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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 first introduced by Mercedes in 1998. They are computer-controlled and capable of performing various tasks, such as locking and unlocking the car, or beginning it. They work by broadcasting an encrypted, rolling signal. This keeps them safer from thieves who are tech-savvy. Safety A smart key fob constantly communicates with a vehicle by radiofrequency waves. It transmits a low-power message that, when pressed tells the car to unlock doors and start the engine. The car can recognize the unique encrypted code that is generated by a specific keyfob. This means that even when the key fob has been stolen, it can't be used to start the car. A new vulnerability allows thieves to exploit this method of communication. Relay attacks are carried out using devices that transmit at the same rate as the key fob. Thieves can put one of these devices in a purse or hiding location to thwart the lock command from a distance. How Stuff Works Electronics. It's a problem that is likely to become more prevalent as more drivers switch to smart keys. Apart from these security options, smart key fobs can make life easier by automatically taking care of your vehicle's needs. For example, a key fob that's connected to your smartphone can detect your proximity and unlock the doors, so you don't have to press a button on the remote. It also can detect when you're leaving and automatically lock the car, meaning you don't have to fret about forgetting to lock the doors. A lot of smart key fobs come with a battery indicator which warns you when the battery is depleted. The replacement of the battery in the majority of models is an easy, simple process that doesn't require any special tools. Convenience In contrast to a traditional key made of metal Smart keys do NOT require physically inserting into an ignition slot in order to unlock or start a vehicle. BMW Group explains that the driver just needs to bring the key within reach of the car. Certain smart keys, such as the Display Key, feature tiny LCD touchscreen that grants users to access features like locking, unlocking and keyless start directly from their key fob, without the need to connect the Bluetooth system in the car. Another way smart keys can save drivers time is by automatizing the process of locking their car doors when they leave. Consumer Reports says that this feature is present on a variety of automobiles. It can also make it easier for drivers to maneuver into tight spots without accidentally squeezing someone or something. 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 vulnerable to relay attacks. So it is impossible for a stolen car to be connected to a hotwire if equipped with a smart key as the encrypted signal that the key fob transmits is unique to each vehicle. This makes it very difficult for thieves to steal a car. G28 Car Keys have more advanced electronic features than ever before, and some of them are housed in the key fob. These devices are capable of more than locking and unlocking doors, or making chirping sounds to help drivers locate their car in parking areas. However there are some who are unaware of the full capabilities. Some smart keys, for instance, will activate the automatic windows and sunroofs on the vehicle when they are the key is pressed. A auto editor from CR once walked out to her Honda Accord only to find all the windows closed and the sunroof opened. She was grateful for her Smart Key that automatically locked the car. According to How Stuff Works, some smart keys utilize computer-encrypted signals to stop car thieves. This technology blocks hotwiring in which thieves take the engine control module (ECM) which is usually located in the front of the engine block. The ECM regulates a variety of vital functions like engine power, transmission control and more. Other technologies used in smart keys include anti-theft encryption and a unique security ID assigned to each key. This can disable 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 in the car. Maintenance Smart car key fobs do more than just unlock the door. It can start your engine, and also activate suspension and brakes remotely. It can also provide details about your vehicle, including fuel level and oil temperature. A smart car key fob like any other electronic device requires regular maintenance to function properly. The majority of modern key fobs have indicators for batteries that notify the driver when the battery is low. Replacing the battery is a simple procedure, and no special tools are required. In certain situations the smart key might stop working entirely. If you suspect this is the cause try resetting the smart key after leaving the vehicle and returning inside. This will enable the car to understand that the key fob is still inside the vehicle, and allow it regain functionality. If you can't get your fob to work call a locksmith assist. They can reprogram your fob so that it is recognized by the car again and you can utilize all its features. It's usually more cost-effective to do this than buying the new fob for your key, and it could save money in the end. In some cases, a locksmith can fix an existing key fob to be able to use it to purchase a new one. This can save you even more money in the long run.