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What Can a Smart Car Key Fob Do For You? Also known as fobs, keyless entry or smart keys, they were introduced by Mercedes in 1998. They are computer-controlled and capable of performing various tasks, such as locking and unlocking the car or the car's start-up. smart keys for cars function by broadcasting an encrypted, rolling signal. They are protected from tech-savvy thieves. Safety A smart key fob that communicates continuously with a vehicle through radiofrequency waves. It sends a low-power signal that, when pressed signals the car to unlock doors and start its engine. The car can recognize the unique encrypted code from a particular keyfob. This means that even if the key fob is stolen, it cannot be used to start the car. A new hack allows thieves to exploit this communication. Relay attacks are carried out with devices that transmit at the same rate as keys. A thief can place one of these gadgets in a purse or hiding in a place to block the lock command from a distance, says How Stuff Works Electronics. This is a problem that could become more frequent as more motorists switch over to smart keys. A smart key fob is not just a security device however, it can make your life easier by automatically taking care of the requirements of your vehicle. A key fob connected to your smartphone, for instance can sense your presence and unlock the doors, meaning you don't need to press a remote button. It can also sense when you're leaving and auto-lock the car, meaning you don't need to worry about forgetting to lock the doors. A lot of smart key fobs come with a battery indicator which warns you when the battery is running low. Also, replacing the battery in the majority of models is an easy, easy procedure 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. BMW Group explains that the driver just needs to bring the key within the range of the car. Some smart keys, like the Display Key, come with a small LCD touchscreen that grants drivers access to features like locking, unlocking and keyless start directly from their key fob, without needing to connect to the Bluetooth system of the car. Smart keys can also save drivers time by automating the locking of their car doors when they leave. This feature is offered in many vehicles, according to Consumer Reports, and can also help maneuver into tight parking spots without accidentally hitting something or anyone. Open Road Auto Group explains that smart key systems don't transmit the same frequency signal over and over and this could make them more susceptible to relay attacks. Smart keys are specific to each vehicle so a stolen car cannot be hotwired. This technology makes it difficult for thieves to steal a car. Security Some of the high-tech electronic features in today's newer automobiles are included in the key fob. These gadgets do much more than just lock and unlock doors, or make chirping noises to help drivers find their car in a parking lot, but some owners may not be aware of all that these smart key fobs are able to do. For instance, some smart keys can activate the auto windows of a car and sunroof once they are pressed. One CR auto editor walked into her Honda Accord to find the windows shut and the sunroof fully open. This was one of the reasons she was so grateful for her Smart Key, which locked the car automatically. Some smart keys employ computer-encrypted signals to stop car thieves According to How Stuff Works. This technology prevents hotwiring, where thieves steal the vehicle's engine control module (ECM), which is typically located in the front of the engine block. The ECM controls a variety of essential functions, including transmission control and engine power. Other smart keys' features include anti-theft coding and a unique security ID assigned to each key. This can block the ignition if it's not the right one. The security ID is a unique code that is transmitted by the ECM from the key to the ignition, and then confirmed by a sensor in the car. Maintenance Smart car key fobs do much more than unlock the door. It can start your engine and also activate the brakes and suspension remotely. It also provides information about your car such as the level of your fuel and the oil temperature. A smart car key fob like any other electronic device, requires regular maintenance in order to function correctly. Modern key fobs come with indicators for batteries that notify the driver when the battery is running low. It is easy to replace the battery, and you don't require special tools. In certain instances the smart key may cease to function completely. If you suspect that this is the case, try 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 remains in the vehicle and let it to function again. If you are unable to get your fob to work Contact a locksmith for assist. They can reprogram it to ensure that the car recognizes it once more and allows you to use all of its features. It's usually more cost-effective to do this rather than purchasing a new key fob and it could save you money in the long run. In some cases, a locksmith can repair an existing key fob in order to be able to use it for a new one. This can save you money in the end.