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What Can a Smart Car Key Fob Do For You?

Known as fobs, keyless entry or smart keys, they were first introduced by Mercedes in 1998. The fobs that are computer controlled are capable of carrying out a variety of tasks like locking and unlocking the car or getting it started.

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

Safety

A smart key fob continually communicates with the vehicle through radiofrequency signals. It sends a low-power signal that, when pressed the button, instructs the vehicle to unlock doors and start the engine. The car recognizes the unique encryption code from a specific keyfob. This means that even in the event that the key fob gets stolen, it won't be used to start the car.

But a new type of hacking could enable thieves to gain access to that communication. Relay attacks are carried out using devices that transmit at the same rate as a key fob. The thief could place one of these gadgets in a pocket or a hiding in a place to block the lock command from a distance, according how To unlock A smart car without a key Stuff Works Electronics. This issue could become more commonplace as more people switch to smart keys.

A smart key fob isn't just a security device however, it can simplify your life by automatically taking care of the needs of your vehicle. For example, a key fob that's connected to your smartphone will detect your presence and then unlock the doors, meaning you don't have to press the remote button. It can also sense when you're leaving and auto-lock the car, so you don't have to fret about forgetting to lock the doors. A majority of smart key fobs have an indicator for the battery that warns you when the battery is depleted. The majority of models let you replace the battery quickly and without any tools or equipment required.

Convenience

Smart keys are not required to be inserted physically into an ignition slot to open or start the car. BMW Group explains that the driver is only required to bring the key within range of the car. Some smart keys, like the Display Key, feature tiny LCD touchscreen that grants users access to features like locking, unlocking and keyless start directly from their key fob, without the need to connect to the Bluetooth system of the car.

A smart key can also help drivers save time by automating the locking of their car doors when they leave. This feature is found in a wide range of vehicles, according to Consumer Reports, and can help get into tight parking spaces without accidentally hitting something or someone else.

Additionally, smart key systems usually do not transmit the same frequency signal over and over in order to make them more vulnerable to relay attacks, explains Open Road Auto Group. As such it is impossible for a stolen car to be wired hot if it's equipped with a smart key since the encrypted signal that the key fob transmits is unique to each car. This makes it extremely difficult for thieves to steal a vehicle.

Security

Some of the high-tech electronic features found in the latest vehicles are found in the key fob. These devices are capable of much more than locking and unlocking doors, or making chirping noises to help drivers locate their car in parking lots. However many owners are unaware of the full capabilities.

Certain smart keys, for example, can activate the automatic windows and sunroofs on the vehicle when they are the key is pressed. One CR auto editor was able to walk into her Honda Accord to find the windows completely shut and the sunroof open. She was grateful for her Smart Key that automatically locked the car.

Certain smart keys utilize computer-encrypted signals to stop car thieves according to how much is a replacement smart car key Stuff Works. This technology is able to prevent hotwiring which is when thieves steal the vehicle's engine control module (ECM) which is usually located on the front of the engine block. The ECM manages a range of vital functions, such as transmission control and engine power.

Other technologies used in smart keys include anti-theft encryption and a unique security ID that is assigned to each key, which can block the ignition if it's not the right one. The security ID is a special code that's sent from the ECM to the key when it's put into the ignition and then verified by a sensor inside the car.

Maintenance

Smart car key fobs do more than simply unlock the door. It can remotely start your engine, trigger the brakes and suspension and even start your car. It also can provide information about your vehicle, such as fuel level and oil temperature.

Like all electronic equipment like a smart car key fob needs regular maintenance to function correctly. Key fobs that are modern have indicators for batteries that inform the driver when the battery is low. It is easy to replace the battery and you don't require special tools.

In some cases, however, a smart key might stop working completely. If you suspect this is the case, try to reset it by taking the car out and then re-entering it. This will enable the car to understand that the key fob is in the vehicle and will allow it to function again.

If you're unable to make your fob work, contact a locksmith to help. They can reprogram it so that your vehicle recognizes it and allows you to utilize all of its features. It's usually more cost-effective to do this instead of buying the new fob for your key, and it can save you money in the end. In some cases, a locksmith can even repair an existing fob to be used to make a new key. This can save you more money in the end.