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What is a Smart Key Car Key?

Variously 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 having to insert the key. They communicate with each other using radiofrequency signals.

This helps keep vehicles safe by stopping hotwiring. Smart keys also broadcast unique encrypted signals that prevent them from being used by other drivers' vehicles.

Convenience

Instead of having to insert keys into the ignition slot it is possible to lock and unlock your car by merely touching the handle on your door or trunk. A lot of modern cars also have the option to remotely start your engine. This is especially useful for those who are bringing groceries into the vehicle or transporting passengers and equipment.

This technology is designed to help stop theft of vehicles. Instead of sending a single frequency signal, similar to a normal key fob smart keys send out a series of encrypted signals to the car's embedded antennas when you approach it. This prevents other cars from receiving and responding to the same signal, explain how Stuff Works Electronics.

Additionally, some manufacturers employ a computer chip inside the vehicle that can recognize the unique fingerprints of each key, which makes sure that only authorized drivers use it. This is beneficial if you loan your car to family members and friends.

Certain smart keys can also store user preferences, so that the steering wheel, seat, mirror and stereo presets are automatically set when the key is within range of the car. For added convenience, some smart car key coding keys can be programmed to prevent the vehicle from exceeding a specific speed limit when started with that particular key. This can help keep novice drivers safe and can be beneficial for families with young children in the back of the vehicle.

Security

Traditionally keys for cars have been cut from metal and used to unlock the ignition. With the advent of smart key technology this is no longer required. Smart keys come with an electronic chip that transmits a signal to your car's antenna. The vehicle recognizes 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 use it. In addition, most models will stop the engine in the event that the vehicle hasn't been started in the last few minutes. This feature is especially helpful if you're in an unsafe zone or need to leave the vehicle for any reason, such as at a petrol station.

There are many systems that also have backup systems for opening and starting the car when the battery of the smart key goes out while on a ride. The backup method typically involves putting the key in the slot or placing it in a particular area of the cockpit to transfer energy to an electric motor. Certain manufacturers offer a mechanical key blade that can be used in an emergency situation to open the trunk or to start the vehicle.

Battery Life

Many newer cars have keyless entry and push-button starting systems operated by a smart car key programming key fob that uses proximity technology to communicate with the car. These systems are powered by a tiny transmitter which is powered by a lithium coin-sized battery. It will eventually have to be replaced as with any other battery.

Although smart key fobs are designed to last for many years, they can suddenly lose power. 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 of the smart key to drain the battery. The smart key sends signals each when you press the button. However, the majority of the time, it does nothing. A single signal to lock or unlock takes only a tiny amount of the battery power in the fob which means that there's several years ' worth of signals' worth of battery life in an average smart key battery.

The fob also drains the battery if it is located near other devices which emit electromagnetic field such as phones and computers. These devices emit magnetic fields of their own, which can interfere and slow down the fob's transmitter. In some instances, the fob may even cease to function completely when it is placed too close to these devices, as per RepairPal.

Maintenance

As opposed to the traditional car key, a smart key uses technology to control the locks on your vehicle and perform some other functions. It functions by transmitting an indication from the fob to antennas inside and outside the vehicle. These antennas receive the signal and then communicate with the computer in your car. The car responds to the signal and allows you to open or start it without having to use the physical key.

The fob is now the hub of numerous electronic features on new vehicles. The most obvious functions include locking and unlocking your vehicle, remote starting and chirping noises to help you locate your car in a parking spot. Some fobs allow you to store different settings for various drivers, and remotely open windows and the sunroof.

The fob is an elaborate electronic device that includes an integrated circuit board that can be damaged if subjected to extreme heat or cold. The transmitter can be damaged if damaged by being dropped or smashed. The battery's contacts can be bent.

These problems can be hard to pinpoint and repair. You could try using your smartphone to get around the issue and see if that works however, it's always a good idea to keep a spare key in your pocket just in case. You can buy a generic smart keys cars key replacement that's up to 70% less than OEM keys and comes with a 3-year warranty.