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Smart Keys For Cars Smart keys are wireless remotes that can open doors and open the trunk without the need for a traditional mechanical blade. It can also be used to start the car without turning the key. Most smart keys have indicators for batteries that alert you to a low charge well ahead of time. Replacing the battery is a fast and easy process that doesn't require any special tools. Convenience Smart keys are designed to unlock doors and trunks and turn on the car engine and start the ignition without the driver needing to utilize a traditional metal key. They also have features that are designed to help deter break-ins and theft of vehicles, such as the panic button, which generates noise to scare away possible thieves or suspicious individuals in areas with no security like underground garages that are parking. The key fobs perform all this by sending an electronic signal between the car and the key fob by using low-power wireless technology. This is an excellent feature for drivers on the move and don't have a lot of time. Smart keys are typically more like plastic cards than actual keys. They can be used to open the trunk or doors when the button is pressed on the fob. Certain smart keys include touchscreens that allow users to control their vehicle's settings, such as climate and audio. The RFID signal transmitted between the key fob and the car is unique, encrypted and tied to the computer in the car making it nearly impossible for thieves who are tech-savvy to hotwire a stolen vehicle equipped with one. They can also be programmed to send a different frequency signal each time they're used so that the onboard computer isn't able to recognize the old one as the authentic signal. Security A lot of people are hesitant to use digital keys for their car for the reason that they worry about security. While having a physical key fob to hand does make you feel more secure, it's crucial to realize that digital keys are more secure than you might think. They're secure, and the signal that they send to a vehicle can be verified with a specially-designed onboard computer. The vehicle won't be able to start when the smart key fob is stolen. Contrary to traditional key fobs smart keys work by using built-in antennas inside your car and the radio pulse generator inside the key fob. This allows it to communicate with your vehicle and perform functions such as unlocking and starting it. This system allows you to access your vehicle without the need to insert keys that are physically placed in the ignition or lock which can be a hassle. If you lose your smart key, or if its battery dies there is an alternative way to open and start your car. Emergency starting can be achieved by placing the key into the slot, or by holding it close to a specific area of the cockpit, where an inductive coil could transfer energy. Most smart keys also have a low-battery indicator that warns you that the key is dead. You can replace the battery on your own should you need to. smart key repair -adjusting settings Instead of using the physical keys for your car, smart keys use radio waves to unlock and lock the car. The smart key can remotely start the engine and track your vehicle's location in case it is lost. it. Some smart keys have settings that automatically adjust the vehicle's interior and exterior according to the key you've chosen to use. The car will adjust the position of the seat, mirror settings and climate control depending on the key that is being used. This is very useful if have multiple drivers or need to restrict certain features when you loan your car to an inexperienced driver. Another benefit of smart keys is the fact they employ encryption to protect against theft, which isn't possible with traditional keys. This technology makes it very difficult for tech-savvy criminals to gain access to a vehicle by imitating a valid frequency, reports How Stuff Works Electronics. Smart keys send a unique encrypted signal each time the vehicle is left unlocked or remotely opened. Just like any other battery-powered device, a smart key's battery will eventually be depleted of power. The majority of systems are equipped with a backup plan to open the car and start it when the battery is not working. The emergency method varies in the majority of cases, but it involves holding the key within the range of the car's lock sensor or pressing the key with a button that activates the emergency starter. Battery backup Modern smart keys, often referred to as keyless entry systems or passive entry make use of a receiver and transmitter to unlock your car. The transmitter is situated inside the key fob that you carry around, and the receivers are located in and around your vehicle. The receivers pick up the radio frequency signal transmitted by your smart key when you get close to the vehicle and activate the ignition and doors. This system has many advantages, including not having to look in the dark to find keys, however it is susceptible to attacks of certain types. For instance, if the key's battery fails or it is lost, another person might be able to detect low frequency transmission signals that are transmitted by your key and unlock your car, according to How Stuff Works Electronics. This is why most smart keys are equipped with encrypted signals to ensure that hacking is difficult. However, these systems may be affected due to electromagnetic fields generated by cell phones, computers and other devices, so if you find that your smart key fob isn't working properly, it may be due to an interference problem. In this instance, you shouldn't put your key near these devices until the battery on the fob has been replaced. Most smart keys will alert you when their batteries are low, and the replacement process is fairly simple.