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What is a Smart Key Car Key?

Smart keys are also referred to as proximity keys or key fobs. They function to unlock doors and to start engines without a driver having to insert a physical key. They communicate by radiofrequency signals.

Apart from that, it helps keep cars secure by blocking attempts at hotwiring. Smart keys also broadcast unique encrypted signals to prevent them from being used by other drivers' vehicles.

Convenience

Instead of putting a key into an ignition slot to lock and unlock your car by simply pressing the door handle or trunk. A lot of modern cars come with a feature that allows you to start your car wirelessly. This is particularly useful if you're bringing groceries into the vehicle as well as transporting passengers or equipment.

This technology is intended to deter theft of vehicles. Instead of transmitting a single frequency signal, Smart Key Car like a regular key fob, a smart key sends out a series of encrypted signals to the car's embedded antennas as you walk towards it. This prevents other cars from being able to receive and respond to the same signal. This explains How Stuff Works Electronics.

Some manufacturers also use a computer chip inside the vehicle that recognizes the unique fingerprints of each key. This can help ensure that only authorized users are using it. This can be beneficial when you loan your car to family and friends.

Certain smart keys also save user preferences so that the mirrors, seats and steering wheel adjustments, as and stereo presets can be set automatically when the key is within reach of the vehicle. Some smart key car keys can also be programmed to stop the vehicle from exceeding the speed limit once it is started using that key. This is a great way to keep new drivers safe and also recommended if you have children in the back of the vehicle.

Security

Traditionally, car keys have been cut from metal and used to unlock the ignition. Smart key technology eliminates this requirement. Smart keys come with a chip which sends a signal from the antenna to your car. The car can detect this signal when the driver presses the button on the trunk release or door handle. It is now impossible to lock your keys into your vehicle.

The signal sent by the smart key to your vehicle is encrypted to ensure that only you can use it. Most models also disable the engine when the vehicle isn't started for a few minutes. This is especially useful when you're in a dangerous area or have to leave the vehicle for reasons other than at a petrol station.

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 system usually involves putting the key in a slot or holding it near a specific area of the cockpit to transfer energy to an electric motor. Certain manufacturers have a mechanical key blade that can be used in an emergency situation to open the trunk or start the car.

Battery Life

The majority of modern cars have keyless entry systems as well as push-button starters. They are controlled by a smart car keys fob that communicates with your car using proximity technology. These systems rely on a small transmitter powered by a coin-sized lithium battery. Like any other battery that will eventually require replacement.

Although smart key car key fobs are made to last for many years however, they can suddenly lose power. A dead key fob means you are unable to unlock or start the car, even if you keep it near the front door and the key fob's light blinks.

It's not unusual to find the transmitter in a smart key to drain the battery. It sends a signal to your car each time you touch one button, however most times, the smart key isn't doing anything. A single lock/unlock signal uses only a tiny amount of the fob's battery and that's several years worth of signals' worth of battery life for the average smart key battery.

The fob also drains the battery when it is kept near other devices that emit electromagnetic fields like phones and computers. These devices emit magnetic fields of their own which can interfere with and slow down the fob's transmitter. RepairPal states that the fob could be inoperable if placed too close to the gadgets.

Maintenance

Smart keys are different from traditional keys made of metal by using technology to control the locks of your car and perform other functions. It operates by sending a signal to antennas situated inside and outside of your vehicle that detect the fob's signal and connect with the car's computer. The car interprets the signal which allows you to turn it on or open it without the physical key.

The fob is now a central point for many electronic features that are now available in new automobiles. The most obvious uses include locking and unlocking your car, remote start and chirping noises to assist you in finding your car in a parking space. Certain fobs let you save various settings for different drivers, and even remotely open windows as well as the sunroof.

The transmitter is a complicated device that includes an integrated circuit board, and it could be damaged through repeated use or exposure to cold or heat. The transmitter could be damaged if it is damaged by a fall or a bang, and the battery contacts may also be bent.

These problems can be difficult to determine and fix. Try using your phone to bypass the issue and see if it works, but it's a good idea keep a backup key inside your pocket in a case. You can buy an alternative to the majority of OEM smart keys, which costs up to 70 percent less and comes with a 3-year, better-than-OEM warranty.