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Smart Keys For Cars

Smart keys are wireless remotes which allow you to open doors and open the trunk without the need for a traditional mechanical blade. It also lets you start the vehicle without having to turn the key.

Most smart keys come with battery indicators and will notify you ahead of a low battery. Replacing the battery is a fast and simple procedure that doesn't require any special tools.

Convenience

Smart keys are able to unlock doors and trunks as well as turn on the engine of the vehicle without the driver having to use a key made of metal. They also have features designed to deter vehicle burglaries and thefts, including the panic key that makes noises to scare off potential thieves in areas that are not accessible to them, like garages underground.

Key fobs can perform all of these functions via a radio transmission between the car key fob and the car using low-power wireless technology. This is a fantastic feature, especially for drivers who are on the move and do not have much time.

Smart keys are usually more like plastic cards than actual keys. They are used to unlock the trunk or doors when the button is pressed on the fob. Some even have an integrated touchscreen that allows users to control certain settings on their vehicle, including the climate and the audio.

The RFID signal that is sent between a key fob and car is unique, encoded and linked to the vehicle's onboard computer. This makes it impossible for tech-savvy criminals to connect a stolen car equipped with the key fob. These fobs can also be programmed to send a new frequency signal each time they're used, so the computer onboard won't recognize an old one as the "true" signal.

Security

Many people are reluctant to adopt digital keys as they are concerned about security. While having a tangible key fob in your hand can feel more secure, it's important to realize that digital keys are also more secure than you might think. They're encrypted and the signal that they send to a vehicle can be verified by a specific computer onboard. The car won't begin when the smart key fob is stolen.

In contrast to traditional key fobs smart keys operate by utilizing built-in antennas inside your car and the radio pulse generator inside the key fob that allows it to communicate with your vehicle and perform basic functions such as unlocking and starting it. This feature lets you access your vehicle without having to insert an actual key into the ignition or lock, which is often difficult.

If you have lost your smart key or if its battery dies it is possible to find an alternative method to open and start your car. Emergency starting can be accomplished by placing the key into the slot, or by holding it near a particular space in the cockpit where an inductive coil is able to transfer energy.

Additionally, the majority of smart keys have a low-battery indicator that alerts you before it completely dies. You can replace the battery yourself should you need to.

Auto-adjusting settings

Instead of using a physical car key, smart key replacement keys use radio waves to unlock and lock the car. They're also able to remotely start your engine and track the location of the vehicle in case you forget where it's parked.

Some smart car replacement key keys are programmed to automatically adjust the exterior and interior of the vehicle depending on the key you've detected. The car can automatically adjust the position of seats and mirror settings, as well as climate control depending on the key that is being used. This is useful if you have multiple drivers, or you want to limit certain features when you loan your car to a novice driver.

Smart keys also have the benefit of encryption, which can prevent theft. This isn't a possibility with traditional keys. This makes it difficult for thieves with the latest technology to gain access to a vehicle by using a valid frequency that is reported by How Stuff Works Electronics. Smart keys send a unique, encrypted message every time the remote is unlocked.

The battery of a smart key will eventually wear out, just like any other battery-powered device. Most systems come with backup systems to unlock the car and start it in case the battery fails. The emergency method may differ but usually it involves holding the key within the proximity to the lock sensor on the car or pressing a key button that activates the emergency starter.

Battery Backup

Modern smart keys are known by the names keyless entry systems and passive entry. They utilize an electronic transmitter to unlock your vehicle. The transmitter is situated inside the key fob that you carry around, and the receivers are found inside and outside your vehicle. When you drive by the vehicle, the radio frequency signal from your smart car key key is picked up by the receivers and triggers the doors and ignition.

This system has many advantages, including not having to hunt in the dark for keys, however it is also vulnerable to certain types attacks. For instance, if the key's battery goes out or is stolen, a third party could be able to pick up the low-frequency transmission signals of your key and open your car, reports How Stuff Works Electronics. This is why most smart keys come with encrypted signals that make hacking difficult.

However, these systems may also be interfered with due to electromagnetic fields generated by cell phones, computers and other devices. If you find that your smart key fob is not functioning as it should, it could be caused by an interference issue. In this instance, you shouldn't put your key in proximity to such devices until the battery in the fob has been replaced. Most smart keys will inform you when their batteries are depleted and the process of replacing them is relatively simple.