Vehicle Smart Key Technology

Smart keys in vehicles allow a driver to unlock and start the car by pressing the door handle or putting the key in the pocket. It also enables a range of other adjustments, including seat positions and temperature settings inside the car, mirror position and stereo presets.

However, this could result in security issues.

Security

Smart keys are highly sophisticated key fobs that are computerized and communicate with a vehicle via one of the antennas in the car to unlock the doors and to start the engine. Smart key fobs, unlike traditional keys that emit the same frequency every time they're pressed, send encrypted signals that are only compatible with the specific car to which they belong to. This makes it much more 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 -known as Keyless Go -- has an internal transponder which can identify the driver's key. When the Smart Key comes within 1.5 meters of a car it will automatically unlock the door and tailgate and starts the engine when the key's button is hit.

Furthermore some smart keys- like those from BMW have their own user settings that allow the driver to adjust the mirrors, seat and steering wheel position and audio preferences at the touch of a button. They also come with an emergency lock that stops the car from starting if the key is not in the ignition.

This technology assists drivers from locking their cars, especially when they have to search their purse or backpack to find keys in a parking space filled with strangers or on a busy street with high rates of crime. A lot of systems will also notify drivers when the key is in danger of being depleted, though this feature varies by manufacturer.

Convenience

The smart key is perfect for those in a rush to get somewhere. By pressing the button on the trunk release or door handle, you can unlock, lock and get into your vehicle. Popular Mechanics explains that the key fob can also be used for tracking charging locations, charging, and other information about your vehicle.

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

The smart key also makes use of rolling codes to ward off hacking attempts and cloning, says BMW. A computer inside the vehicle recognizes the code and checks it before starting the engine. The majority of systems also have a mechanical backup that is a key blade that's hidden to be used for styling purposes.

Modern smart fortwo key programming keys also know which key is in use and adjust the settings of the vehicle as needed, according to how to unlock a smart car without a key Stuff Works Electronics. For example, if you start the car while holding the key fob in your hand the windows and the sunroof are opened to let the cabin air dry. You can also set the speed limit to only be applied when the vehicle is powered by the specified key. This feature can be useful when you lend your car to someone who has no prior 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 activate this feature you need to press and hold the lock button while pressing the unlock button.

This will make it impossible for your smart key fob's smart device from being able to send or receive any radio waves. This will greatly extend its battery life. You can always restart the function by pressing the unlock and lock button again.

Some smart keys include anti-theft functions that prevent them being stolen by thieves. Mercedes-Benz smart keys utilize rolling codes to block unauthorized access. When the smart key is put in the ignition, a computer within the car validates the code in milliseconds prior to even starting the engine. BMW uses a similar method with its Display Key, which has an LCD touchscreen on the smart key to make it easier and enables drivers to lock or unlock their cars without ever removing it from their pockets.

If you're thinking about buying a new car with a smart car keys key, or require the battery in your smart car key repair key fob replaced, call us at Pop-Alock to get a quick and easy service. Our mobile locksmiths will change the battery on any smart key and also help to set it so that your car can recognize it.

Special Cases

While smart keys are not safe from theft, they do assist to stop thieves. Smart keys utilize rolling security codes to prevent the hacking of keys, and when they are placed in the ignition, the vehicle's computer checks the code in milliseconds. Mercedes-Benz developed this technology, which is currently used by luxury car brands.

A smart key system will work even if you don't remember the key in your trunk or leave it at a restaurant. Some systems will also alert the driver when the battery is low. Certain brands provide key covers that are specifically designed for smart keys, to shield the fob from damage.