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Vehicle smart key replacement Key Technology

The technology of smart keys in vehicles enables drivers to unlock and start their car by simply pressing the door handle, or placing the key into the pocket. It also allows for various other adjustments such as seat position the internal temperature setting and mirror position.

This could also raise security worries.

Security

Smart keys are highly sophisticated key fobs with computers that communicate with vehicles via one of the antennas that are embedded in the vehicle to unlock the doors and begin the engine. In contrast to conventional keys that emit the identical frequency signal each time they are press, smart key fobs transmit encrypted signals that only match the car they belong to. This makes it harder for tech-savvy criminals to detect or spoof the signal and use your key to steal your car.

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

Certain smart keys, like the ones made by BMW, also have user-specific settings. These allow the driver to alter the mirrors, seat and the steering wheel's position and audio preferences with the press of a single button. They also come with a backup lock that blocks the vehicle from starting without the key.

This technology can prevent drivers from locking their vehicles, particularly when fumbling in a purse or backpack to locate keys in a parking lot filled with strangers or on an area with high crime rates. Many systems also notify motorists when their keys are running low on battery, but this feature is different for each manufacturer.

Convenience

The smart key is perfect for those in a hurry to get somewhere. By pressing the button on your trunk release lever or door handle, you can unlock, lock and begin your vehicle. Popular Mechanics explains that the key fob can also be used to track charging or location as well as other vehicle information.

A major benefit is that you won't accidentally lose your keys. The key fob communicates with an antenna in the vehicle to determine whether it is within the range. If it's not, the engine won't start. This will deter thieves from the vehicle and stealing parts of it.

BMW reports that the smart key utilizes rolling codes to ward off hacking and cloning. The vehicle's computer detects and validates the code prior to launching the motor. Most systems have a physical backup system in the form of a hidden key blade.

Modern smart keys also know the key that is being used and adjust the vehicle settings in line with the use of the key, says How Stuff Works Electronics. For instance, if you switch on the car smart key replacement while holding the key fob in the palm of your hand, the windows and sunroof can be opened to ventilate the cabin. You can also set the speed limit which will only apply when the vehicle is started using the chosen key, a feature that could be helpful when lending your car to an inexperienced 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 it simply press and hold the lock button while pressing the unlock button.

This will block your smart key fob to transmit or receive radio waves. This will greatly extend the life of your battery. You can always restart this feature by pressing the unlock and lock buttons again.

Certain smart keys also have anti-theft capabilities that protect them from being copied by thieves. Mercedes-Benz smart 450 key Programming keys employ rolling codes to block access by anyone who is not authorized to use it. The car's computer is able to verify the code within milliseconds following the smart key is inserted. BMW uses a similar method with its Display Key, which comes with a small LCD color touchscreen on the smart key for ease of use and allows drivers to lock and unlock their cars without ever removing it from their pockets.

Contact us at Pop-A Lock if you require to replace the battery on your smart key fob should you be thinking of purchasing a car that has a smart-key. Our mobile locksmiths will change the battery on any smart key, and will help to set it up so that your car smart key recognizes it.

Special Cases

Although smart key replacement near me keys aren't secure against theft, they can help to deter thieves. Smart keys utilize rolling security codes that prevent theft, and when placed in the ignition, the car's computer verifies the code within milliseconds. Mercedes-Benz developed this technology, which is currently utilized by luxury car brands.

Another helpful feature is that many smart key systems will continue to work if the user forgot the key in the trunk, left it at the restaurant or if it is lost on hiking. Certain systems will notify the driver when the battery is not fully charged. Certain brands provide key covers specifically designed for smart keys, to shield the fob from damage.