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Smart Keys For Cars Smart keys are wireless car remote which works without the traditional mechanical blade. It can unlock the doors or pop the trunk from a distance. It also allows you to start your car without needing to turn the key. G28CarKeys come with battery indicators that notify you of a low charge well ahead of time. It's simple to replace the battery without special tools. Convenience Smart keys are designed to open trunks and doors and trunks, turn on the car engine and turn on the ignition without needing to use a traditional metal key. They also come with features that are designed to prevent burglaries and vehicle thefts, such as a panic button that generates noise to scare away people who may be suspicious of thieves in isolated areas like underground garages that are parking. These key fobs do all this by sending a radio signal between the car and the key fob by using the low-power wireless technology. This is an excellent convenience, especially for those who are often on the go and don't have much time to spare. Smart keys generally look more like plastic cards than actual keys. They can be used to unlock the trunk or doors when a button is pressed on the fob. Some of them even come with a built-in touchscreen that lets users to control certain settings on their vehicle, like the climate and the audio. The RFID signal transmitted between the key fob and a car is unique, encrypted and tied to the computer onboard, making it almost impossible for thieves who are tech-savvy to connect a stolen vehicle equipped with one. They can also be programmed to transmit a different frequency signal every time they're used, to ensure that the computer doesn't recognize that old one as the true signal. Security Many people are reluctant to adopt digital car keys for the reason that they fear security. While having a physical key fob to hand does feel more secure, it's important to realize that digital keys are more secure than you think. Digital keys are secure and the signal they transmit to a vehicle is checked by an onboard computer. The vehicle won't start if the smart fob is stolen. In contrast to traditional key fobs smart keys operate by utilizing built-in antennas in your car and the radio pulse generator inside the key fob. This allows it to communicate with your vehicle and perform standard functions like unlocking or the start of 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 is often a hassle. Most systems offer an alternative method of opening and starting your car if you lose your smartkey or battery dies. For instance the emergency start can be accomplished by putting the key in the slot or keeping it in a particular spot on the car's cockpit, in which an inductive coil can transfer energy is hidden. Additionally, the majority of smart keys have a low battery indicator that will alert you before it goes completely dead. If necessary, you can easily replace the batteries yourself. Auto-adjusting settings Instead of a physical car key Smart keys use radio waves to unlock and lock the vehicle. They also have the ability to remotely start your engine and keep track of the location of your vehicle in case you don't remember where it's parked. Certain smart keys can be programmed to automatically adjust the exterior and interior of the vehicle depending on the key you've detected. The car will automatically adjust the seat position and mirror settings, as well as climate control based on the type of key used. This is useful if you are looking to restrict certain features or have multiple drivers. Another benefit of smart keys is they employ encryption to stop theft, which isn't a possibility with traditional keys. This makes it very difficult for thieves with a technological edge to steal a vehicle by mimicking an acceptable frequency signal according to How Stuff Works Electronics. Smart keys send a unique, encrypted signal every time the vehicle is locked or remotely opened. The battery of a smart key will eventually wear out, just like any other battery-powered device. The majority of systems are designed with a backup strategy to unlock and start the car when the battery is not working. The emergency method is different however, it is usually holding the key within the proximity to the sensor for the lock on the car or pressing a key button that triggers the emergency starter. Battery Backup Modern smart keys, sometimes referred to as keyless entry systems or passive entry make use of a receiver and transmitter to unlock your vehicle. The transmitter is embedded in the key fob that you carry around and the receivers are placed in your vehicle as well as around the outside. The receivers are able to detect the radio frequency signal that is sent by your smart key when you get close to your vehicle and open the doors and ignition. This system has many advantages, like not having to look in the dark to find keys, however it is susceptible to certain types of attacks. For instance, if the key's battery is damaged or is lost, someone else could detect the low-frequency transmission signals from the key and gain access to your car, reports How Stuff Works Electronics. This is why most smart keys are equipped with encrypted signals to make hacking a challenge. If you find that the smart key fob doesn't work as expected, it could be due to a problem with interference. In this situation you shouldn't place your key near such devices until the battery on the fob has been replaced. Fortunately, many smart keys will inform you ahead of time if their batteries are running low and the procedure to replace the batteries is quite easy.