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What is a Smart Key Car Key?

Variously known as keys for proximity Key fobs, proximity keys, or remote keys, smart keys can be used to unlock doors and start engines without the driver needing to insert the key. They communicate using radiofrequency signals.

Among other things, this helps keep cars secure by blocking hotwiring attempts. Smart keys transmit unique encrypted signals that prevent access to other vehicles.

Convenience

You can lock and unlock your vehicle without inserting the key into the ignition slot. Simply touch the handle on the door or trunk. Many modern vehicles have the option to start your engine from a distance. This is particularly useful when you're bringing in groceries, or transporting passengers or equipment.

This technology is designed to prevent vehicle theft. Instead of transmitting only one frequency signal like a regular key fob does smart keys send out a series of encrypted signals to a car's embedded antennas as you are near it. What does this mean? Stuff Works Electronics explains that this is a way to prevent other cars from receiving and responding to the same signal.

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

Certain smart key market keys also store user preferences, allowing 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. Certain replacement smart key keys can be set up to prevent the vehicle from exceeding the speed limit when the key is used to start it. This is a great way to ensure that new drivers are safe and it's a good idea when you have children in the back.

Security

Traditionally, car keys have been cut from metal and used to unlock the ignition. With smart key technology however, this is no longer required. Smart keys have an exclusive chip that sends signals to your car's antenna. The car detects this signal when the driver presses on the trunk release or door handle. This means it's impossible to lock your keys in your car any longer.

The smart key's signal to your vehicle is encrypted so that only you are able to use it. Additionally, the majority of models will stop the engine if the car has not been launched in the past few minutes. This feature is particularly helpful if you are in a hazardous location or need to leave your vehicle for any reason.

In addition, if the smart car spare key key battery gets depleted during a ride, many systems come with a backup plan of opening and starting the vehicle. The backup system involves inserting the key in a slot or holding it close to a specific area of the cockpit which transfers energy to an electric motor. Certain manufacturers also include an key blade that is an emergency mechanical lock inside the key that can be used to open the trunk and start the car should it be needed.

Battery Life

The majority of newer cars come with keyless entry and push-button start systems which are controlled by a key for Smart car fob that uses proximity technology to connect with the car. These systems are powered by a tiny transmitter which is powered by a lithium coin-sized battery. It will eventually need to be replaced like any other battery.

Although smart key fobs are designed to last for years, they can suddenly lose power. A dead key fob means that you can't unlock or start your car, even if you put it close to the front door. The key fob's light blinks.

It is not uncommon to see the transmitter of a smart key to drain the battery. It sends a signal to the car every time you push a button, but most of the time the smart key is not doing anything. The battery of a smart key is large enough to last for several years of lock/unlock signals.

The fob also drains the battery if it is placed near other devices that emit electromagnetic field like phones and computers. These devices produce their own magnetic field which could interfere with the fob's transmitter and cause it to work slower. RepairPal reports that the fob might stop working if it is placed too close to the gadgets.

Maintenance

As opposed to the traditional car key, a smart one utilizes technology to control the locks on your vehicle and perform some other functions. It operates by transmitting a signal through antennas situated inside and outside of your vehicle that detect the fob's presence and communicate with the car's computer. The car interprets the signal and allows you to open or begin it without having to use the physical key.

The fob is now a hub of numerous electronic features found in modern vehicles. The most obvious uses are locking and unlocking your vehicle, remote starting and chirping sound to aid in locating your vehicle in a parking lot. Some fobs also let you store specific settings for different drivers and open windows remotely and sunroofs.

The fob is an intricate electronic device that includes an integrated circuit board that can be damaged if it is used too hard or exposed to extreme cold or heat. The transmitter can break when it's hit or dropped or smashed. The contacts on the battery can become bent.

The issues are often difficult to identify and solve. You can try using your phone to solve the issue and see if that works however it's a good idea keep a spare key in your pocket, just in case. You can purchase an alternative to the majority of OEM smart keys for up to 70 percent less and comes with a three-year, more than OEM guarantee.