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What Can a Smart Car Key Fob Do For You?

Known as fobs or keyless entry or smart keys, they were introduced by Mercedes in 1998. The fobs that are computer controlled are capable of performing a variety of functions, such as locking and unlocking the vehicle or beginning it.

They operate by broadcasting an encrypted and rolling signal. This keeps them safer from hackers with a technological edge.

Safety

A smart key fob constantly communicates with vehicles via radiofrequency waves. It transmits a low power signal that, upon pressing it, prompts the vehicle 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 a key fob is stolen, the car can't be started.

But a new form of hacking could allow thieves to exploit that communication. Relay attacks are based on devices that transmit on the exact frequency as the key fob. How Stuff Works Electronics says that thieves can put one of these devices inside an unnoticed pocket or a hidden location to stop the remote control of the lock. This is a problem which could become more frequent as more and more drivers are switching to smart keys.

A smart key fob isn't only a security tool, but it can also make your life easier by automatically taking care of the requirements of your vehicle. A key fob that is connected to your smartphone, for instance can detect your presence and unlock the doors, so you don't have to press the remote button. It can also sense that you are leaving the vehicle and automatically lock it, so that you aren't tempted to forget to lock the doors. A lot of smart key fobs come with an indicator for the battery that warns you when the battery is depleted. Most models allow you to replace the battery quickly and without any special tools.

Convenience

Contrary to traditional keys made of metal, smart keys do not need to be physically inserted into an ignition slot in order to unlock or start the car. Instead, the driver requires it to be on their person and have it within reach of the vehicle, as described by the BMW Group. Certain smart keys, like the Display Key, come with a small LCD touchscreen that gives drivers access to features such as locking, unlocking, and keyless starting directly from their key fob, without having to connect to the Bluetooth system in the car.

A smart key could also help drivers save time by automating the locking of their car doors after they leave. This feature is available in a number of vehicles, as per Consumer Reports, and can also make it easier to get into tight parking spaces without accidentally squeezing something someone else.

Smart key systems usually do not send the same frequency signal repeatedly, as this could make them more vulnerable to relay attacks, according to Open Road Auto Group. So a stolen vehicle can't be connected to a hotwire if equipped with a smart key since the encrypted signal that the key fob transmits is unique to each car. This technology makes it extremely difficult for thieves to steal a car.

Security

Modern cars have more high-tech electronic features than ever before, and many of those are located on the key fob. These devices do more than simply lock and unlock doors, or make chirping sounds that aid drivers in finding their car in a parking space, but some owners may not be aware of everything the things these smart key fobs do.

Some smart key market keys, for example, will trigger the auto windows and sunroofs of an automobile when you press. One CR auto editor entered her Honda Accord to find the windows shut and the sunroof fully open. That's one of the reasons she was so grateful for her Smart Key, which locked the car automatically.

According to how to unlock a smart car without a key Stuff Works, some smart keys employ computer-encrypted signals to prevent car thieves from stealing. This technology stops hotwiring in which thieves steal the engine controller module (ECM) which is usually located in front of the engine. The ECM controls many vital functions like engine power, transmission control and other functions.

Other smart keys' features include anti-theft coding and a unique security ID that is assigned to each key. This can block the ignition if it's not the correct one. The security ID is a number that is transmitted by the ECM from the key to the ignition followed by verification by a sensor inside the car Key cutting and programming price.

Maintenance

A smart car key fob can do much more than unlock your door. It can remotely start your engine, turn on suspension and brakes, and even start your vehicle. It also can provide information about your vehicle, including fuel level and the temperature of your oil.

A smart car key fob, just like every other electronic device requires regular maintenance in order to function correctly. Modern key fobs come with battery indicators to alert the driver when it's time to replace the battery. It's simple to replace the battery and you don't need any special tools.

In certain situations however, a smart key could stop functioning completely. If you suspect this to be the case, you can reset it by leaving the vehicle and then returning inside. This will let the car recognize that the fob is still active and allow it return to normal operation.

If you can't get your fob to function, contact a locksmith to help. They can reprogram it so that the car recognizes it and allows you to use all of its features. It's typically more affordable to do this than buy a new key fob, and it could save money in the long run. In certain instances, the locksmith can repair an existing key fob to be able use it for a new one. This can save you money in the end.