Vehicle Smart Key Technology

Smart keys for vehicles allow drivers to open and start the car by pressing the door handle or putting 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.

However, this could result in security issues.

Security

Smart keys are advanced key fobs with computers that communicate with the vehicle using one of the antennas built into the car to unlock the doors and begin the engine. Smart key fobs, in contrast to traditional keys that emit the same frequency every time they're used, transmit encrypted signals which are only compatible with the vehicle to which they belong. This makes it difficult for thieves with advanced technology to detect or spoof the signal, and then use your key to steal your vehicle.

For instance, Mercedes' system -- called Keyless Go -- has an internal transponder that identifies the driver's keys. The Smart Key automatically unlocks and opens the doors and tailgate when it is within 1.5 meters. It also allows you to start the engine by pressing a button on its key.

Certain smart keys, like the ones made by BMW and Mercedes-Benz, also come with user-specific settings that allow the driver to alter the seat, mirrors and the steering wheel's position and audio preferences with the push of a button. They also come with a backup lock that prevents the vehicle from running without the key.

This technology assists drivers from locking their cars, especially when they are rummaging through their purses or backpack to find keys in a parking space full of strangers or in an area with high crime rates. Many systems will also alert drivers when the battery in their keys is low, though this feature varies by the manufacturer.

Convenience

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

It isn't safe to lock your keys in the car. The key fob communicates with the antenna inside the vehicle to determine if the key is in range. If it's not, the engine will not start. This can deter thieves who would steal your car to sell the parts.

The smart key also employs rolling codes to protect against hacking attempts and cloning, says BMW. The computer in the vehicle is able to recognize and verify the code before starting the motor. The majority of systems have a mechanical back-up in the form an invisible key blade.

Modern smart keys also know which key is in use and adjust the car settings in line with the use of the key, says How Stuff Works Electronics. For example, if you turn on the car while holding the key fob in your hands, the windows and sunroof will open to let air circulate through the cabin. You can also set a speed limit that will only be applied when the vehicle is started using the chosen key, a feature that could be useful when loaning 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 it, press and hold the lock button while pressing the unlock button.

This will make it impossible for your smart key fob to send or receive any radio waves. This will greatly extend the battery's life. It is possible to reactivate the function by pressing the lock and unlock buttons again.

Some smart keys also have anti-theft features that prevent them from being copied by thieves. Mercedes-Benz smart forfour key programming keys employ rolling codes to prevent the unauthorized access. The computer in the car checks the code milliseconds after the smart key is placed. BMW offers a similar system with its Display Key, which includes an LCD touchscreen on the smart fortwo key programming key for added convenience, and lets drivers lock, unlock, and start 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 forfour key key fob considering purchasing a vehicle with a smart-key. We can replace the battery on any smart key and our mobile locksmiths are able to assist you in setting the system so that your vehicle recognizes it.

Special Cases

While smart key replacement near me keys aren't safe from theft, they do assist to discourage thieves. smart car key repair keys are designed to prevent hackers from hacking into the system. When placed in the ignition of the vehicle the computer validates the code in milliseconds. Mercedes-Benz created this technology, which is currently used by luxury car manufacturers.

A smart key system will work even if you don't remember the key in the trunk or leave it at an establishment. Certain systems will notify the driver when the battery is not fully charged. Certain brands provide keys with covers specifically designed for Smart Keys (Trade-Britanica.Trade), to shield the fob from damage.