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What Can a Smart Car Key Fob Do For You? Known as fobs or keyless entry or smart keys, they were first introduced by Mercedes in 1998. These computer-controlled key fobs can perform many tasks, including locking and unlocking cars and even starting it. They transmit a rolling encrypted signal. This makes them more resistant to tech-savvy thieves. Safety A smart key fob constantly communicates with the vehicle by radiofrequency waves. It sends a low-power signal that, when pressed it, prompts the vehicle open doors and start the engine. smart fortwo key fob G28 is programmed to recognize the unique encryption code of a specific key fob. This means that even when the key fob is stolen, it isn't used to begin the car. A new vulnerability allows thieves to exploit this method of communication. Relay attacks utilize devices that transmit on the same frequency as the key fob. How Stuff Works Electronics says that a burglar could slip one of these gadgets into an unnoticed pocket or a hidden location to stop the lock command remotely. This is a problem which could become more frequent as more motorists change to smart keys. A smart key fob isn't only a security feature but can also make your life easier by automatically taking care of the needs of your vehicle. For example a key fob linked to your smartphone can detect your location and unlock the doors, meaning you don't need to push a button on the remote. It can also tell when you're leaving and automatically lock the car, meaning you don't have to worry about forgetting to lock the doors. A lot of smart key fobs include an indicator for batteries that informs you in advance that the battery is at a low level. The majority of models let you replace the battery quickly and conveniently without the need for any special tools. Convenience Smart keys do not have to be inserted physically into an ignition slot to unlock or start the car. Instead, the user requires it to be on their person and bring it within range of the vehicle, as described by the BMW Group. In fact, some smart keys, including the Display Key, have a small LCD color touchscreen that allows users to access features such as locking or unlocking as well as keyless start directly from their key fob, without needing to connect to the car's Bluetooth system. A smart key can also save drivers time by automating the locking of their car doors when they leave. This feature is present in many vehicles, as per Consumer Reports, and can also help get into tight parking spaces without accidentally squeezing something someone. Open Road Auto Group explains that smart key systems do not transmit the same frequency signal repeatedly and this could make them more vulnerable to relay attacks. Therefore it is impossible for a stolen car to be hotwired even if it's equipped with a smart key because the encrypted signal that the key fob transmits is unique to each car. This makes it extremely difficult for thieves to steal a vehicle. Security Modern cars come with more high-tech electronic features than ever, and some of them are housed inside the key fob. These gadgets are capable of much more than locking and unlocking doors, or making chirping noises to help motorists locate their car in parking spaces. However there are some who are unaware of the full capabilities. For instance, some smart keys can trigger windows that automatically open and sunroof if they are hit. A Auto editor of CR once walked out to her Honda Accord only to find all the windows closed and sunroof open. This is one of the reasons she was grateful for her Smart Key, which locked the car automatically. Certain smart keys use encrypted computer signals to thwart car burglars According to How Stuff Works. This technology prevents hotwiring, in which thieves steal the vehicle's engine control module (ECM), which is typically located in the front of the engine block. The ECM controls many vital functions including engine power, transmission control, and more. Smart keys also have anti-theft codes as well as a unique ID security code that is assigned to each key. This can disable the ignition if the wrong key is used. The security ID is a code that is transmitted by the ECM from the key to the ignition, and then validated by a sensor located in the car. Maintenance Smart car key fobs can do more than simply unlock the door. It can start your engine, and also activate suspension and brakes remotely. It can also provide information about your car such as the level of your fuel and oil temperatures. A smart car key fob, as any other electronic device, requires regular maintenance to work properly. Key fobs that are modern have indicators for batteries that notify the driver when the battery is running low. Replacing the battery is an easy process, and no specialized tools are required. In certain instances the smart key could cease to function completely. If you suspect this to be the case, attempt to reset it by taking the car out and then returning inside. This will allow the car to know that the key fob is still in the vehicle and let it to be used again. Contact a locksmith in the event that you are not able to get your key fob to work. They can reprogram it to ensure that your vehicle recognizes it again and allows you to utilize all of its functions. It's generally cheaper to do this instead of buying a new key fob, and it can save you money in the long run. In some cases, a locksmith can fix an existing key fob in order to be able to exchange it as a replacement. This could save you money in the end.