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What is a Smart Key Car Key? Smart keys are also known as proximity keys or key fobs. They can be used to unlock doors as well as start engines without having to insert physical key. They communicate with radiofrequency signals. Among other things, this helps protect vehicles by preventing attempts to hotwire. Smart keys also broadcast unique encrypted signals to prevent them from being used by other vehicles driven by drivers. Convenience You can lock and unlock your vehicle without having to insert the key into the ignition slot. Simply tap the handle on the trunk or door. Modern vehicles often have an option that allows you to remotely start your engine. This is particularly helpful when you're taking groceries home or transporting equipment, passengers, or passengers. This technology is designed to stop theft of vehicles. Smart keys transmit encrypted signals instead of a single frequency, like a normal keyfob. What does this mean? Stuff Works Electronics explains that this is a way to prevent other cars from receiving and responding the same signal. Certain manufacturers also have a computer-chip in the vehicle that recognizes the unique fingerprint of each key. This helps to ensure that only authorized users are using it. This is helpful in the event that you lend your car to family members and friends. Some smart keys can store user preferences, so that the seat, steering wheel mirror, seat and stereo presets are automatically set when the key is in range of the car. To make things easier, some smart keys can be programmed to stop the vehicle from exceeding a speed limit when it is started with that particular key. This is a great method to keep new drivers safe, and it's also a good idea to have children in the back. Security Traditionally keys were made from metal to unlock the ignition. Smart key technology eliminates this requirement. Smart keys have a specific chip which sends signals from the antenna to your car. The vehicle recognizes 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 that the smart key transmits to your car is encrypted, which means that only the owner of the car can use it. A majority of models also shut down the engine when the vehicle hasn't been started in a few minutes. This feature is particularly useful if you're in an unsafe zone or need to leave the vehicle for any reason, such as at a gas pump. In addition, if the smart key battery runs out during a trip, many systems have a backup method of opening and starting the vehicle. The backup method typically involves placing the key into the slot or putting it near a specific area of the cockpit. This transfers energy to an electric motor. Certain manufacturers have a mechanical key blade that can be used in an emergency to open the trunk or to start the car. Battery Life Many newer cars have keyless entry systems and push-button starters. These are controlled by a smart device that communicates with the car through proximity technology. These systems are powered by a small transmitter which is powered by a lithium coin-sized battery. Like all batteries that will eventually require replacement. The majority of smart key fob batteries last for a long time However, that doesn't mean they'll never lose power and stop working quickly. If the fob is dead, you won't be able to lock or start the car even when you hold it close to the front door, and the key fob light is flashing. It's not uncommon for the transmitter inside a smart key to drain the battery. replacement smart car key emits a signal every time you press a button. However, most of the time, it doesn't do anything. The battery of a smart key is large enough to last for a long time. signalling to lock and unlock. The fob also tends to drain the battery when you keep it close to other devices emitting electromagnetic fields, such as phones and computers. These devices generate their own magnetic field which could interfere with the fob's transmitter and cause it to operate more slowly. RepairPal states that the fob might not function if it's placed too close to the gadgets. Maintenance In contrast to the traditional car key, a smart key uses technology to control the locks on your vehicle and perform other functions. It works by sending an electronic signal from the fob to antennas located inside and outside the vehicle. These antennas detect the signal and then communicate with your car's computer. The car interprets the signal and allows you to begin or close it without having to use the physical key. New cars are loaded with the latest electronic technology and the fob is now a hub for many of these functions. The most obvious ones are locking and unlocking, remote starting, and chirping sounds to aid in finding your car in a parking lot. Some fobs allow you to store various settings for different drivers, and can even remote-operated windows and the sunroof. The fob is a complex electronic device that includes an integrated board. It can be damaged if it is placed in a position that is too harsh or exposed to extreme cold or heat. The transmitter can break in the event of it being hit or dropped or smashed. The contacts on the battery can become bent. These problems can be hard to pinpoint and fix. You can try using your phone to bypass the issue and see if that helps however it's always a good idea to keep a backup key in your pocket to use in case. You can purchase an equivalent replacement for the majority of OEM smart keys, which costs up to 70% less and comes with a three-year, better-than-OEM guarantee.