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What is a Smart Key Car Key?

Also known as keys that are in proximity also known as key fobs, keys or remote keys, smart keys work to unlock doors and start engines without the driver having to insert the physical key. They communicate by radiofrequency signals.

This helps to keep cars safe by blocking hotwiring. Smart keys transmit unique encrypted signals that keep access to other vehicles.

Convenience

Rather than having to insert keys into the ignition slot instead, you can lock and unlock your vehicle simply by touching the door handle or trunk. Many modern cars also come with a feature that lets you to start your car remotely. This is especially useful if you are bringing groceries in or transporting passengers or equipment.

This technology is designed to stop theft of vehicles. Instead of transmitting a single frequency signal like a regular key fob does, a smart key sends out a series of encrypted signals to a car's antennas embedded in it when you are near it. What does this mean? Stuff Works Electronics explains that this prevents other cars receiving and responding the same signal.

Certain manufacturers also incorporate computers in their vehicles that detects the unique fingerprint of each key. This makes sure that only authorized users are using it. This is useful when you lend your car to family and friends.

Some smart keys can also save user settings, meaning that the steering wheel, seat, mirror and stereo presets can be automatically set when the key is within reach of the car. To make things easier, some smart keys can be set to stop the car from exceeding a specific speed limit when it is started with that particular key. This is a great method to protect new drivers and is an excellent idea if you have children in the back.

Security

Traditionally keys were cut from metal to unlock the ignition. With the advent of smart keys however, this is no longer a requirement. Smart keys come with a specific chip that sends signals to your car's antenna. The signal is then acknowledged by the vehicle when the driver presses a button on the handle on the door or trunk release. It is now impossible to lock your keys into your vehicle.

The signal sent by the smart key to your vehicle is encrypted so that only you have access to it. A majority of models also shut down the engine when the car hasn't been started for just a few minutes. This feature is particularly useful in case you're in a hazardous zone or need to leave the vehicle for any reason, for instance, at a gas pump.

A lot of systems also have an alternative system for opening and re-starting the car if the battery of the smart key is drained out while riding. The backup method involves putting the key in a slot or holding it close to an location in the cockpit, which transfers energy to an electric motor. Some manufacturers also have an key blade that is an emergency mechanical lock in the key that could be used to open the trunk and begin the car if required.

Battery Life

The majority of modern cars have keyless entry systems as well as push-button starters. They are controlled by a smart fob which communicates with the car via proximity technology. These systems are powered by a tiny transmitter which is powered by a coin-sized lithium battery. Like any other battery that eventually requires replacement, this one too will need replacement.

Even though smart key fobs are made to last for many years but they may suddenly lose power. If the fob battery is dead, you won't be able unlock or start your car even in the event that you put it near the front door.

It is not unusual for the transmitter of a smart keys for cars key to drain the battery. It transmits a signal to the car each time you press a button, but most times, the smart key is doing nothing. The battery of the smart car key replacement key is sufficient to last for several years of unlock and lock signals.

The fob will also drain the battery if it is located near other devices which emit electromagnetic fields like computers and phones. These devices emit their own magnetic fields, which can interfere and slow down the fob's transmitter. RepairPal states that the fob may cease to function if placed too close to the gadgets.

Maintenance

Smart keys differ from traditional metal keys because they use technology to control the locks of your car in addition to performing other functions. It works by transmitting a signal through antennas placed inside and outside your vehicle that detect the fob's presence and communicate with the car's computer. The car is then able to interpret the signal and allows you to open and start it without using a physical key.

The fob is now the hub of many electronic features in new automobiles. The most obvious are locking and unlocking, remote starting and chirping sounds to aid in finding your vehicle in a parking lot. Certain fobs let you store various settings for various drivers, and remotely open windows and even the sunroof.

The fob is an elaborate electronic device that has an integrated board that can be damaged if it is used too hard or exposed to extreme heat or cold. The transmitter can break when it is knocked or dropped, and the battery contacts may also be bent.

These issues can be difficult to pinpoint and solve. You can use your smartphone to overcome this issue to see if it works. However it is important to keep an extra key in your pocket in case. You can purchase an ordinary smart key fob (hop over to these guys) key replacement for up to 70% less than OEM keys and comes with a 3-year warranty.