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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 fobs are capable of performing a variety of functions like locking and unlocking the vehicle or starting it. They work by broadcasting an encrypted, rolling signal. This helps protect them from thieves who are tech-savvy. Safety A smart key fob continuously communicates with a vehicle by radiofrequency waves. It transmits a low-power signal that, when pressed, instructs the car to open doors and begin its engine. The car recognizes the encrypted code that is generated by a specific keyfob. This means that even in the event that the key fob gets stolen, it can't be used to start the car. But a brand new type of hacking can allow thieves to exploit that communication. Relay attacks are carried out using devices that transmit at the same rate as a key fob. A burglar can put one of these devices in a pocket or hiding spot to jam the lock command from a distance, according to How Stuff Works Electronics. It's a concern that could become more commonplace as more drivers adopt smart keys. A smart key fob isn't just a security feature, but it can also simplify your life by automatically taking care of the requirements of your vehicle. For example an electronic key fob connected to your smartphone will detect your presence and then unlock the doors, meaning you don't have to hit the remote button. It can also tell when you're leaving the car and auto-lock the car, meaning you don't have worry about not locking the doors. A lot of smart key fobs have an indicator for the battery that alerts you ahead of time when the battery is at a low level. Most models allow you to replace the battery quickly and easily without any special tools. Convenience Smart keys do not have to be inserted physically into an ignition slot to unlock or start the car. BMW Group explains that the driver only needs to bring the key within range of the car. In reality, certain smart keys, such as the Display Key, come with tiny LCD touchscreen that enables users to access features like locking and unlocking, as well as keyless start right from their key fob without needing to connect with the car's Bluetooth system. Another way smart keys can save drivers time is by automatizing the process of locking their doors when they leave. Consumer Reports says that this feature is present on a variety of automobiles. It also makes it easier for drivers to maneuver into tight spaces without accidentally crushing the door or something else. 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 vulnerable to relay attacks. Therefore it is impossible for a stolen car to be connected to a hotwire if equipped with a smart key because the encrypted signal that the key fob transmits is unique to each car. This technology makes it difficult for thieves steal cars. Security The latest cars are equipped with more high-tech electronic features than ever before, and many of them are housed on the key fob. These devices do more than just lock and unlock doors or make chirping sounds that help drivers find their car in a parking space However, some drivers may not be aware of everything that these key fobs can do. Certain keys, such as instance, will activate the auto windows and sunroofs of the vehicle when they are you press. A auto editor for CR once went out to her Honda Accord only to find all the windows closed and the sunroofs open. She was grateful for her Smart Key that automatically locked the car. Certain smart keys use encrypted computer signals to deter car thieves According to How Stuff Works. This technology prevents hotwiring in which thieves steal a vehicle's engine controller module (ECM), usually located at the front of the engine. The ECM regulates a variety of vital functions, including engine power, transmission control and more. Other features of smart keys include anti-theft codes and a unique security ID assigned to each key. This can disable the ignition if it's not the correct one. The security ID is a special code that is sent from the ECM to the key after it's placed in the ignition, and is confirmed by a sensor in the car. Maintenance A smart car key fob does much more than unlock your door. It can remotely start your engine, turn on the brakes and suspension and even start your vehicle. It also can provide information about your vehicle such as fuel level and temperature of the oil. Like all electronic equipment like a smart car key fob needs regular maintenance to operate effectively. Modern key fobs come with indicators for the battery that inform the driver that it is time to replace the battery. It's easy to replace the battery and you don't require special tools. In certain instances the smart key might cease to function completely. If smart key car suspect that this is the issue try resetting the smart key by removing the vehicle and returning inside. This will allow the car to recognize that the key fob is still in the vehicle and will allow it regain functionality. If you're not able to make your fob work call a locksmith help. They can reprogram it to ensure that your car recognizes it and allows you to use all of its functions. It's generally cheaper to do this than buy a new key fob and it could save you money in the long run. In some cases, the locksmith can fix an existing key fob in order to be able use it as a replacement. This could save you money in the end.