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What is a smart key (url) Car Key?

Variously known as proximity keys, key fobs or remote keys, smart keys function to unlock doors and start engines without needing to insert a physical key. They communicate with one another by using radiofrequency signals.

This helps to keep vehicles safe by preventing hotwiring. Smart keys also transmit unique encrypted signals that prevent them from being used by vehicles of other drivers.

Convenience

You can lock and unlock your vehicle without needing to insert the key into the ignition slot. Simply touch the handle on the door or trunk. Many modern cars also come with a feature that lets you to start your car wirelessly. This is especially useful if you're bringing groceries into the vehicle, or transporting passengers or equipment.

This technology is designed to help prevent vehicle theft. Instead of sending a single frequency signal, similar to a normal key fob, a smart key repair key sends out various encrypted signals to a car's antennas that are embedded when you approach it. What does this mean? Stuff Works Electronics explains that this prevents other cars receiving and responding to the same signal.

Some manufacturers also use an electronic chip in the vehicle which recognizes the unique fingerprints of each key. This can help ensure that only authorized users use it. This is particularly useful for when you loan your vehicle to family members or friends.

Some smart keys also store user preferences, so that seat, mirrors, and steering wheel adjustments as and stereo presets can be set automatically when the key is within reach of the vehicle. To make life easier, certain smart keys can be programmed to stop the vehicle from exceeding a certain speed limit when started with that particular key. This is a great method to ensure that new drivers are safe and also recommended to have children in the back of the vehicle.

Security

Traditionally keys for cars were made of metal and used to unlock the ignition. With smart key technology this is no longer required. Smart keys have an electronic chip that transmits signals to your car's antenna. The signal is then recognized by the vehicle when the driver presses on the handle on the door or trunk release. It is now impossible to lock your keys into your vehicle.

The signal that the smart key sends to your car is encrypted, which means only the owner has the right to use it. In addition, many models will turn off the engine if the car hasn't been started within the last few minutes. This feature is particularly helpful if you are in an unsafe location or you need to leave your vehicle for any reason.

In addition, if the smart key fob key battery gets depleted during a journey, many systems have a backup method to open and start the vehicle. The backup system typically consists of placing the key into the slot or putting it near a specific area of the cockpit that transfers energy to an electric motor. Some manufacturers also have an key blade that is an emergency mechanical lock in the key which can be used to open the trunk and start the car in case of need.

Battery Life

The majority of modern cars have keyless entry systems as well as push-button starters. They are controlled by a smart device that communicates with the car through proximity technology. These systems utilize a tiny transmitter, powered by a coin-sized lithium battery. As with all batteries it will eventually need replacement.

Even though smart key fobs are made to last for a long time however, they can suddenly lose power. A dead fob means you won't be able to lock or start your car even if you place it close to the front door, and the key fob light flashes.

It's not unusual for the transmitter of the smart key to drain the battery. It sends a signal to your car each time you touch a button, but most times the smart car key programmer key does nothing. A single lock/unlock signal takes just a tiny portion of the battery power of the fob and that's several years worth of signals' worth of battery life in the average smart key battery.

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

Maintenance

Smart keys are different from traditional keys made of metal because they use technology to control the locks of your car and perform other functions. It operates by sending a signal to the antennas located inside and outside your vehicle. These antennas are able to detect the fob's presence and communicate 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 numerous electronic features found in modern vehicles. The most obvious ones are locking and unlocking, remote starter, and chirping sounds to help you find your car in a parking spot. Some fobs also let you store specific settings for various drivers and open windows remotely and sunroofs.

The fob is a complex 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 be broken when it's dropped or banged, and the battery contacts can also become bent.

These issues can be difficult to determine and repair. You can try using your phone to bypass the problem and see if this works however, it's a good idea keep a spare key in your pocket, just in case. You can buy an alternative to the majority of OEM smart key copy keys, which costs up to 70 percent less and is backed by a three-year better-than-OEM guarantee.