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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 known as smart keys, keyless entry or keyless entry fobs. The fobs that are computer controlled are capable of performing various tasks including locking and unlocking the vehicle or beginning it.

They function by broadcasting an encrypted, rolling signal. This makes them more secure to tech-savvy thieves.

Safety

A smart key fob constantly communicates with a vehicle, through radiofrequency signals. It transmits a low-power signal that, when pressed will instruct the car to open doors and start the engine. The car recognizes the unique encryption code that is generated by a specific keyfob. This means that if the keyfob is stolen, the car cannot be started.

A new vulnerability allows thieves to take advantage of this communication. Relay attacks are carried out with devices that transmit at the same rate as the key fob. How Stuff Works Electronics says that thieves could put one of these devices into an unnoticed pocket or a hidden location to stop the key fob's lock command remotely. This is a risk that may become more common as more motorists adopt smart car spare key keys.

Apart from these security features, a smart key fob can simplify your life by automatically attending to your vehicle's needs. For instance the key fob linked to your smartphone can detect your presence and then unlock the doors, so it's not necessary to press a button on the remote. It can also recognize that you're leaving the car and automatically lock it, so that you don't forget to lock your doors. A lot of smart key fobs have an indicator of the battery that tells you well in advance when the battery is getting low. And replacing the battery in most models is a quick, simple process that does not require any special tools.

Convenience

Smart keys do not need to be physically inserted into an ignition slot to unlock or start the vehicle. Instead, the driver has to put it on them and have it within reach of the vehicle, as described by the BMW Group. Certain smart keys, like the Display Key, come with tiny LCD touchscreen that allows users to access features like locking, unlocking, and keyless start directly from their key fob, without having to connect to the Bluetooth system of the car.

Another way that smart keys can help save time for drivers is by automating the process of locking their doors after they leave. This feature is present in a number of vehicles, as per Consumer Reports, and can assist in allowing drivers to move into parking spots that are tight without causing injury to something or someone else.

Smart key systems generally do not transmit the same frequency signal over and over and this can make them more susceptible to relay attacks, says Open Road Auto Group. So, a stolen vehicle cannot be hotwired even if it's equipped with a smart key since the encrypted signal that the key fob transmits is unique to each vehicle. This technology makes it extremely difficult for thieves to steal a car.

Security

Modern cars come with more advanced electronic features than ever before, and many of those are located in the key fob. These devices can do much more than simply locking and unlocking doors, or making chirping noises to help motorists locate their car in parking spaces. However, some owners may be unaware of the full capabilities.

Some smart keys, for instance, can trigger the automatic windows and sunroof of a vehicle when you press. A Auto editor of CR once walked out to her Honda Accord only to find all the windows shut and the sunroofs open. This is one of the reasons she was thankful for her Smart Key, which locked the car automatically.

Certain smart keys use encrypted computer signals to thwart car thieves According to How Stuff Works. This technology stops hotwiring in which thieves steal the engine controller module (ECM) typically located in front of the engine. The ECM controls a variety of vital functions, such as engine power and transmission control.

Other features of smart key copy keys include anti-theft codes and a security ID unique to each key, which can disable the ignition if it's not the correct one. The security ID is a unique code that is transmitted by the ECM from the key to the ignition and then verified by a sensor in the car.

Maintenance

A smart keys for cars car key fob can do more than just unlock your door. It can start your engine, and also activate suspension and brakes remotely. It can also provide details about your vehicle, like fuel level and oil temperature.

Like all electronic equipment smart car key fob requires regular maintenance to function effectively. Modern key fobs come with indicators for the battery that alert the driver when the battery is running low. It is easy to replace the battery and you don't need any special tools.

In some cases the smart key could stop working completely. If you suspect this is the issue, try to reset the smart key by removing the vehicle, then returning inside. This will enable the car to understand that the key fob is in the vehicle and will allow it to function again.

If you can't get your fob to work call a locksmith help. They can reprogram the fob to ensure that it can be recognized by the car again and you can make use of all its features. This is usually cheaper than buying a brand new fob and can save you money over time. In some instances, a locksmith can even fix an existing fob so that it can be used to create a new key. This can save you more money in the long run.