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Vehicle Smart Key Technology

The smart key technology found in vehicles allows drivers to unlock and start their car key remote replacement by just touching the door handle, or putting the key in the pocket. It also allows for a variety of other adjustments, such as seating positions and temperature settings inside the car, mirror positioning and stereo presets.

This can also lead to security worries.

Security

Smart keys are computerized key fobs which communicate with the vehicle via an embedded antenna to unlock doors and start the motor. Smart key fobs, in contrast to traditional keys, which emit the same frequency each time they're pulled, transmit encrypted signals which are only compatible with the particular car to which they belong. This makes it difficult for thieves with the latest technology to fake or intercept the signal and use the key to take your car.

For example, Mercedes' system -- called Keyless Go -- has an internal transponder that can identify the key of the driver. The Smart Key automatically unlocks and opens the doors and the tailgate when it is within 1.5 meters. It also starts the engine by pressing the key.

Some smart keys, like those made by BMW and Mercedes-Benz, also come with user-specific settings, which allow users to alter the mirrors, seat and steering wheel's position and audio preferences at the touch of a single button. They also come with a backup lock that prevents the vehicle from starting if it is not connected to the key.

This technology protects drivers from getting their car locked accidentally and causing damage to their vehicle, particularly when searching backpacks or purses for keys on parking lots with people who are not familiar with the area or where crime is high. Some systems will also notify drivers if the key battery is depleted, though this feature varies from manufacturer manufacturer.

Convenience

The smart key is ideal for those who are in a hurry to get somewhere. You can unlock, lock and start your car by pressing a button on the door handle or the trunk release. Popular Mechanics explains that the key fob can also be used to monitor charging or location as well as other vehicle information.

You can't accidentally lock your keys inside the car. The key fob communicates with an antenna inside the vehicle to determine whether it's in range. If it's not, the engine will not start. This is a deterrent to thieves who could take your vehicle and sell its parts.

The smart key uses rolling codes to protect against hacking attempts and cloning, reports BMW. The computer inside the vehicle can recognize and verify the code prior to launching the motor. Most systems come with a mechanical backup in the form of an unnoticed key blade.

Modern smart keys also know the key that is being used and adjust the settings of the vehicle in line with the use of the key, says how to unlock a smart car without a key Stuff Works Electronics. If you start the vehicle while holding the key in your hand for instance the windows as well as the sunroof will open to allow air circulation to the interior. You can also set an upper limit on speed that will only be applied when the vehicle is started with the selected key, a feature that could be useful if you loan your vehicle to a novice driver.

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 activate this feature, hold the lock button until you release it and press the unlock button.

This will stop your smart key fob from being able to send or receive any radio waves. This will significantly extend its battery life. It is possible to reactivate the function by pressing both the unlock and lock button again.

Certain smart keys also come with anti-theft functions that stop them from being copied by thieves. Mercedes-Benz smart keys employ rolling codes to stop unauthorised access. The computer in the car examines the code in milliseconds after the smart key is put in. BMW has a similar system with its Display Key, which comes with an LCD touchscreen on the smart key for ease of use and lets drivers lock, unlock, and start their cars without ever removing it from their pockets.

If you're thinking about buying a new car with a smart key, or you need the battery of your smart key fob replaced, contact Pop-A-Lock for a fast and easy service. Our mobile locksmiths will replace the battery on any smart key and help you set it up so that your car smart key recognizes it.

Special Cases

Smart keys are not 100 100% theft-proof, but they aid in deterring thieves. Smart key fobs use rolling security codes to avoid theft, and when placed in the ignition, the car's computer verifies the code within milliseconds. Mercedes-Benz invented this technology, which is now used by luxury car manufacturers.

A smart forfour key key system will continue to work even if you forget the key in your trunk or leave it at an establishment. Some systems will alert the driver when the battery is not fully charged. Certain brands provide key covers specifically made for smart car key case keys that ensure that the fob is protected from damage.