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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. smart car key replacement controlled by computers can perform a variety of functions, including locking and unlocking a car as well as launching it. They work by transmitting an encrypted and rolling message. This helps protect them from hackers with a technological edge. Safety A smart key fob is constantly communicating with a vehicle via radiofrequency waves. It sends out a low-power signal that, when pressed tells the car to unlock doors and start the engine. The car is programmed to recognize the unique encryption code of a particular key fob. This means that if a key fob is stolen, the car can't be started. However, a new kind of hacking can let thieves exploit this communication. Relay attacks are based on devices that transmit at the same frequency as the key fob. How Stuff Works Electronics says that a burglar could slip one of these devices in pockets or in a hidden place to block the remote control of the lock. This is a risk that is likely to become more prevalent as more drivers switch to smart keys. Apart from these security features, a smart key fob can simplify your life by automatically attending to the needs of your vehicle. For example an electronic key fob connected to your smartphone will detect your proximity and unlock the doors so that you don't need to push the remote button. It can also sense the moment you leave and automatically lock the car, meaning you don't have worry about forgetting to lock the doors. A lot of smart key fobs come with an indicator for batteries that tells you when the battery is running low. Also, replacing the battery in the majority of models is a simple and simple procedure that doesn't require any special tools. Convenience Smart keys are not required to be inserted physically into an ignition slot to unlock or start the vehicle. Instead, the user has to put it on their person and have it within reach of the vehicle, as explained by the BMW Group. In fact, some smart keys, including the Display Key, come with small LCD touchscreen in color that allows drivers to access features like locking, unlocking, and keyless start right from their keys without needing to connect to the car's Bluetooth system. Another way smart keys can help save time for drivers is by automatizing the process of locking their doors when they leave it. Consumer Reports says that this feature is available on many automobiles. It also makes it easier for drivers to maneuver around tight spaces without accidentally crushing someone or something. Open Road Auto Group explains that smart key systems do not transmit the same frequency signal in a series of in order to make them more susceptible to relay attacks. So a stolen vehicle can't be wired hot if it's equipped with a smart-key because the encrypted signal that the key fob transmits is unique to each car. This technology makes it extremely difficult for thieves to steal a car. Security A few of the most advanced electronic features in today's modern vehicles are found in the key fob. These devices are capable of more than just locking and unlocking doors or making chirping sounds to help drivers locate their car in parking spaces. However certain owners might be unaware of the full capabilities. Certain keys that are smart, for instance, will activate the auto windows and sunroofs of the vehicle when they are you press. A Auto editor of CR once walked out to her Honda Accord only to find all the windows closed and the sunroof open. This was 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 burglars, according to How Stuff Works. This technology blocks hotwiring which is when thieves steal the vehicle's engine control unit (ECM), which is usually located in the front of the engine block. The ECM controls a variety of important functions, including engine power and transmission control. Other smart keys' features include anti-theft coding and a security ID unique to each key. This could disable the ignition in the event that it's not the correct one. The security ID is a number that is transmitted by the ECM from the key to the ignition and then validated with a sensor in the car. Maintenance A smart car key fob can do much more than unlock your door. It can start your engine and operate the brakes and suspension remotely. It can also provide information about your car such as the level of your fuel and oil temperatures. A smart car key fob like any other electronic device, requires regular maintenance to work efficiently. Modern key fobs include indicators for the battery that inform the driver that it is time to replace the battery. It's easy to replace the battery, and you don't need special tools. In some cases however the smart key could stop working completely. If you suspect this is the case Try to reset the smart key by leaving the vehicle and coming back inside. This will allow the car to know that the key fob is inside the vehicle, and allow it to function again. Contact a locksmith in the event that you are not able to get your key fob to work. They can reprogram it to ensure that your car recognizes it and allows you to use all of its features. This is usually less expensive than buying a new fob and could save you money over time. In some instances the locksmith may modify an existing fob so that it can be used to make new keys. This can save you more money in the end.