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What is a Smart Key Car Key?

Sometimes referred to as keys that are in proximity also known as key fobs, keys or remote keys, smart key for car keys work to unlock doors and start engines without the driver needing to insert an actual key. They communicate with each other by using radiofrequency signals.

In addition, it helps keep cars secure by blocking hotwiring attempts. Smart keys also transmit unique encrypted signals to block them from being used by other vehicles owned by drivers.

Convenience

Rather than having to insert the key into an ignition slot instead, you can lock and unlock your car simply by touching the handle on your door or trunk. A lot of modern cars also have an option that allows you to start your engine from a distance. This is particularly useful when you are bringing in groceries as well as transporting passengers or equipment.

This technology is designed to help protect against theft of vehicles. Instead of transmitting a single frequency signal as a standard key fob, a smart key sends out various encrypted signals to the car's embedded antennas as you approach it. How Stuff Works Electronics explains that this stops other vehicles from receiving and responding to the same signal.

Furthermore, some manufacturers incorporate a computer chip into the vehicle to identify the unique fingerprint of each key, which helps ensure that only authorized drivers use it. This is useful in the event that you lend your vehicle to family members or friends.

Some smart keys can also store user settings, ensuring that seat, steering wheel mirror, seat and stereo presets are automatically set when the key is within the range of the car. Some smart keys may also be set up to prevent the vehicle from going over the speed limit once the key is used to start it. This can help keep novice drivers safe, and is particularly beneficial for families with young children in the back of the vehicle.

Security

Traditionally, car keys have been made of metal and used to unlock the ignition. Smart key technology eliminates this need. Smart keys are equipped with a chip that sends signals from the antenna to your car. The car detects this signal when the driver presses the button on the trunk release or door handle. This means that it's not possible to lock your keys into your car.

The smart key's signal to your vehicle is encrypted to ensure that only you can access it. In addition, most models will disable the engine in the event that the vehicle is not started in the last few minutes. This feature is especially useful if you're in an unsafe area or you have to leave the vehicle for reasons of any kind, like at a gas station.

There are many systems that also have a backup system for opening and re-starting the car if the battery of the smart key runs out while you are on a ride. The backup method typically involves putting the key in a slot or holding it near a specific part of the cockpit, which transfers energy to an electric motor. Certain manufacturers offer a mechanical key blade that can be utilized in a situation of emergency to open the trunk or to start the vehicle.

Battery Life

The majority of newer cars come with keyless entry as well as push-button starting systems that are controlled by a smart key fob that utilizes proximity technology to connect with the car. These systems are powered by a small transmitter which is powered by a lithium coin-sized battery. It will eventually have to be replaced just like any other battery.

The majority of smart key fob batteries last several years however it doesn't mean they won't be unable to function and shut down suddenly. If the fob is dead you won't be able to unlock or start your car even when you place it close to the front door.

It's not uncommon for the transmitter inside a smart key to drain the battery. It sends a signal to the car each time you press the button, but most of the time the smart key repair key isn't doing anything. One single lock/unlock button takes only a fraction of the fob's battery and, therefore, there's several years worth of signals' worth of battery life for the average smart key battery.

The fob also tends to drain the battery when you keep it close to other devices that emit electromagnetic fields, such as phones and computers. These devices create their own magnetic fields, which could interfere with the fob's transmitter, causing it to run slower. In some instances, the fob may even stop working altogether in the event that the fob is too close to these devices, as per RepairPal.

Maintenance

Smart keys differ from traditional keys because they use technology to control the locks of your car as well as perform other functions. It works by sending an indication from the fob to antennas in and outside the vehicle. These antennas sense the signal and communicate with the computer in your car. The car is then able to interpret the signal and allows you to open or begin it without using a physical key.

The fob is now the hub of many electronic features that are now available in new automobiles. The most obvious ones are locking and unlocking, remote starting, and chirping sounds to help you find your vehicle in a parking lot. Certain fobs let you store different settings for different drivers, and can even remotely open windows as well as the sunroof.

The fob is an elaborate electronic device that has an integrated board. It can be damaged if subjected to extreme heat or cold. The transmitter can be damaged if hit or dropped. The battery's contacts can become bent.

These problems can be hard to diagnose and resolve. You can try using your phone to bypass the problem and see if it works however it's best to keep a spare key in your pocket, just in case. You can purchase a generic auto smart key replacement key replacement that costs up to 70 percent less than OEM keys and comes with a three-year warranty.