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What Can a Smart Car Key Fob Do For You? Mercedes introduced the first fobs in the year 1998. They are also referred to as smart keys, keyless entry or keyless entry fobs. These computer-controlled key fobs can accomplish a variety of tasks, such as locking and unlocking cars as well as starting it. They transmit an encrypted, rolling signal. This keeps them safer from thieves who are tech-savvy. Safety A smart key fob communicates constantly with a vehicle through radiofrequency waves. It emits a low power signal that, upon pressing, tells the vehicle to unlock doors and start the engine. The car can recognize the unique encrypted code from a particular keyfob. This means that if the key fob is stolen, the car will not be started. However, a new kind of hacking can permit thieves to take advantage of that communication. Relay attacks are carried out using devices that transmit at the same rate as keys. A thief can place one of these devices in a pocket or a hiding in a place to block the lock command from a distance, says How Stuff Works Electronics. This is a risk that could become more common as more drivers adopt smart keys. A smart key fob is not only a security feature, but it can also make your life easier by automatically taking care of the needs of your vehicle. For example an electronic key fob connected to your smartphone will detect your location and unlock the doors so that it's not necessary to press a button on the remote. It also can detect when you're leaving and auto-lock the car, meaning you don't have worry about forgetting to lock the doors. Many smart key fobs have a battery indicator that alerts you when the battery is low. In addition, replacing the battery on the majority of models is a simple, simple process that does not require any special tools. Convenience Unlike a traditional metal key smart keys do not require physical inserting into the ignition slot in order to unlock or start the vehicle. BMW Group explains that the driver is only required to bring the key within range of the car. In reality, certain smart keys, like the Display Key, have a small LCD touchscreen with color that allows users to access features such as locking or unlocking and keyless start right from their key fobs without needing to connect to the car's Bluetooth system. Another way that smart keys can help drivers save time is by automatizing the process of locking their doors when they leave. This feature is offered in a number of vehicles, according to Consumer Reports, and can also help get into tight parking spaces without accidentally hitting something or someone. Open Road Auto Group explains that smart key systems do not transmit the same frequency signal over and over in order to make them more susceptible to relay attacks. Smart keys are unique to each vehicle, so a stolen vehicle can't be connected to a hotwire. This technology makes it incredibly 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 devices can do more than simply unlock and lock doors, or make chirping noises to assist drivers in finding their car in a parking space However, some owners may not be aware of everything the things these smart key fobs can do. For instance, some smart keys can trigger the auto windows of a car and sunroof if they are activated. One auto editor from CR was able to walk into her Honda Accord to find the windows all down and the sunroof completely open. That's just one reason she was so grateful for her Smart Key, which locked the car automatically. Certain smart keys utilize computer-encrypted signals to thwart car burglars According to How Stuff Works. This technology prevents hotwiring in which thieves steal a vehicle's engine controller module (ECM) typically located in front of the engine. The ECM is responsible for many important functions, including engine power, transmission control and more. Other technologies used in smart keys include anti-theft code and a security ID unique to each key. This could disable the ignition in the event that it's not the right one. auto smart key replacement is a specific code that is transmitted from the ECM to the key when it's inserted in the ignition, and is verified by a sensor inside the car. Maintenance A smart car key fob does more than just unlock your door. It can remotely start your engine, operate the brakes and suspension and even start your car. It also can provide information about your vehicle like fuel level and temperature of the oil. A smart car key fob, just like any other electronic device, requires regular maintenance to work properly. Modern key fobs include indicators for the batteries to inform the driver when it is time to replace the battery. Replacing the battery is an easy procedure, and no specialized tools are required. In certain situations, however, a smart key can stop working completely. If you suspect this is the case Try to reset the smart key after leaving the vehicle and coming back inside. This will allow the car to recognize that the fob is still in use and allow it to get back to its normal function. Contact a locksmith if you are not able to get the key fob to work. They can reprogram it to ensure that the car can recognize it once more and allows you to use all of its functions. This is typically cheaper than buying a new fob and could save you money over time. In some instances, the locksmith can repair an existing key fob in order to be able to swap it for a replacement. This can save you money in the end.