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Vehicle Smart Key Technology

Vehicle smart key technology allows drivers to unlock and start the car by pressing the door handle or placing the key in the pocket. It also allows a variety of other adjustments, like seat positions as well as internal temperature settings stereo presets, and mirror positioning.

This could also create security issues.

Security

smart forfour key keys are computerized key fobs which communicate with the vehicle through an embedded antenna. It can unlock doors and activate the motor. Smart key fobs, unlike conventional keys that emit the same frequency each time they're pulled, transmit encrypted signals that are only compatible with the vehicle to which they belong. This makes it more difficult for criminals with a technological edge to detect or spoof the signal, and use your key to steal your car.

Mercedes' Keyless Go system for instance, has an internal transponder that identifies the driver's key. When the Smart Key comes within 1.5 meters of a car it automatically unlocks the door and tailgate, and the engine starts when a button on the key is hit.

Additionally some smart keyslike those made by BMW include individual user settings that allow the driver to adjust the seat, mirrors and the steering wheel's position as well as audio preferences at the push of one button. They also come with a backup lock that blocks the vehicle from starting without the key.

This technology helps drivers avoid being unable to lock their vehicle especially when looking in the bag or purse for keys on parking lots with strangers, or on a street where crime is high. Many systems will also alert drivers when the battery in their keys is low, but this feature may differ from manufacturer to manufacturer.

Convenience

The smart key is perfect for those who are trying to get to their destination. You can lock, unlock and start your car by pressing the door handle or the trunk release. The key fob can also communicate with your phone to keep track of charging locations, charging times and other details about the vehicle, according to Popular Mechanics.

One of the biggest advantages is that you aren't able to accidentally lose your keys. The key fob communicates to an antenna inside the vehicle to determine whether it is within range. If it's not, the engine won't start. This will deter thieves from the vehicle and stealing its parts.

The smart key also makes use of rolling codes to deter hacking attempts and cloning, says BMW. The computer inside the vehicle recognizes the code and validates it prior to launching the engine. The majority of systems also have a backup mechanical system that is an unnoticed key blade for styling purposes.

Modern smart keys also recognize which keys are in use and adjust the car settings accordingly, notes How Stuff Works Electronics. If you turn on the vehicle while holding the key in your hands for instance the windows as well as the sunroof will be opened to let air circulate the interior. You can also set the speed limit to only be in effect when the car is powered by the specified key. This feature could be useful when you lend your car to a driver who has little experience.

Battery Life

If you're looking for a way to get more mileage out of your vehicle's smart key, or just want to make sure it won't die during a trip to the grocery store, you can activate an auto manufacturer-specific feature called Power Saving Mode. To do this you need to press and hold the lock button while pressing the unlock button.

This will prevent your smart key fob's ability to send or receiving any radio waves which will increase its battery's life considerably. You can always reactivate the function by pressing both the unlock and lock buttons again.

Some smart keys also have anti-theft features to prevent them from being copied by thieves. Mercedes-Benz smart key uses rolling codes to block unauthorised access. When the smart key is inserted in the ignition, a computer inside the car checks the code in milliseconds prior to starting the engine. BMW has a similar system with its Display Key, which comes with a small LCD color touchscreen on the smart key for added convenience, and lets drivers lock and unlock their vehicles without ever taking the key from their pockets.

If you're considering purchasing a new car that has a smart forfour key replacement key, or need the battery in your smart key fob replaced, contact Pop-A-Lock for a quick and efficient service. We can replace the battery in any smart key, and our mobile locksmiths can assist you in setting the system to make sure your vehicle recognizes it.

Special Cases

While smart keys are not security-wise, they can be used to deter thieves. smart car key programming key fobs use rolling security codes that prevent theft, and when placed in the ignition, the vehicle's computer checks the code in milliseconds. Mercedes-Benz invented this technology, which is currently utilized by luxury car brands.

A smart key system will continue to work even if you forget the key in your trunk or leave it in a restaurant. Certain systems will also inform the driver when the battery is running low. Certain brands provide key covers specifically designed for smart key copy keys to ensure that the fob is protected from harm.