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What is a Smart Key Car Key?

Variously known as keys for proximity, key fobs or remote keys, smart car keys keys are used to unlock doors and start engines without the driver having to insert the key. They communicate with one another through radiofrequency signals.

Among other things, this helps to protect cars by blocking attempts to hotwire. Smart keys emit unique encrypted signals that stop them from being accessed by other vehicles.

Convenience

You can lock and unlock your vehicle without the need to insert the key into the ignition slot. Simply touch the handle on the door or trunk. Modern vehicles often have an option that allows you to start your engine from a distance. This is particularly useful if you are bringing groceries in as well as transporting passengers or equipment.

This technology is intended to deter theft of vehicles. Smart keys send out encrypted signals instead of a single frequency like a normal keyfob. This blocks other cars from being able to receive and respond to the same signal. This explains How Stuff Works Electronics.

Additionally, some manufacturers incorporate a computer chip into the vehicle to identify the unique fingerprint of each key, which makes sure that only authorized drivers are using it. This is useful if you lend your car to family members and friends.

Certain smart keys also save user settings so that seat, mirrors, and steering wheel adjustments as along with stereo presets can be set automatically when the key is within the range of the vehicle. For additional convenience, certain smart keys can be programmed to stop the vehicle from exceeding a specific speed limit when initiated with that specific key. This can help keep inexperienced drivers safe and can be useful if you have young children in the back of the vehicle.

Security

Traditionally keys were made from metal to open the ignition. With the advent of smart key technology, however, this is no longer the case. Smart keys come with a specific chip that sends a signal to the car's antenna. The vehicle recognizes this signal when the driver presses on the trunk release or door handle. It is now impossible to lock the keys inside your vehicle.

The signal sent by the smart key to your vehicle is secured so that only you have access to it. Most models also disable the engine when the car hasn't been running for a few minutes. This feature is especially helpful when you're in a risky zone or need to leave the vehicle for reasons of any kind, like 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 goes out while riding. The backup method involves putting the key into a slot, or holding it near a particular area of the cockpit where energy is transferred to an electric motor. Some manufacturers have a motorized key blade that can be used in an emergency to open the trunk or start the vehicle.

Battery Life

The majority of modern cars have keyless entry systems as well as push-button starters. These are controlled by a smart fob which communicates with your car using proximity technology. These systems use a small transmitter powered by a coin-sized lithium battery. It will eventually need to be replaced like any other battery.

The majority of smart key fob batteries last for a while however this doesn't mean that they won't go out of power and stop working abruptly. If the fob battery is dead, you won't be able unlock or start your car if you hold it up near the front door.

It is not uncommon to see the transmitter of a smart car key recoding key drain the battery. The smart key will send a signal every when you press a button. However, most of the times, it doesn't do anything. The battery of a smart key can be used to last for several years of unlock and lock signals.

The fob also tends to drain the battery If you keep it in close proximity to other devices emitting electromagnetic fields, for example phones and computers. These devices emit their own magnetic fields, which can interfere and slow down the fob transmitter. RepairPal states that the fob could stop working if it is placed too close to the gadgets.

Maintenance

In contrast to the traditional car key, a smart one utilizes technology to control the locks on your vehicle and perform other functions. It works by transmitting a signal to antennas situated inside and outside of your vehicle. These antennas detect the fob's signal and connect with the car's computer. The car interprets the signal and allows you to open or start it without using a physical key.

New cars are packed with the latest electronic technology, and the fob is now a hub for many of these functions. The most obvious features are locking and unlocking your car, remote start and chirping sound to aid in locating your vehicle in a parking lot. Some fobs allow you to save specific settings for different drivers, as well as remotely open windows and sunroofs.

The fob is a complicated electronic device that has an integrated board that can be damaged if utilized too vigorously or exposed to extreme cold or heat. The transmitter could break if it's damaged by being dropped or smashed. The battery contacts may become bent.

These issues can be challenging to diagnose and fix. You can use your smartphone to overcome this issue to determine if it's working. However it is important to keep a spare key in your pocket in case. You can purchase a generic replacement for most OEM smart keys, which costs up 70% less and comes with a three-year more than OEM guarantee.