What is a Smart Key Car Key?

Also known as proximity Auto Keys R Us as well as key fobs, remote keys, smart keys are used to unlock doors and start engines without having to insert the physical key. They communicate with radiofrequency signals.

In addition, it helps keep cars secure by blocking attempts at hotwiring. Smart keys emit unique encrypted signals that block them from being accessed by other vehicles.

Convenience

You can lock and Auto Keys R Us unlock your vehicle without the need to insert the key into the ignition slot. Simply touch the handle on the trunk or door. A lot of modern cars also have the ability to remotely start your engine. This is particularly useful when you're bringing groceries into the vehicle or transporting passengers, or equipment.

This technology is designed to help protect against theft of vehicles. Instead of transmitting a single frequency signal like a regular key fob does smart keys send out various encrypted signals to a car's embedded antennas as you approach it. How Stuff Works Electronics explains that this is a way to prevent other cars from receiving and responding to the same signal.

Certain manufacturers also have a computer chip inside the vehicle that detects the unique fingerprint of every key. This makes sure that only authorized users are using it. This is useful if you lend your car to family members or friends.

Some smart keys can store user settings, so that seat, steering wheel, mirror and stereo presets can be automatically set when the key is in range of the car. For additional convenience, certain smart keys can be programmed to stop the vehicle from exceeding a certain speed limit once it has been initiated with that specific key. This can help keep inexperienced drivers safe and can be beneficial for families with young children in the back.

Security

Traditionally, car keys have been made of metal and used to unlock the ignition. Smart keys eliminate this requirement. Smart keys come with an electronic chip that transmits a signal to your car's antenna. The car detects this signal when the driver presses on the trunk release or door handle. It is now impossible to lock the keys in your vehicle.

The signal sent by the smart key to your vehicle is encrypted to ensure that only you are able to use it. In addition, most models will shut off the engine in the event that the vehicle was not launched in the past few minutes. This is especially helpful when you are in a hazardous location or need to leave your vehicle for any reason.

A number of systems also include a backup system for opening and re-starting the car if the battery of the smart key is drained out while on a ride. The backup system typically consists of placing the key into an opening or keeping it near a specific area of the cockpit. This transfers energy to an electric motor. Certain manufacturers also include an emergency mechanical key blade in the key that can be used to open the trunk and start the car if needed.

Battery Life

Most newer cars have keyless entry and push button starting systems, controlled by a smart key fob that makes use of proximity technology to connect with the car. These systems are powered by a small transmitter that is powered by a lithium coin-sized battery. Like any other battery that will eventually require replacement.

Although smart key fobs are made to last for years but they may 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. The key fob's light blinks.

It's not unusual for the transmitter inside a smart key to drain the battery. The smart key transmits the signal each when you press the button. However, most of the time, it doesn't do anything. The battery of a smart key can be used to last for several years of signalling to lock and unlock.

The fob may also drain the battery when it is kept near other devices that emit electromagnetic field such as phones and computers. These gadgets emit magnetic fields of their own which can cause interference and slow down the fob transmitter. RepairPal reports that the fob might be inoperable if placed too close to the gadgets.

Maintenance

Smart keys differ from traditional metal keys by using technology to control the security of your vehicle, as well as perform other functions. It works by transmitting a signal to antennas that are placed both inside and outside your vehicle. They detect the fob's signal and connect with the car's computer. The car interprets the signal, allowing you to start or open the door without a physical key.

The fob is now a hub of many electronic features that are now available in new automobiles. The most obvious are locking and unlocking, remote starting, Auto Keys R Us and chirping sounds that aid in finding your car in a parking space. Some fobs allow you to save specific settings for different drivers, as well as remotely open windows and sunroofs.

The fob is a complex electronic device that has an integrated board that could be damaged if subjected to extreme cold or heat. The transmitter can break in the event of it being hit or dropped and the battery contacts can also become bent.

These problems can be hard to diagnose and solve. Try using your phone to solve the issue and see if that works however, it's always a good idea to keep a spare key inside your pocket in a case. You can buy an ordinary smart key replacement that is up to 70 percent less than OEM keys and comes with a three-year warranty.