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What Can a Smart Car Key Fob Do For You? They are also known as fobs, keysless entry or smart keys, they were introduced by Mercedes in 1998. Key fobs that are computer controlled can accomplish many things, including locking and unlocking a vehicle and even starting it. They function by broadcasting an encrypted stream. They are protected from thieves who are tech-savvy. Safety A smart key fob constantly communicates with a vehicle, by radiofrequency waves. It sends a low-power signal that, when pressed it, prompts the vehicle open doors and begin the engine. The car recognizes the unique encrypted code that is generated by a specific keyfob. This means that even in the event that the key fob gets stolen, it won't be used to start the car. But a new type of hack can allow thieves to exploit that communication. Relay attacks are carried out with devices that transmit at the same frequency as a key fob. The thief could place one of these devices in a purse or hiding location to thwart the lock command from a distance, according How Stuff Works Electronics. This is a problem that may become more common as more and more drivers change to smart keys. A smart key fob isn't only a security tool, but it can also simplify your life by automatically taking care of the requirements of your vehicle. A key fob that is connected to your smartphone, for instance, can detect your presence and then unlock the doors, so you don't need to press the remote button. It can also detect when you're leaving the car and auto-lock the vehicle, so you don't have worry about forgetting to lock the doors. Many smart key fobs also have an indicator for the battery that alerts you in advance that the battery is getting low. The majority of models let you replace the battery quickly and conveniently without any special tools. Convenience Contrary to traditional keys made of metal, smart keys do not require physically inserting into an ignition slot in order to unlock or start the vehicle. Instead, the user needs to have it on them and be able to bring it within range of the vehicle, as explained by the BMW Group. Some smart keys, including the Display Key, come with a small LCD touchscreen that gives drivers access to features like locking, unlocking, and keyless start directly from their key fob without the need to connect the Bluetooth system of the car. Another way smart keys can help drivers save time is by automating the process of locking their doors when they leave it. This feature is present in a wide range of vehicles, according to Consumer Reports, and can assist in allowing drivers to get into tight parking spaces without causing injury to something or someone. Open Road Auto Group explains that smart key systems do not transmit the same frequency signal over and over which can make them more vulnerable to relay attacks. Smart keys are distinct to each vehicle, which means that a stolen car can't be hotwired. This technology makes it incredibly difficult for thieves to steal a vehicle. Security Some of the latest electronic features in today's newer vehicles are found in the key fob. These devices do much more than open and close doors, or emit chirping sounds to aid drivers in finding their car in a parking lot However, some drivers may not be aware of all that smart key fobs can accomplish. Certain keys, such as example, will trigger the automatic windows and sunroofs on vehicles when the key is pressed. One auto editor in CR was able to walk into her Honda Accord to find the windows all down and the sunroof wide open. This was one of the reasons she was grateful for her Smart Key, which locked the car automatically. According to How Stuff Works, some smart keys use computer encrypted signals to prevent car thieves from stealing. G28 hotwiring, in which thieves take the engine control module (ECM), which is typically located on the front of the engine block. The ECM controls many vital functions like engine power, transmission control, and other functions. Other smart keys' features include anti-theft encryption and an individual security ID assigned to each key, which can turn off the ignition if it's not the right one. The security ID is a code that is transmitted by the ECM from the key to the ignition, followed by verification by a sensor inside the car. Maintenance Smart car key fobs do more than just unlock the door. It can remotely start your engine, activate suspension and brakes, and even start your car. It also can provide information about your vehicle, including fuel level and oil temperature. A smart car key fob like every other electronic device requires regular maintenance in order to work effectively. Modern key fobs come with battery indicators that warn the driver when the battery is running low. Replacing the battery is a straightforward procedure, and no special tools are required. In some instances however, a smart key might stop working entirely. If you suspect this is the case, you can reset it by leaving the vehicle and then re-entering it. This will allow the car to detect that the key fob is inside the vehicle, and allow it to be used again. If you can't make your fob work Contact a locksmith for help. They can reprogram the fob to ensure that it is recognized by your car and you are able to use all its features. It's generally more economical to do this than buy a new key fob and it could save you money in the long run. In some cases, a locksmith can fix an existing key fob to be able use it for a new one. This can save you more money in the long run.