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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. They are computer-controlled and capable of performing a variety of functions including locking and unlocking the car or the car's start-up.

They transmit an encrypted message that is continuously transmitted. This keeps them safer from hackers with a technological edge.

Safety

A smart key fob communicates with vehicles by radiofrequency waves. It transmits a low power signal that, when pressed it, signals the vehicle to unlock doors and begin the engine. The car is programmed to recognize the unique encrypted code of a particular key fob. This means that even if the key fob is stolen, it isn't used to start the car.

But a new type of hacking could let thieves exploit this communication. Relay attacks are carried out with devices that transmit at the same frequency as the key fob. A burglar can put one of these devices in a purse or hiding spot to jam the lock command from a distance, says How Stuff Works Electronics. This is a problem that is likely to become more prevalent as more and more drivers adopt smart keys.

Apart from these security features, the smart key car key fob can make life easier by automatically adjusting to your vehicle's needs. For example an electronic key fob connected 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 also can detect that you are leaving the car and then automatically lock it, so you don't forget to lock your doors. Many smart key fobs feature a battery indicator that alerts you when the battery is depleted. Most models allow you to replace the battery quickly and conveniently without any tools or equipment required.

Convenience

As opposed to a traditional metal key Smart keys do not need to be physically inserted into the ignition slot in order to unlock or start a car. Instead, the driver requires it to be on them and bring it within the range of the vehicle, as explained by the BMW Group. Some smart keys, like the Display Key, come with an incredibly small LCD touchscreen that allows drivers to access features such as locking, unlocking and keyless start directly from their key fob without the need to connect to the Bluetooth system in the car.

Smart keys can also save drivers time by automating the closing of their car doors after they leave. This feature is available in a number of automobiles, according to Consumer Reports, and can assist in allowing drivers to move into parking spots that are tight without accidentally squeezing something or the person.

Smart key systems do not typically transmit the same frequency signal over and over, as this could make them more vulnerable to relay attacks, says Open Road Auto Group. As such a stolen vehicle can't be hotwired even if it's equipped with a smart-key because the encrypted signal that the key fob transmits is unique to each vehicle. This makes it extremely difficult for thieves to steal a vehicle.

Security

Some of the top-of-the-line electronic features in today's modern automobiles are contained in the key fob. These devices are capable of more than just locking and unlocking doors or making chirping sounds to assist drivers locate their vehicle in parking lots. However there are some who are unaware of the full capabilities.

For example, some smart 450 key programming keys can activate windows that automatically open and sunroof when activated. 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 thankful for her Smart Key, which locked the vehicle automatically.

Certain smart keys utilize computer-encrypted signals to deter car thieves, according to How Stuff Works. This technology prevents hotwiring, in which thieves take the vehicle's engine control module (ECM), which is usually found in the front of the engine block. The ECM regulates a variety of vital functions, including engine power, transmission control and more.

Other technologies used in smart keys include anti-theft codes and an individual security ID assigned to each key, which could disable the ignition in the event that it's not the correct one. The security ID is a special code that's transmitted from the ECM to the key once it's put into the ignition and then confirmed by a sensor in the car key fob replacement.

Maintenance

A smart car key fob can do more than just unlock your door. It can remotely start your engine, turn on suspension and brakes, and even start your vehicle. It can also provide details about your vehicle, such as the level of your fuel and oil temperatures.

A smart car key fob, as any other electronic device requires regular maintenance to function efficiently. The majority of modern key fobs have indicators for batteries that notify the driver when the battery is low. Replacing the battery is a straightforward procedure, and no specialist tools are required.

In some instances the smart car key fob programming key could stop working completely. If you suspect this is the case, try to reset it by getting out of the car and then returning inside. This will allow the car to recognize that the fob is still present and allow it to be functional again.

If you are unable to connect your fob, contact a locksmith to help. They can reprogram your fob so that it can be recognized by the car and you are able to use all of its features. It's usually more cost-effective to do this than buy an entirely new key fob and it will save you money in the end. In certain instances, the locksmith can fix an existing key fob to be able to use it as a replacement. This can save you more money in the long run.