Vehicle Smart Key Technology

The technology of smart keys in vehicles enables drivers to unlock and start their vehicle by simply pressing the door handle, or putting the keys in the pocket. It also allows a variety of other adjustments, like the position of seats, internal temperature settings, mirror position and stereo presets.

This can also cause 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. Unlike conventional keys, which emit the same frequency signal every time they are press, smart key fobs transmit encrypted signals that are specific to the specific car they belong to. This makes it difficult for tech-savvy criminals to detect or spoof the signal, and then use your key to steal your car.

For example, Mercedes' system -known as Keyless Go -- has an internal transponder, which identifies the driver's key. 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 a button on its key.

Some smart keys, such as those from BMW additionally have user-specific settings that allow the driver to alter the seat, mirrors, steering wheel position, and audio preferences with the push of a button. They also have a backup lock that prevents the vehicle starting without the key.

This technology prevents drivers from locking their cars, especially when searching through a purse or backpack for keys in a parking lot packed with strangers or on an area with high rates of crime. Some systems also notify drivers when keys are in danger of being depleted, though this feature varies by manufacturer.

Convenience

If you're in a hurry to get to a place, the smart key makes entering your vehicle as simple as it can be. By pressing the button on the trunk release or door handle, you can lock, unlock and open your vehicle. Popular Mechanics explains that the key fob can also be used to monitor charging, location, and other vehicle information.

You don't want to accidentally lock your keys inside the car. The key fob connects to an antenna inside the vehicle to determine whether it's within the range. If it's not, the engine won't start. This will deter thieves who might steal your car to sell the parts.

BMW reports that the smart key makes use of rolling codes to ward off hacking and cloning. The computer inside the vehicle is able to recognize and verify the code prior to launching the motor. Most systems also have a mechanical backup in the form of an unnoticed key blade for styling purposes.

Modern smart key programing keys also recognize the type of key being used and adjust the settings of the vehicle in line with the use of the key, says How Stuff Works Electronics. If you switch on the vehicle while holding the key in your hands for instance the windows as well as the sunroof can be opened to allow fresh air to enter the interior. You can also set a speed limit that will only be in effect when the car is started using the specified key, which could be helpful when lending your car to a new 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, hold the lock button, then press the unlock button.

This will prevent your smart key fob from being able to send or receive any radio waves. This will greatly extend the battery's life. You can always restart the function by pressing the lock and unlock buttons again.

Some smart keys have anti-theft features that stop them from being stolen by thieves. For instance, Mercedes-Benz smart keys use rolling codes to block unauthorised vehicle access. When a smart key is inserted into ignition, a computer in the car confirms the code in milliseconds prior it starts the engine. BMW uses a Display Key that has a tiny LCD color screen. This lets drivers lock their vehicles, unlock them, and even start them without removing the smart car key replacement cost uk key from their pocket.

Contact Pop-A-Lock if your need to replace the battery on your smart key fob, or considering purchasing a car that has a smart-key. We can replace the battery on any smart key, and our mobile locksmiths are able to help you set the system so that your car can recognize it.

Special Cases

Smart keys are not 100 100% secure against theft, but they do assist in preventing thieves. smart car key programming key fobs are designed to deter hackers from gaining access to the system. When they are placed in the ignition of the car the computer validates the code in milliseconds. This technology was invented by Mercedes-Benz and is currently used by a number of high-end car brands.

A smart key system will function even if you lose the key in your trunk or leave it in the restaurant. Some systems will alert the driver when the battery is not fully charged. Certain brands provide key covers specifically designed for smart keys to keep the fob protected from harm.