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What Can a Smart Car Key Fob Do For You?
They are also known as fobs, keysless entry or smart keys, they were first introduced by Mercedes in 1998. These key fobs controlled by computers can accomplish a variety of tasks, such as locking and unlocking a vehicle and even starting it.
They work by transmitting an encrypted message that is continuously transmitted. This makes them more secure to thieves who are tech-savvy.
Safety
A smart key fob continually communicates with vehicles via radiofrequency waves. It sends out a low-power signal that, when pressed signals the car to unlock doors and start the engine. The car can recognize the unique encrypted code that is generated by a specific keyfob. This means that even when the key fob is stolen, it can't be used to start the car.
But a new form of hacking technique can let thieves exploit this communication. Relay attacks are based on devices that transmit on the same frequency as the key fob. How Stuff Works Electronics says that a burglar could slip one of these devices into a pocket or hidden spot to stop the remote lock command. This is a risk that may become more common, as more drivers are switching to smart 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. For example the key fob connected to your smartphone will detect your presence and then unlock the doors, meaning you don't have to hit a button on the remote. It also can detect that you're leaving the car and automatically lock it, so that you don't forget to lock your doors. Many smart key fobs include an indicator for the battery that alerts you ahead of time if the battery is at a low level. The majority of models let you replace the battery quickly and conveniently without the need for any special tools.
Convenience
Smart keys are not required to be physically inserted into an ignition slot to unlock or start the car. Rather, the driver simply must have it on their person and have it within reach of the vehicle, as explained by the BMW Group. Some smart keys, like the Display Key, feature tiny LCD touchscreen that allows users access to features like locking, unlocking and keyless start directly from their key fob, without having to connect to the Bluetooth system of the car.
A smart key could also save drivers time by automating the locking of their car doors when they leave. Consumer Reports says that this feature is offered on a number of automobiles. It can also make it easier for drivers to maneuver around tight spaces without accidentally crushing someone or something.
Additionally, smart key systems typically do not send the same frequency signal over and over, as this could make them more vulnerable to relay attacks, as explained by Open Road Auto Group. As such the vehicle that is stolen 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 car. This technology makes it extremely difficult for thieves to steal a vehicle.
Security
Modern cars have the most advanced electronic features ever before, and a few of them are contained inside the key fob. These gadgets are capable of much more than locking and unlocking doors or making chirping noises to help drivers locate their vehicle in parking spaces. However many owners are unaware of the full capabilities.
For example, some smart keys are able to activate a vehicle's automatic windows and sunroof once they are pressed. One CR auto editor was able to walk into her Honda Accord to find the windows shut and the sunroof wide open. This is one of the reasons she was so grateful for her Smart Key, which locked the car automatically.
According to How Stuff Works, some smart keys make use of computer-encrypted signals to protect against car thieves. This technology stops hotwiring, which is when thieves steal the engine control module (ECM) which is typically located on the front of the engine block. The ECM regulates a variety of essential functions, including engine power and transmission control.
Other technologies used in smart keys include anti-theft code and a unique security ID assigned to each key, which could disable the ignition in the event that it's not the right one. The security ID is a specific code that is transmitted from the ECM to the key when it's inserted in the ignition and verified by a sensor inside the car.
Maintenance
A smart car key fob does more than just unlock your door. It can remotely start your engine, trigger the brakes and suspension and even start your vehicle. It also provides information about your vehicle such as fuel level and the temperature of your oil.
Like any piece of electronic equipment the smart car key fob needs regular maintenance to operate properly. The majority of modern key fobs have indicators for batteries that inform the driver when the battery is low. Replacing the battery is a straightforward procedure, and no specialized tools are required.
In some instances the smart key could cease to function completely. If you suspect this to be the case, attempt to reset it by leaving the vehicle and then coming back inside. This will let the car recognize that the fob is present and allow it to return to normal operation.
If smart key for cars are unable to get your fob to work call a locksmith help. They can reprogram the fob to ensure that it can be recognized by the car and you can use all of its features. This is usually less expensive than purchasing a new fob and can save you money over the course of time. In certain instances, the locksmith can fix an existing key fob to be able to use it for a replacement. This can save you more money in the end.