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Vehicle Smart Key Technology

Smart keys in vehicles allow drivers to unlock and start the car by pressing the door handle or putting the key in the pocket. It also permits a variety of other adjustments including seat position and internal temperature settings as well as mirror position.

This could also raise security issues.

Security

Smart keys are key fobs that are computerized that communicate with vehicles via an embedded antenna. This allows them to unlock doors and activate the motor. Smart key fobs, as opposed to traditional keys, which emit the same frequency each time they're pressed, transmit encrypted signals that are compatible with the specific car smart key replacement to which they belong. This makes it much more difficult for tech-savvy criminals to intercept or spoof the signal, and use your key to steal your car.

For example, Mercedes' system -known as Keyless Go -- has an internal transponder that can identify the driver's keys. When the Smart Key comes within 1.5 meters of a vehicle, it automatically unlocks the door and tailgate and the engine will start when a button on the key is press.

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

This technology can prevent drivers from locking their cars, especially when they have to search their purse or backpack to find keys in a parking space packed with strangers or on an area with high rates of crime. Many systems also alert drivers when keys are running low on battery, but this feature is dependent on the manufacturer.

Convenience

The smart roadster key programming key is ideal for those who are trying to get to their destination. By pressing the button on your trunk release lever or door handle, you can open, lock and get into your vehicle. The key fob will also connect to your phone to keep track of charging and location as well as other information about the vehicle, says Popular Mechanics.

A big benefit is that you don't lose your keys. The key fob communicates to an antenna in the vehicle to determine if it's within the range. If not, the engine will not start. This can deter thieves who may steal your vehicle in order to sell the parts.

The smart key also employs rolling codes to prevent hacking attempts as well as cloning, according BMW. A computer in the vehicle is able to recognize the code and verifies it prior to starting the engine. The majority of systems have a mechanical back-up in the form an invisible key blade.

Modern smart car key programming (he said) keys can also tell which keys are in use and adjust the settings of the vehicle in line with the use of the key, says How Stuff Works Electronics. For example, if you switch on the car while holding the key fob in your hands the windows and the sunroof are opened to let the air in the cabin breathe. You can also set an upper limit on speed that will only be applicable when the vehicle is started using the selected key, a feature that 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 down and then press the unlock button.

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

Some smart keys also have anti-theft features to prevent them from being copied by thieves. For instance, Mercedes-Benz smart keys use rolling codes to block unauthorized access to the vehicle. When the smart key is put in the ignition, a computer within the car verifies the code in milliseconds prior Smart Car Key Programming it starts the engine. BMW uses a similar method with its Display Key, which comes with an LCD touchscreen on the smart key for added convenience and lets drivers lock or unlock their vehicles without ever taking the key from their pockets.

Contact Pop-A-Lock if your need to replace the battery in your smart key fob if you are thinking of purchasing a car with smart-key. Our mobile locksmiths can change the battery of any smart key and help you set it up so that your car recognizes it.

Special Cases

While smart keys are not secure against theft, they can help to stop thieves. smart key for cars key fobs are designed to keep hackers from gaining access to the system. When they are inserted into the ignition of the vehicle the computer checks the code in milliseconds. Mercedes-Benz invented this technology, which is now used by luxury car brands.

Another useful feature is that the majority of smart key systems will continue to work even if the user has forgotten the key in the trunk or left it in the restaurant, or lost it during the trail. Certain systems will also notify the driver when the battery is low. Certain brands provide key covers specifically made for smart keys that keep the fob protected from harm.