by automatically taking care of the needs of your vehicle. A key fob linked to your smartphone, for example can detect your presence and open the doors, meaning you don't need to push the remote button. It could also detect that you're leaving the car and close it, so you don't forget to lock your doors. Many smart key fobs also have an indicator of the battery that tells you ahead of time when the battery is running low. And replacing the battery in most models is a quick and easy process that doesn't require any special tools. Convenience Smart keys do not have to be physically inserted into an ignition slot to open or start the car. Instead, the driver has to put it on their hands and bring it within range of the vehicle, as described by the BMW Group. In reality, some smart keys, including the Display Key, have an extremely small LCD touchscreen that enables drivers to access features such as locking, unlocking, and keyless start right from their keys without needing to connect with the car's Bluetooth system. A smart key can save drivers time by automating the closing of their car doors after they leave. This feature is available in a number of vehicles, as per Consumer Reports, and can also help maneuver into tight parking spots without accidentally squeezing something or the person. Additionally, smart key systems usually do not send the same frequency signal over and over which could make them more vulnerable to relay attacks, explains Open Road Auto Group. Smart keys are specific to each vehicle so a stolen car cannot be wired. This technology makes it extremely difficult for thieves to steal a vehicle. Security A few of the most advanced electronic features in today's modern automobiles are contained in the key fob. These devices are capable of more than just locking and unlocking doors, or making chirping noises to help motorists locate their car in parking areas. However, some owners may be unaware of the full capabilities. For instance, certain smart keys are able to activate windows that are automatically opened and sunroof when hit. A CR auto editor once walked out to her Honda Accord only to find all the windows closed and sunroof open. That's one of the reasons she was grateful for her Smart Key, which locked the vehicle automatically. smart car key fob programming G28CarKeys use computer-encrypted signals to deter car thieves according to How Stuff Works. This technology stops hotwiring, which is when thieves steal the engine control module (ECM) which is typically located on the front of the engine block. The ECM is responsible for a variety important functions, including transmission control and engine power. Other technologies used in smart keys include anti-theft encryption and a security ID unique to each key, which can turn off the ignition if it's not the correct one. The security ID is a unique code that's sent from the ECM to the key once it's put into the ignition. It is then confirmed by a sensor in the car. Maintenance Smart car key fobs do more than simply unlock the door. It can remotely start your engine, operate the brakes and suspension and even start your vehicle. It also can provide information about your vehicle, such as fuel level and temperature of the oil. A smart car key fob, just like every other electronic device requires regular maintenance to function efficiently. The majority of modern key fobs have indicators for batteries that inform the driver when the battery is running low. It's simple to replace the battery, and you don't require special tools. In certain instances the smart key might cease to function completely. If you suspect that this is the case, try to reset it by getting out of the car and returning to the vehicle. This will allow the car to recognize that the fob is still in use and allow it to regain functionality. Contact a locksmith in the event that you have trouble getting the key fob to work. They can reprogram it to ensure that the car can recognize it once more and allows you to use all of its functions. It's generally more economical to do this instead of buying the new fob for your key, and it could save money in the long run. In some cases, the locksmith can repair an existing key fob in order to be able to swap it for a new one. This can save you money in the end.