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Vehicle smart key repair Key Technology

Smart keys for vehicles allow drivers 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 like seating positions as well as internal temperature settings mirror position and stereo presets.

This could also create security worries.

Security

Smart keys are computerized key fobs that communicate with vehicles through an embedded antenna. It can unlock doors and begin the motor. Unlike conventional keys, which emit the identical frequency signal each time they are pressed, smart key fobs transmit encrypted signals that are specific to the specific vehicle they belong to. This makes it more difficult for tech-savvy criminals to intercept or spoof the signal, and use your key to steal your vehicle.

For instance, Mercedes' system -known as Keyless Go -- has an internal transponder, which identifies the driver's keys. When the smart car key programming Key comes within 1.5 meters of a vehicle it automatically unlocks the door and tailgate and starts the engine when a button on the key is press.

Some smart keys, like the ones made by BMW are also equipped with user-specific settings. These allow the driver to adjust the mirrors, seat and steering wheel's position and even the audio settings with the press of a single button. They also have the backup lock, which will stop the car from starting if the key is not in the ignition.

This technology protects drivers from not locking their cars properly and causing damage to their vehicle, particularly when searching bags or purses for keys on the parking lot of strangers or a busy street where crime is high. A lot of systems will alert drivers when the battery in their keys is not fully charged, though this feature varies from manufacturer the manufacturer.

Convenience

The smart key is perfect for those in a rush to get to their destination. By pressing the button on the trunk release or door handle you can open, lock and get into your vehicle. Popular Mechanics explains that the key fob can be used to track charging or location as well as other vehicle information.

A major benefit is that you aren't able to accidentally lock yourself out. The key fob communicates to an antenna inside the vehicle to determine if it's within range. If it's not, the engine will not start. This will deter thieves from the vehicle and stealing parts of it.

The smart key also uses rolling codes to protect against hacking attempts and cloning, reports BMW. A computer inside the vehicle reads the code and checks it prior to starting the engine. Most systems have a mechanical back-up in the form an invisible key blade.

How Stuff Works Electronics notes that modern smart keys also detect when the key is when it is in use and adjust the vehicle settings according to the situation. For instance, if turn on the car smart key holding the key fob in your palm the windows and sunroof will open to let air circulate through the cabin. You can also set the speed limit to only apply when the vehicle is started using the selected key, which could be helpful when lending your vehicle to a novice 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 this feature, 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 increase the life of its battery. It is possible to reactivate the function by pressing both the lock and unlock buttons again.

Certain smart keys also come with anti-theft features to prevent them from being copied by thieves. Mercedes-Benz smart keys employ rolling codes to stop unauthorised access. The computer in the car will check the code every millisecond after the smart key is introduced. BMW makes use of a Display Key that has a tiny LCD color screen. This lets drivers lock their cars, unlock their doors, and start them without taking the smart key from their pockets.

If you're considering buying an automobile with a smart key, or you need your smart key fob's battery changed, contact us at Pop-A Lock for a fast and easy service. We can replace the battery in any smart key and our mobile locksmiths are able to help you set the system so that your vehicle can recognize it.

Special Cases

While smart keys are not secure against theft, they can help to hinder thieves. Smart key fobs use rolling security codes to protect against the hacking of keys, and when they are placed in the ignition, the vehicle's computer checks the code in milliseconds. This technology was developed by Mercedes-Benz and is now employed by a number of luxury car brands.

A smart key system will work even if it is not possible to remember the key in the trunk or leave it in a restaurant. Some systems will alert the driver when the battery is depleted. Some brands offer key covers specifically designed for smart keys to protect the fob from damage.