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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 introduced by Mercedes in 1998. Key fobs that are computer controlled can perform many tasks, including locking and unlocking cars and even starting it.

They work by transmitting an encrypted, rolling message. This protects them from thieves with advanced technology.

Safety

A smart key fob is constantly communicating with the vehicle via radiofrequency waves. It sends out a low-power signal that, when pressed signals the car to unlock doors and begin its engine. The car recognizes the encrypted code from a particular key fob. This means that in the event that the keyfob is stolen, the car can't start.

But a brand new type of hacking could permit thieves to take advantage of that communication. Relay attacks are carried out with devices that transmit at the same rate as the key fob. Thieves can put one of these devices in a purse or hiding location to thwart the lock command from a distance, says How Stuff Works Electronics. It's a problem that could become more common as more motorists switch to smart keys.

A smart key fob isn't only a security tool however, it can make your life easier by automatically taking care of the needs of your vehicle. A key fob connected to your smartphone, for instance can detect your presence and open the doors so you don't need to push a remote button. It could also detect that you're leaving the car and then automatically close it, so you won't forget to lock the doors. Many smart key fobs include an indicator of the battery that tells you in advance that the battery is running low. Also, replacing the battery in most models is a quick and simple procedure that doesn't require any special tools.

Convenience

Smart keys do not need to be physically inserted in an ignition slot to unlock or start the vehicle. Instead, the user requires it to be on them and bring it within the range of the vehicle, as explained by the BMW Group. Some smart car key not working keys, including the Display Key, feature tiny LCD touchscreen that grants users to access features like locking, unlocking, and keyless start directly from their key fob, without the need to connect to the Bluetooth system in the car.

A smart key can also help drivers save time by automating the closing of their car doors after they leave. Consumer Reports says that this feature is available on many vehicles. It also makes it easier for drivers to maneuver into tight spaces without accidentally hitting the door or something else.

Additionally, smart key systems generally 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. In this way a stolen vehicle can't be hotwired if it is equipped with a smart-key because the encrypted signal that the key fob transmits is unique to each vehicle. This technology makes it extremely difficult for thieves steal cars.

Security

Some of the latest electronic features in today's newer vehicles are found in the key fob. These devices can do more than locking and unlocking doors, or making chirping noises to help motorists locate their car in parking areas. However, some owners may be unaware of the full capabilities.

Some smart keys, for instance, will activate the automatic windows and sunroofs on the vehicle when they are you press. A CR auto editor once walked out to her Honda Accord only to find all the windows down and sunroof up. She was grateful for her Smart Key that automatically locked the car.

Some smart keys employ computer-encrypted signals to stop car thieves, according to How Stuff Works. This technology prevents hotwiring, in which thieves take the engine control module (ECM) which is typically located on the front of the engine block. The ECM controls many vital functions like engine power, transmission control, and more.

Other technologies in smart keys include anti-theft encryption and an individual security ID assigned to each key. This can turn off 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, and then verified by a sensor in the car.

Maintenance

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

A smart car key reprogramming car key fob, just like any other electronic device, requires regular maintenance to function correctly. Modern key fobs come with indicators for the batteries to inform drivers when it's time to replace the battery. It is simple to replace the battery and you don't need special tools.

In certain situations however, a smart car key replacement cost key can stop working entirely. If you suspect this is the case, attempt to reset it by getting out of the car and returning to the vehicle. This will let the car recognize that the fob is active and allow it regain functionality.

Contact a locksmith in the event that you are unable to get your key fob working. They can reprogram the fob to ensure that it can be recognized by your car and you can make use of all of its features. This is usually less expensive than buying a brand new fob and could save you money over the course of time. In some cases the locksmith may repair an existing fob so that it can be used to make an entirely new key. This can save you more money in the long run.