Vehicle Smart Key Technology

The smart key technology that is found in vehicles lets drivers unlock and start their vehicle by simply touching the door handle or by putting the key into the pocket. It also allows for a variety of other adjustments, such as the position of seats, internal temperature settings, stereo presets and mirror positions.

However, this could lead to security concerns.

Security

Smart keys are computerized key fobs that communicate with the vehicle through an embedded antenna to unlock doors and start the motor. Smart key fobs, as opposed to traditional keys that emit the same frequency every time they're pressed, send encrypted signals that are compatible with the particular car to which they belong. This makes it harder for thieves with the latest technology to steal or spoof the signal and use the key to take your car.

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

Certain smart keys, like those made by BMW and Mercedes-Benz, also come with user-specific settings, which allow drivers to alter the mirrors, seat and the steering wheel's position and even the audio settings with the touch of a single button. They also come with a backup lock that keeps the vehicle from starting if the key is not in the ignition.

This technology assists drivers from locking their car, especially when fumbling in a purse or backpack to locate keys in a parking space packed with strangers or on a busy street with high rates of crime. A lot of systems will also notify drivers when keys are not fully charged, however this feature is dependent on the manufacturer.

Convenience

The smart key programing key is perfect for those on the move and need to get somewhere. By pressing the button on the trunk release or door handle you can open, lock and start your vehicle. Key fobs can also interact with your phone to track charging and location as well as other information about the vehicle, explains Popular Mechanics.

One of the biggest advantages is that you won't accidentally be locked out. The key fob connects to an antenna in the vehicle to determine whether it is within the 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 uses rolling codes to protect against hacking attempts and cloning, says BMW. A computer in the vehicle reads the code and confirms it prior to launching the engine. Most systems also have a mechanical backup that is an unnoticed key blade to be used for styling purposes.

How Stuff Works Electronics notes that modern smart key replacement cost keys can also detect the keys when it is in use and adjust the vehicle settings according to the situation. For instance, if start the car while holding the key fob in your hand the windows and sunroof will open to let air circulate through the cabin. You can also set up an automatic speed limit that will only be applied when the vehicle is powered by the chosen key. This feature could be useful when you lend your vehicle 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 smart key replacement manufacturer-specific feature called Power Saving Mode. To activate it make sure you press and hold the lock button while pressing the unlock button.

This will disable your smart key fob from sending or receiving any radio signals which will increase its battery life significantly. It is possible to reactivate the function by pressing both the unlock and lock buttons again.

Some smart car keys keys also have anti-theft functions that stop them from being copied by thieves. For instance, Mercedes-Benz smart keys use rolling codes to block unauthorised vehicle access. The car's computer is able to verify the code within milliseconds following the smart key for cars key is put in. BMW uses a similar method with its Display Key, which comes with a small LCD color touchscreen on the smart key for convenience and lets drivers lock and unlock their vehicles without ever taking it from their pockets.

Call Pop-A-Lock if you need to replace the battery on the smart key fob you have or should you be thinking of purchasing a car that has a smart-key. We can replace the battery in any smart key, and our mobile locksmiths will assist you in setting the system so that your car can recognize it.

Special Cases

Smart keys aren't 100 100% safe from theft, but they can help 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. This technology was invented by Mercedes-Benz and is currently used by a number of premium car brands.

A smart key system will continue to work even if it is not possible to remember the key in your trunk or leave it at a restaurant. Certain systems will also inform the driver when the battery is depleted. Certain brands provide key covers specifically designed for smart car key coding keys that protect the fob from damage.