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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 fobs are capable of performing a variety of functions, such as locking and unlocking the car or getting it started. They function by sending an encrypted message that is continuously transmitted. This helps protect them from tech-savvy thieves. Safety A smart key fob is constantly communicating with the vehicle via radiofrequency waves. It sends out a low-power signal that, when pressed, signals the car to unlock doors and start the engine. The car can recognize the unique encrypted code of a particular keyfob. This means that even in the event that the key fob gets stolen, it cannot be used to start the car. A new hack allows thieves to exploit this type of communication. Relay attacks are based on devices that transmit on the same frequency as the key fob. Thieves can put one of these devices in a pocket or hiding in a place to block the lock command from a distance, says How Stuff Works Electronics. This issue will become more frequent as more people switch to smart keys. Aside from these security features, an intelligent key fob could simplify your life by automatically taking care of your vehicle's needs. For example, a key fob that's linked to your smartphone can detect your presence and open the doors, meaning that it's not necessary to press the remote button. It also can detect that you are leaving the vehicle and automatically close it, so you won't forget to lock the doors. A majority of smart key fobs have an indicator for batteries that tells you when the battery is not fully charged. Also, replacing the battery in the majority of models is an easy and easy process that doesn't require any special tools. Convenience As opposed to a traditional metal key Smart keys do not require physically inserting into the ignition slot in order to unlock or start a vehicle. G28 explains that the driver just needs to bring the key within range of the car. In fact, some smart keys, like the Display Key, come with small LCD touchscreen with color that allows drivers to access features like locking, unlocking, and keyless start directly from their keys without needing to connect to the car's Bluetooth system. Smart keys can also help drivers save time by automating the closing of their car doors when they leave. Consumer Reports says that this feature is offered on a number of vehicles. It also makes it easier for drivers to maneuver into tight spots without accidentally pushing the door or something else. Smart key systems usually do not transmit the same frequency signal over and over and this can make them more susceptible to relay attacks, explains Open Road Auto Group. Smart keys are unique to each vehicle, therefore a stolen vehicle cannot be connected to a hotwire. This makes it very difficult for thieves to steal a car. Security Today's newer cars pack in more advanced electronic features than ever before, and many of them are found inside the key fob. These devices can do much more than simply locking and unlocking doors or making chirping noises to help drivers locate their car in parking spaces. However, some owners may be unaware of the full capabilities. Certain keys that are smart, for instance, can trigger the automatic windows and sunroof of the vehicle when they are you press. One auto editor at CR walked into her Honda Accord to find the windows completely shut and the sunroof wide open. She was thankful for her Smart Key that automatically locked the car. Certain smart keys utilize computer-encrypted signals to thwart car thieves According to How Stuff Works. This technology blocks hotwiring, which thieves steal a vehicle's engine controller module (ECM), usually located at the front of the engine. The ECM regulates a variety of vital functions, including engine power and transmission control. Smart keys also come with anti-theft codes as well as a unique ID security code that is assigned to each key. This can disable the ignition when the wrong key is used. The security ID is a special code that's sent from the ECM to the key when it's inserted in the ignition and confirmed by a sensor in the car. Maintenance A smart car key fob can do more than just unlock your door. It can remotely start your engine, activate the brakes and suspension and even start your vehicle. It can also provide information about your car, including the level of fuel and the temperature of your oil. Like all electronic equipment like a smart car key fob needs regular maintenance to ensure it functions effectively. Modern key fobs include indicators for the batteries to inform the driver that it is time to replace the battery. Replacing the battery is a straightforward procedure, and no specialist tools are required. In some instances, the smart key will stop working completely. If you suspect that this is the cause, try to reset the smart key by leaving the vehicle and returning inside. This will allow the car to know that the key fob is still inside the vehicle, and allow it to regain its functionality. Get in touch with a locksmith if have trouble getting your key fob working. They can reprogram the fob so that it can be recognized by your car and you can utilize all its features. It's generally cheaper to do this than buying a new key fob, and it could save money in the long run. In some cases, the locksmith can fix an existing key fob in order to be able to use it as a replacement. This can save you more money in the long run.