Smart Car Key: The Good The Bad And The Ugly

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Smart keys are wireless remotes that allow you to unlock doors and open the trunk without the necessity of a traditional mechanical blade. It also allows you to start the vehicle without having to turn a key.

The majority of smart keys have battery indicators and warn you well in advance of a low charge. It's easy to replace the battery with no special tools.

Convenience

Smart keys can open doors, trunks and turn on the engine of the car without the driver needing to use a key made of metal. They also come with features designed to help deter break-ins and vehicle theft, such as the panic button, which creates a loud sound to deter possible thieves or suspicious individuals in isolated areas, such as underground garages for parking.

Key fobs accomplish all of these functions by sending radio signals between the car key fob and the car, using low-power wireless technology. This is a wonderful feature, particularly for drivers on the go who don't have a lot of time.

Smart keys are usually more like plastic cards than actual keys. They can be used to unlock the trunk or doors when you press a button on the fob. Some even have an integrated touchscreen that allows drivers to manage certain settings on their vehicle, such as climate and audio.

The RFID signal that is transmitted between the car and a key fob is unique, encoded and tied to the vehicle's computer. This makes it nearly impossible for hackers with the right skills to connect a stolen car equipped with the key fob. These fobs are also programmable to transmit a different frequency signal every time they're used, to ensure that the computer doesn't recognize that old one as the true signal.

Security

Many people are hesitant to make the switch to digital car keys for the reason that they are worried about security. While having a physical key fob to hand does feel more secure, it's important to recognize that digital keys are also more secure than you might think. They're secure, and the signal they transmit to a vehicle is analyzed by a specific computer onboard. The vehicle won't be able to start in the event that the smart key fob is damaged.

In contrast to traditional key fobs smart car key fob keys make use of built-in antennas in your vehicle and the radio pulse generator inside the key fob to communicate with your vehicle and perform functions such as unlocking and opening it. This feature lets you access your vehicle without having to insert keys that are physically placed in the ignition or lock, which is often a hassle.

Many systems offer an alternative method of opening and starting your vehicle if you lose your smartkey, or if the battery fails. For instance, emergency starting can be accomplished by placing the key into a slot or putting it near a specific area in the cockpit, where an inductive device that can transfer energy is hidden.

Additionally, most smart keys also have a low-battery indicator that warns you before it is completely dead. You can replace the battery on your own in the event of a need.

Auto-adjusting settings

Instead of physical keys rather than a physical key, the smart key uses radio waves to unlock and lock the vehicle. They're also able to remotely start your engine and track the vehicle's location in case you forget where it's parked.

Some smart keys are programmed to automatically adjust the interior and exterior of the vehicle according to the key that is detected. The car can adjust the position of seats as well as the settings for mirrors and climate control depending on the key being used. This is useful if you want to restrict certain features or have multiple drivers.

smart car key keys also have the advantage of encryption, which can prevent theft. This is not possible with traditional keys. This technology makes it extremely difficult for thieves who are tech-savvy to take over a vehicle through imitating the frequency of a valid signal, according to How Stuff Works Electronics. Smart keys transmit a unique encrypted message each time the remote is unlocked.

The battery of a smart car key fob key will eventually run out as does any other battery-powered device. The majority of systems have a backup system to open the car and start it in the event that the battery fails. The emergency method is different, but it usually involves keeping the key within range of the lock sensor on the car or pressing a key button that activates the emergency start.

Battery backup

Modern smart keys, sometimes referred to as keyless entry systems or passive entry, utilize a transmitter and a receiver to unlock your car. The transmitter is located in the key fob you carry around, and the receivers are found in and around your vehicle. When you drive by the vehicle, the radio frequency signal from your smart key is interpreted by the receivers, and it activates the doors and ignition.

While this system comes with many advantages, including the ability to not have to fumble in the dark to find keys, it could be vulnerable to certain types of attacks. For instance, if a key's battery fails or it is stolen, a third party could detect the low-frequency transmission signals from your key and open your car smart key, according to How Stuff Works Electronics. Most smart key for car keys have encrypted signals, which makes hacking more difficult.

However, these systems can also be impacted by electromagnetic fields generated by cell phones, computers and other devices. If you notice that your smart key fob isn't functioning correctly, it could be caused by an interference issue. In that case, you should not put your key in proximity to any device until the fob's battery has been replaced. Many smart keys will notify you when their batteries are empty and the process of replacing them is quite simple.