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Smart Keys For Cars Smart keys are wireless car remote that works without the traditional mechanical blade and can unlock the doors and open the trunk from an extended distance. smart car keys replacement allows you to start the vehicle without having to turn a key. The majority of smart phones come with battery indicators that warn you in advance of a low battery. Replacing the battery is a quick and easy process that doesn't require any special tools. Convenience Smart keys are designed to open trunks and doors and turn on the car engine and activate the ignition without the driver having to utilize a traditional metal key. They also have features that can deter burglaries and thefts, including the panic key which makes sounds to frighten away criminals in remote areas like underground garages. These key fobs perform all of these functions by sending a radio transmission between the car key fob and the car via low-power wireless technology. This is a wonderful option for drivers who are constantly in motion and don't have time to spare. Smart keys are generally more like plastic cards than actual keys. They are used to unlock the trunk or doors when a button is pressed on the fob. Some of them even come with an integrated touchscreen that allows users to control certain settings of their vehicle, including audio and climate. The RFID signal that is sent between a car key fob is unique, encoded and connected to the vehicle's onboard computer. This makes it nearly impossible for criminals with a technological background to wire a stolen vehicle equipped with the key fob. They can also be programmed to send a different frequency signal each time they're used so that the computer isn't able to recognize the old one as the true signal. Security Many people are hesitant to adopt digital keys as they are worried about security. While having a tangible key fob on hand may feel more secure, it's important to know that digital keys are more secure than you might think. They're encrypted and the signal they transmit to a car is checked by a special onboard computer. This means that even if the smart key fob is stolen the car will not start. Unlike traditional key fobs smart keys operate by utilizing built-in antennas in your vehicle and a radio pulse generator in the key fob to connect with your vehicle and perform functions like unlocking or starting it. This allows you to gain access to your vehicle without having the physical key in the lock or ignition. If you lose your smart key or if its battery goes out the majority of systems provide an alternative way to open and start your vehicle. Emergency starting can be achieved by inserting the key into an opening, or keeping it close to a specific 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 warns you well before it completely dies. If needed, you can easily replace the batteries on your own. Auto-adjusting settings Instead of physical keys instead, the smart key makes use of radio waves to unlock and lock the car. They also allow you to remotely start your engine and keep track of the vehicle's location in case you forget where it's parked. Some smart keys have settings that automatically adjust your vehicle's interior and exterior depending on the key you've chosen to use. The car can automatically adjust the position of seats, mirror settings and climate control depending on the type of key used. This is beneficial if you have multiple drivers or need to limit certain features when you lend your car to an inexperienced driver. Smart keys also have the benefit of using encryption to protect against theft. This is not a possibility with traditional keys. This technology makes it extremely difficult for thieves who are tech-savvy to gain access to a vehicle by mimicking the frequency of a valid signal, reports How Stuff Works Electronics. Smart keys transmit a unique encrypted signal each time the vehicle is left unlocked or remotely opened. As with any other device powered by batteries the battery in a smart key will eventually deplete its juice. The majority of systems have backup systems to unlock the car and then start it in case the battery fails. The emergency method varies in the majority of cases, but it involves holding the key within range of the car's lock sensor or pressing the button on the key which activates the emergency starter. Battery Backup Modern smart keys are also recognized by the names of keyless entry systems and passive entry. They make use of an electronic transmitter to unlock your vehicle. The transmitter is integrated into the key fob that is carried with you and the receivers can be found within your vehicle and around the outside of it. When you drive by the vehicle the radio frequency signal from your smart key is recognized by the receivers and triggers the doors and ignition. While this system comes with many advantages, such as not having to search in the dark for the key, it can be vulnerable to certain kinds of attacks. For instance, if a key's battery is damaged or is lost, another person could be able to pick up the low frequency transmission signals from your key and then open your car, as per How Stuff Works Electronics. This is why the majority of smart keys are equipped with encrypted signals that make hacking difficult. However, these systems could be affected by electromagnetic fields generated by computers, cell phones and other devices, so if you find that your smart key fob is not functioning properly, it could be due to an interference problem. In this instance you should not place your key near any device until the battery of the fob has been replaced. Most smart keys will alert you when their batteries are depleted and the replacement procedure is quite simple.