7 Things You've Always Don't Know About Smart Car Key Programming

Vehicle Smart Key Technology

The smart fortwo key programming key technology in vehicles allows a driver to unlock and start the car simply by grabbing the door handle or placing the key in the pocket. It also allows a variety of other adjustments, including the position of seats, internal temperature settings, stereo presets, and mirror positioning.

This can also lead to security worries.

Security

Smart keys are computerized key fobs that communicate with vehicles through an embedded antenna. It can unlock doors and start the motor. As opposed to traditional keys, which emit the identical frequency signal each time they are activated, smart key repair keys transmit encrypted signals that are only compatible with the specific 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 vehicle.

For instance, Mercedes' system -- called Keyless Go -- 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 will start when a button on the key is hit.

Certain smart keys, like the ones from BMW and Mercedes-Benz, also come with user-specific settings that permit drivers to alter the seat, mirrors and the steering wheel's position and audio preferences at the click of a button. They also have an emergency lock that stops the vehicle from starting if it is not connected to the key.

This technology helps drivers avoid being unable to lock their vehicle, especially when searching in a purse or a backpack for keys on the parking lot of strangers or on a busy street where crime is high. Some systems will also notify motorists when the battery for their key is depleted, though this feature varies by manufacturer.

Convenience

The smart key is ideal for those who are on the move and need to get to their destination. By pressing the button on your trunk release lever or door handle, you can open, lock and begin your vehicle. Popular Mechanics explains that the key fob can also be used for tracking charging, location, and other vehicle information.

The main benefit is that you don't lose your keys. The key fob is connected to an antenna inside the vehicle to determine if it's within the range. If it's not in range, the engine will not start. This will deter thieves who may take your vehicle and sell the parts.

The smart key also employs rolling codes to prevent hacking attempts and cloning, according to BMW. The vehicle's computer recognizes and verifies the code prior to starting the motor. Most systems have a mechanical backup system that is an invisible key blade.

Modern smart keys also know which keys are in use and adjust the vehicle settings accordingly, notes How Stuff Works Electronics. If you turn on the vehicle while holding the key in your palm for instance the windows as well as the sunroof can be opened to allow fresh air to enter the interior. You can also set the speed limit to only be applicable when the vehicle is started using the selected key, a feature that can be useful when loaning 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 do this, press and hold the lock button while pressing the unlock button.

This will disable your Smart forfour key programming key fob's smart chip from sending or receiving any radio signals that could extend its battery's life considerably. You can always activate this feature by pressing the unlock and lock buttons once more.

Some smart keys also have anti-theft functions that stop them from being copied by thieves. Mercedes-Benz smart keys utilize rolling codes to prevent unauthorized access. The computer in the car is able to verify the code within milliseconds following the smart key is placed. BMW has a similar system with its Display Key, which comes with a small LCD color touchscreen on the smart key for convenience, and lets drivers lock or unlock their vehicles without ever taking the key from their pockets.

If you're considering purchasing an automobile with a smart key, or if you require the battery in your smart key fob replaced, call Pop-A-Lock for a fast and easy service. Our mobile locksmiths will replace the battery of any smart key and help to set it up so that your car can recognize it.

Special Cases

Smart keys aren't% theft-proof but they can help deter thieves. smart forfour key programming keys use rolling security codes to protect against the hacking of keys, and when they are placed in the ignition, the vehicle's computer validates the code within milliseconds. Mercedes-Benz developed this technology, which is currently utilized by luxury car brands.

Another great feature is that most smart key systems will continue to operate even if the user has forgotten the key in the trunk, left it at a restaurant or lost it during the trail. Certain systems will notify the driver when the battery is not fully charged. Certain brands provide key covers designed specifically for smart keys that protect the fob from damage.