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What Can a Smart Car Key Fob Do For You? Mercedes introduced the first fobs back in 1998. They are also referred to as smart keys, keyless entry, or keyless entry fobs. These computer-controlled fobs are capable of performing various tasks like locking and unlocking the car or the car's start-up. They function by sending an encrypted and rolling message. This keeps them safer from thieves who are tech-savvy. Safety A smart key fob communicates with the vehicle via radiofrequency waves. It sends out a low-power signal that, when pressed, instructs the car to open doors and start the engine. The car is programmed to recognize the unique encrypted code of a specific key fob. This means that even if the key fob is stolen, it can't be used to start the car. But a new form of hacking could allow thieves to exploit that communication. Relay attacks employ devices that transmit at the same frequency as the key fob. How Stuff Works Electronics says that a thief could place one of these devices inside pockets or in a hidden place to stop the lock command remotely. It's a problem that could become more commonplace as more drivers adopt smart keys. A smart key fob is not only a security tool but 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 allow you to unlock the doors, so you don't need to press the remote button. It could also detect that you're leaving the car and then automatically lock it, so that you don't forget to lock your doors. A majority of smart key fobs have a battery indicator that alerts you when the battery is not fully charged. Most models allow you to replace the battery quickly and easily without any special tools. Convenience As opposed to a traditional metal key Smart keys do NOT require physically inserting into an ignition slot in order to unlock or start the vehicle. Instead, the user has to put it on them and bring it within the range of the vehicle, as explained by the BMW Group. smart key programming near me G28 , like the Display Key, feature an incredibly small LCD touchscreen that allows users to access features like locking, unlocking, and keyless start directly from their key fob, without having to connect to the Bluetooth system in the car. A smart key can also save drivers time by automating the locking of their car doors after they leave. This feature is present in many vehicles, according to Consumer Reports, and can also make it easier to get into tight parking spaces without accidentally squeezing something or someone. Open Road Auto Group explains that smart key systems don't transmit the same frequency signal in a series of in order to make them more susceptible to relay attacks. As such, a stolen vehicle cannot be connected to a hotwire if equipped with a smart key because the encrypted signal that the key fob transmits is unique to each vehicle. This technology makes it incredibly difficult for thieves to steal a car. Security Today's newer cars pack in more advanced electronic features than ever before, and a few of those are located inside the key fob. These devices can do more than just locking and unlocking doors or making chirping sounds to help motorists locate their car in parking lots. However, some owners may be unaware of the full capabilities. For instance, certain smart keys can turn on a vehicle's automatic windows and sunroof if they are pressed. One CR auto editor went into her Honda Accord to find the windows closed and the sunroof wide open. That's just one reason she was grateful for her Smart Key, which locked the car automatically. Some smart keys employ computer-encrypted signals to thwart 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 many important functions including engine power, transmission control and more. Other technologies used in smart keys include anti-theft encryption and an individual security ID assigned to each key, which can block the ignition if it's not the right one. The security ID is a special code that is transmitted from the ECM to the key when it's inserted into the ignition and then confirmed by a device inside the car. Maintenance A smart car key fob does more than just unlock your door. It can remotely start your engine, operate suspension and brakes, and even start your vehicle. It also provides information about your vehicle, including fuel level and the temperature of your oil. A smart car key fob, like any other electronic device, requires regular maintenance to work correctly. Modern key fobs feature battery indicators to alert drivers when it's time to replace the battery. Replacing the battery is a simple procedure, and no special tools are required. In some cases the smart key can stop working completely. If you suspect this is the case, try to reset it by getting out of the vehicle and returning to the vehicle. This will allow the car to recognize that the key fob remains in the vehicle and allow it to be used again. Get in touch with a locksmith if cannot get the key fob to work. They can reprogram it to ensure that the car can recognize it and allows you to use all of its features. This is usually less expensive than purchasing a new fob and could save you money over the course of time. In some cases, a locksmith can even repair an existing fob so that it can be used to create an entirely new key. This can save you even more money in the end.