Vehicle Smart Key Technology

Smart keys for vehicles allow the driver to unlock and start the car simply by touching the door handle or placing the key in the pocket. It also allows a variety of other adjustments like the position of seats and temperature settings inside the car, mirror positioning and stereo presets.

This can also lead to security concerns.

Security

Smart keys are key fobs that are computerized which communicate with the vehicle through an embedded antenna. It can unlock doors and activate the motor. Smart key fobs, unlike conventional keys that emit the same frequency each time they're used, transmit encrypted signals that are compatible with the specific car to which they belong. This makes it much more difficult for thieves with advanced technology to intercept or fake the signal, and use your key to steal your vehicle.

For example, Mercedes' system -known as Keyless Go -- has an internal transponder that can identify the driver's keys. When the smart forfour key replacement Key comes within 1.5 meters of a vehicle it instantly unlocks the door and tailgate, and the engine starts when a button on the key is pressed.

Furthermore certain smart keyslike those made by BMW -- have individual user settings that allow the driver to adjust the seat, mirrors and the position of the steering wheel as well as audio preferences at the touch of the button. They also have the backup lock, which stops the vehicle from starting if it is not connected to the key.

This technology prevents drivers from accidentally locking their vehicles, especially when searching in the bag or purse for keys in an open parking lot with strangers, or on a street where crime is high. Many systems also notify drivers when their keys are in danger of being depleted, though this feature is different for each manufacturer.

Convenience

If you're in a hurry to get somewhere, the smart key makes entering your vehicle as simple as it can be. You can unlock, lock and start your car simply by pressing a button on the door handle or the trunk release. The key fob can also connect to your phone to track charging, location and other data regarding the vehicle, as explained by Popular Mechanics.

You shouldn't lock your keys inside the car. The key fob connects to an antenna in the vehicle to determine whether it's within the range. If it's not, the engine will not start. This can deter thieves who could take your vehicle and sell the parts.

BMW reports that the smart key employs rolling codes as well to stop cloning and hacking. A computer inside the vehicle is able to recognize the code and verifies it before starting the engine. Most systems have a physical back-up in the form an unnoticed key blade.

Modern smart key for cars keys also recognize which keys are in use and adjust the car settings in line with the use of the key, says How Stuff Works Electronics. For instance, if you turn on the car while holding the key fob in your hand the windows and sunroof can be opened to let the cabin air dry. You can also set the speed limit to only be applied when the vehicle is started using the chosen key, a feature that could be useful if you loan 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 smart key replacement; shotsquiz.com, manufacturer-specific feature called Power Saving Mode. To do this, hold the lock button down and then press the unlock button.

This will disable your smart key fob from transmitting or receiving any radio waves that could extend its battery's life by a significant amount. You can always activate the function by pressing the unlock and lock button again.

Certain smart keys have anti-theft functions that prevent them being copied by thieves. Mercedes-Benz smart keys utilize rolling codes to prevent access by anyone who is not authorized to use it. The car's computer is able to verify the code within milliseconds following the smart key is inserted. BMW uses a similar method with its Display Key, which includes a small LCD color touchscreen on the smart key for added convenience and allows drivers to lock, unlock, and start their vehicles without ever taking it from their pockets.

If you're thinking of buying the latest car equipped with a smart key, or require your smart key fob's battery replaced, call us at Pop-Alock for a quick and simple service. We can replace the battery on any smart key and our mobile locksmiths are able to help you set it up to make sure your vehicle recognizes it.

Special Cases

Although smart keys aren't theft-proof, they do help to deter thieves. Smart keys use rolling security codes to protect against hacking, and when placed in the ignition, the car's computer verifies the code within milliseconds. This technology was invented by Mercedes-Benz and is now utilized by many premium car brands.

A smart car key key system will function even if you lose the key in your trunk or leave it at an establishment. Some systems will alert the driver when the battery is not fully charged. Certain brands have key covers that are specifically designed for smart keys, to shield the fob from damage.