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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 perform many tasks, including locking and unlocking cars and also starting it. They work by broadcasting an encrypted and rolling signal. This makes them more receptive to cyber-savvy thieves. Safety A smart key fob continually communicates with a vehicle, through radiofrequency signals. It transmits a low power signal that, when pressed it, signals the vehicle to unlock doors and begin the engine. The car recognizes the unique encrypted code from a particular keyfob. This means that even in the event that the key fob gets stolen, it can't be used to start the car. A new vulnerability allows thieves to take advantage of this method of communication. smart car key coding utilize devices which transmit on the same frequency as the key fob. How Stuff Works Electronics says that a burglar could slip one of these devices into an unnoticed pocket or a hidden location to stop the remote control of the lock. This is a risk that may become more common as more people are switching to smart keys. In addition to these security features, a smart key fob can simplify your life by automatically taking care of your vehicle's needs. A key fob that is connected to your smartphone, for example it can detect your presence and allow you to unlock the doors so you don't have to press a remote button. It can also sense the moment you leave and automatically lock the vehicle, so you don't have to fret about not locking the doors. Many smart key fobs also have a battery indicator that warns you well in advance when the battery is running low. Also, replacing the battery in most models is a quick and easy process that does not require any special tools. Convenience Smart keys do not have to be physically placed in an ignition slot to unlock or start the vehicle. Instead, the driver requires it to be in their possession and bring it within range of the vehicle, as described by the BMW Group. Some smart keys, including the Display Key, have a small LCD touchscreen that gives drivers access to features such as locking, unlocking, and keyless starting directly from their key fob without needing to connect to the Bluetooth system of the car. A smart key could also help drivers save time by automating the locking of their doors when they leave. This feature is offered in a variety of automobiles, according to Consumer Reports, and can assist in allowing drivers to get into tight parking spaces without accidentally squeezing something or anyone. Open Road Auto Group explains that smart key systems do not transmit the same frequency signal in a series of which can make them more vulnerable to relay attacks. Smart keys are specific to each vehicle, which means that a stolen car can't be hotwired. This makes it extremely difficult for thieves to steal a vehicle. Security The latest cars are equipped with more high-tech electronic features than ever, and some of them are housed inside the key fob. These devices can do more than unlock and lock doors, or make chirping noises to aid drivers in finding their vehicle in a parking lot However, some owners may not be aware of everything that these key fobs are able to do. Some smart keys, for instance, will activate the automatic windows and sunroofs on the vehicle when they are they are pressed. A CR auto editor once walked out to her Honda Accord only to find all the windows closed and the sunroof open. She was grateful for her Smart Key that automatically locked the car. Certain smart keys use encrypted computer signals to thwart car burglars according to How Stuff Works. This technology prevents hotwiring, in which thieves take the vehicle's engine control unit (ECM), that is usually located in the front of the engine block. The ECM controls a variety of important functions, including transmission control and engine power. Smart keys also have anti-theft code and a unique ID security code assigned to each key. This could stop the 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, and then validated by a sensor inside the car. Maintenance A smart car key fob can do much more than unlock your door. It can remotely start your engine, operate suspension and brakes, and even start your car. It also provides details about your vehicle, like the level of fuel and the temperature of your oil. Like any piece of electronic equipment the smart car key fob requires regular maintenance to operate effectively. Modern key fobs include indicators for the battery that inform the driver when it is time to replace the battery. It is easy to replace the battery, and you don't need any special tools. In certain instances however, a smart key may stop functioning entirely. If you suspect that this is the case Try to reset the smart key by removing the vehicle and returning inside. This will allow the car to detect that the key fob is in the vehicle and will allow it regain functionality. If you're not able to get your fob to function call a locksmith assist. They can reprogram it so that the car recognizes it and allows you to use all of its functions. It's generally more economical to do this rather than purchasing a new key fob, and it could save money in the long run. In some cases locksmiths are able to modify an existing fob in order to be used to create new keys. This could save you money in the end.