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What Can a Smart Car Key Fob Do For You? Also known as smart car key recoding g28carkeys.co.uk , keyless entry or smart keys, they were introduced by Mercedes in 1998. These computer-controlled fobs are capable of performing a variety of functions, such as locking and unlocking the car, or getting it started. They transmit a rolling encrypted message. This makes them more secure to tech-savvy thieves. Safety A smart key fob communicates with a vehicle through radiofrequency waves. It sends a low-power signal that, when pressed will instruct the car to open doors and start the engine. The car is programmed to recognize the unique encrypted code of a particular key fob. This means that if the keyfob is stolen, the car can't be started. A new vulnerability allows thieves to take advantage of this method of communication. Relay attacks employ devices that transmit at the same frequency as the key fob. How Stuff Works Electronics says that thieves could put one of these devices inside pockets or in a hidden place to block the key fob's lock command remotely. This is a problem that may become more common as more people are switching to smart keys. Apart from these security features, smart key fobs can make life easier by automatically taking care of the needs of your vehicle. A key fob that is connected to your smartphone, for instance can detect your presence and open the doors so that you don't have to press the remote button. It also can detect when you're leaving and automatically lock the car, meaning you don't need to worry about forgetting to lock the doors. Many smart key fobs feature an indicator for the battery that warns you when the battery is not fully charged. Most models allow you to replace the battery quickly and conveniently without the need for any special tools. Convenience Smart keys do not need to be physically inserted into an ignition slot to open or start the vehicle. Instead, the driver must have it 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, feature tiny LCD touchscreen with color that allows users to access features such as locking or unlocking as well as keyless start directly from their key fob without having to connect to the car's Bluetooth system. Smart keys can also save drivers time by automating the locking of their car doors after 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 pushing someone or something. 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. Therefore, a stolen vehicle cannot be hotwired even if it's equipped with a smart key because the encrypted signal that the key fob transmits is unique to each vehicle. This makes it extremely difficult for thieves to steal the car. Security Some of the top-of-the-line electronic features that are present in modern automobiles can be found in the key fob. These devices are capable of more than locking and unlocking doors, or making chirping noises to help drivers locate their vehicle in parking lots. However certain owners might be unaware of the full capabilities. For instance, certain smart keys are able to activate a vehicle's automatic windows and sunroof when they are activated. One CR auto editor walked into her Honda Accord to find the windows completely shut and the sunroof completely open. She was thankful for her Smart Key that automatically locked the car. According to How Stuff Works, some smart keys utilize computer-encrypted signals to prevent car thieves from stealing. This technology stops hotwiring, where thieves steal the engine control module (ECM) which is usually found in the front of the engine block. The ECM controls many vital functions, including engine power, transmission control and more. Other technologies in smart keys include anti-theft codes and a unique security ID assigned to each key, which could disable the ignition in the event that it's not the correct 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 can do more than unlock the door. It can start your engine and activate the suspension and brakes remotely. It can also provide details about your vehicle, including fuel level and the temperature of your oil. Like all electronic equipment the smart car key fob needs regular maintenance to function effectively. Modern key fobs feature indicators for the battery that inform the driver when it is time to replace the battery. Replacing the battery is a straightforward process, and no specialized tools are required. In some cases however, the smart key will stop working completely. If you suspect this is the case, you can reset it by getting out of the vehicle and then returning inside. This will let the car recognize that the fob is active and allow it regain functionality. If you're unable to make your fob work get in touch with a locksmith for help. They can reprogram it to ensure that the car recognizes it once more and allows you to use all of its features. It's generally cheaper to do this rather than purchasing the new fob for your key, and it will save you money in the long run. In some cases locksmiths are able to repair an existing fob to be used to create a new key. This could save you money in the end.