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What Can a Smart Car Key Fob Do For You?

Known as fobs, keyless entry or smart keys, they were first introduced by Mercedes in 1998. Key fobs that are computer controlled can accomplish a variety of tasks, such as locking and unlocking cars as well as launching it.

They transmit a rolling encrypted message. This keeps them safer from thieves who are tech-savvy.

Safety

A smart key fob continuously communicates with the vehicle using radiofrequency signals. It transmits a low-power signal that, when pressed tells the car to unlock doors and start its engine. The car can recognize the unique encrypted code that is generated by a specific key fob. This means that even if the key fob is stolen, it won't be used to start the car.

A new vulnerability allows thieves to take advantage of this method of communication. Relay attacks utilize devices that transmit at the same frequency as the key fob. A burglar can put one of these gadgets in a pocket or a hiding area to disable the lock command from a distance, according to how to unlock a smart car without a key Stuff Works Electronics. It's a problem that is likely to become more prevalent as more motorists switch to smart keys.

In addition to these security features, an intelligent key fob could make life easier by automatically tending to the needs of your vehicle. A key fob linked to your smartphone, for example can detect your presence and then unlock the doors, so you do not have to hit the remote button. It could also detect that you are leaving the car and automatically lock it, so you won't forget to lock the doors. Many smart key fobs have an indicator for the battery that warns you when the battery is low. Most models allow you to replace the battery quickly and easily without any tools or equipment required.

Convenience

Smart keys are not required to be physically inserted in an ignition slot to unlock or start the vehicle. BMW Group explains that the driver is only required to bring the key within range of the car. Certain smart keys, like the Display Key, feature small LCD touchscreen that grants drivers to access features like locking, unlocking and keyless start directly from their key fob, without needing to connect to the Bluetooth system of the car.

Smart keys can also help drivers save time by automating the closing of their car doors when they leave. Consumer Reports says that this feature is present on a variety of vehicles. It also makes it easier for drivers to maneuver into tight spaces without accidentally crushing someone or something.

Additionally, smart key systems usually do not send the same frequency signal repeatedly, as this could make them more vulnerable to relay attacks, says Open Road Auto Group. In this way a stolen vehicle can't be wired hot if it's equipped with a smart key as the encrypted signal that the key fob transmits is unique to each car. This technology makes it difficult for thieves steal a car.

Security

A few of the most advanced electronic features in today's newer automobiles can be found in the key fob. These devices do more than simply open and close doors, or make chirping noises to help drivers find their car in a parking area however, some owners might not be aware of everything that these smart key fobs can do.

For instance, some smart keys can trigger a vehicle's automatic windows and sunroof when pressed. One auto editor from CR went into her Honda Accord to find the windows closed and the sunroof fully open. She was grateful for her Smart Key that automatically locked the car.

According to How Stuff Works, some smart keys make use of computer-encrypted signals to prevent car thieves from stealing. This technology stops hotwiring in which thieves steal the engine controller module (ECM), usually located in front of the engine. The ECM manages many essential functions like engine power, transmission control, and many more.

Smart keys also include anti-theft codes and a unique ID security code that is assigned to each key. This could stop ignition when 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 in the car.

Maintenance

Smart car key fobs do more than unlock the door. It can remotely start your engine, activate suspension and brakes, and even start your vehicle. It also can provide information about your vehicle, like the level of fuel and temperature of the oil.

Like any piece of electronic equipment like a smart car key repair car key fob needs regular maintenance to ensure it functions correctly. Modern key fobs feature indicators for batteries that notify drivers when it's time to replace the battery. Replacing the battery is a simple procedure, and no specialist tools are required.

In some cases however the smart key might cease to function completely. If you suspect that's the case, you can reset it by getting out of the vehicle and then coming back inside. This will allow the car to detect that the key fob is still inside the vehicle, and allow it to be used again.

Contact a locksmith if cannot get the key fob to work. They can reprogram the fob so that it is recognized by the car and you can utilize all its features. It's usually more cost-effective to do this than buying a new key fob and it could save you money in the long run. In some cases locksmiths can fix an existing fob to be used to create new keys. This can save you money in the end.