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What Can a smart keys cars 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 a variety of functions, such as locking and unlocking the car or getting it started.

They function by sending an encrypted message that is continuously transmitted. They are protected from hackers with a technological edge.

Safety

A smart key fob continuously communicates with a vehicle through radiofrequency signals. It transmits a low-power signal that, when pressed, signals the car to unlock doors and begin its engine. The car is programmed to recognize the unique encryption code of a specific key fob. This means that if a key fob is stolen, the car will not start.

A new vulnerability allows thieves to exploit this method of communication. Relay attacks employ devices that transmit on the exact frequency 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 block the remote lock command. This issue could become more common as more drivers adopt smart key car keys.

A smart key fob is not only a security tool however, it can simplify your life by automatically taking care of the needs of your vehicle. A key fob linked to your smartphone, for instance can detect your presence and then unlock the doors, meaning you don't need to push the remote button. It can also detect the moment you leave and automatically lock the car, meaning you don't have to fret about forgetting to lock the doors. Many smart key fobs have an indicator for batteries that tells you when the battery is depleted. And replacing the battery in the majority of models is a simple, easy procedure that does not require any special tools.

Convenience

Smart keys do not need to be physically inserted in an ignition slot to open or start the car. BMW Group explains that the driver is only required to bring the key within the range of the car. In reality, some smart keys, such as the Display Key, come with a small LCD touchscreen with color that allows drivers to access features like locking or unlocking as well as keyless start right from their key fob 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 car doors when they leave. This feature is found in a variety of vehicles, according to Consumer Reports, and can also help get into tight parking spaces without accidentally squeezing something someone else.

Furthermore, smart key systems generally do not transmit the same frequency signal over and over which could make them more susceptible to relay attacks, according to Open Road Auto Group. Smart keys are specific to each vehicle so a stolen car cannot be connected to a hotwire. This technology makes it extremely difficult for thieves steal cars.

Security

The latest cars are equipped with more advanced electronic features than ever, and some of them are found in the key fob. These gadgets do much more than simply open and close doors, or make chirping sounds to assist motorists in finding their vehicle in a parking lot, but some owners may not be aware of all that these key fobs do.

For instance, certain smart keys can activate windows that automatically open and sunroof if they are press. A CR auto editor once walked out to her Honda Accord only to find all the windows closed and sunroofs open. She was grateful for her Smart Key that automatically locked the car.

Certain smart keys use encrypted computer signals to thwart car smart key replacement (moved here) thieves according to How Stuff Works. This technology blocks hotwiring in which thieves steal the vehicle's engine control unit (ECM) which is typically located in the front of the engine block. The ECM is responsible for a variety vital functions, such as transmission control and engine power.

Other smart keys' features include anti-theft code and an individual security ID assigned to each key. This can disable the ignition if it's not the correct one. The security ID is a specific code that is transmitted from the ECM to the key when it's put into the ignition. It is then confirmed by a device inside the car.

Maintenance

Smart car key fobs can 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, such as the level of your fuel and oil temperatures.

Like any piece of electronic equipment, a smart car key fob needs regular maintenance to operate properly. Modern key fobs include indicators for the battery that inform the driver that it is time to replace the battery. It's simple to replace the battery and you don't need any special tools.

In some instances, the smart key will stop working completely. If you suspect that's the case, try to reset it by taking the car out and then coming back inside. This can help the car recognize that the fob is active and allow it return to normal operation.

Contact a locksmith if you are not able to get your key fob to work. They can reprogram it to ensure that the car can recognize it once more and allows you to use all of its functions. It's generally cheaper to do this instead of buying an entirely new key fob and it will save you money in the end. In certain instances, the locksmith can repair an existing key fob to be able to use it to purchase a new one. This could save you more money in the end.