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What Can a Smart Car Key Fob Do For You? Known as fobs, keyless entry or smart keys, they were introduced by Mercedes in 1998. These computer-controlled key fobs can perform a variety of functions, including locking and unlocking cars as well as starting it. They transmit an encrypted stream. This makes them more resistant to thieves who are tech-savvy. Safety A smart key fob communicates with a vehicle using radiofrequency waves. It emits a low power signal that, upon pressing it, signals the vehicle to unlock doors and start the engine. The car is programmed to recognize the unique encrypted code of a specific key fob. This means that if the key fob is stolen, the car can't be started. A new vulnerability allows thieves to exploit this method of communication. Relay attacks are carried out with devices that transmit at the same rate as the key fob. How Stuff Works Electronics says that a thief could place one of these devices inside pockets or in a hidden place to stop the lock command remotely. This is a risk that is likely to become more prevalent, as more drivers switch over to smart keys. A smart key fob is not only a security feature but can also simplify your life by automatically taking care of the needs of your vehicle. For example a key fob connected to your smartphone will detect your presence and open the doors, so you don't need to push the remote button. It can also sense the moment you leave and automatically lock the car, meaning you don't need to worry about forgetting to lock the doors. A majority of smart key fobs have a battery indicator which warns you when the battery is running low. The majority of models let you replace the battery quickly and easily, without any tools or equipment required. Convenience Smart keys do not have to be physically placed in an ignition slot to open or start the vehicle. BMW Group explains that the driver just needs to bring the key within reach of the car. In fact, some smart keys, such as the Display Key, have a small LCD touchscreen in color that allows drivers to access features such as locking or unlocking as well as keyless start right from their keys without having to connect to the car's Bluetooth system. Another way a smart key could help save time for drivers is by automatizing the process of locking their doors after they leave. This feature is available in a wide range of vehicles, as per Consumer Reports, and can help maneuver into tight parking spots without causing injury to something or someone. Furthermore, smart key systems typically do not send the same frequency signal repeatedly which could make them more vulnerable to relay attacks, says Open Road Auto Group. So the vehicle that is stolen cannot be hotwired if it is equipped with a smart key as the encrypted signal that the key fob transmits is unique to each vehicle. This technology makes it extremely difficult for thieves to steal a vehicle. Security A few of the most advanced electronic features found in the latest automobiles are contained in the key fob. These gadgets are capable of much more than locking and unlocking doors, or making chirping sounds to assist drivers locate their vehicle in parking areas. However, some owners may be unaware of the full capabilities. For instance, certain smart keys can trigger a vehicle's automatic windows and sunroof once they are hit. A Auto editor of CR once walked out to her Honda Accord only to find all the windows closed and sunroof up. smart car key repair was grateful for her Smart Key that automatically locked the car. Some smart keys use computer-encrypted signals to thwart car burglars According to How Stuff Works. This technology is able to prevent hotwiring in which thieves take the vehicle's engine control module (ECM) which is usually found in the front of the engine block. The ECM regulates a variety of essential functions, including transmission control and engine power. Smart keys also include anti-theft codes and a unique ID security code assigned to each key. This can disable ignition if the wrong key is used. The security ID is a number that is transmitted by the ECM from the key to the ignition, and then confirmed by a sensor located in the car. Maintenance Smart car key fobs can do more than unlock the door. It can remotely start your engine, activate the brakes and suspension and even start your car. It can also provide information about your car, like the level of fuel and the oil temperature. Like any piece of electronic equipment, a smart car key fob requires regular maintenance to function effectively. Key fobs that are modern have battery indicators that warn the driver when the battery is low. Replacing the battery is a straightforward procedure, and no specialist tools are required. In certain instances the smart key can stop working entirely. If you suspect that this is the case Try to reset the smart key by leaving the vehicle, then returning inside. This will allow the car to detect that the key fob is in the vehicle and allow it to be used again. If you're not able to make your fob work call a locksmith assist. They can reprogram the fob to ensure that it is recognised by the car and you can utilize all of its features. It's usually more cost-effective to do this rather than purchasing a new key fob and it could save you money in the end. In certain instances, the locksmith can fix an existing key fob in order to be able to exchange it to purchase a new one. This could save you more money in the long run.