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Smart Car Key Reprogramming Whether you need to replace the battery or your smart car key isn't working properly, you will need a professional locksmith who can swiftly and safely fix it. A locksmith will also have the tools to reprogram the new key fob. Before beginning the reprogramming process You must sit in the driver's chair and close all doors. This will allow you to program your keys without affecting the car's electronic systems. What is a smart-key? A smart key is a car fob that can unlock your doors, lock your trunk, and even start the engine without having physically touch the vehicle. It transmits signals to the car through an encrypted microchip that's connected to the vehicle's onboard computer. This technology prevents thieves from hacking into the car and using it for. Smart keys are a great alternative to traditional keys. While modern vehicles can be started without a key in many instances, they make the process more practical. They allow users to use their smartphones to lock, unlock and even remotely start the car. This can be a huge comfort for those who get tired of fishing around in their pockets looking for the keys to their car's physical. According to Open Road Auto Group, the main difference between the regular key and a smart key is that smart keys don't transmit the same frequency signal repeatedly again. This is applicable to all makes and models that utilize the same key and could be used to steal vehicles. Instead, smart keys send an encrypted signal every time they unlock the door or remotely open the trunk. This will deter tech-savvy thieves [source: Popular Mechanics] from getting your vehicle. Some smart keys can also save information about the car, including power seat and mirror settings. This is extremely useful in times of emergency. Many smart keys also feature an emergency battery backup that can help in the event of an outage. How do smart keys function? Smart keys are a fantastic method of unlocking your vehicle without the need to turn the traditional car keys. The key fob sends an electrical signal to a computer that is processed by the antennas. The computer then issues a command to open the door or start the engine. Another benefit is that smart keys are a much more secure than traditional keys. They are equipped with RFID (radio-frequency identification) technology, which is unique to the key and the car. This means that it is virtually impossible to steal a car with a smart key. Even if a criminal successfully enters the vehicle and tries to connect it to the internet, the car won't start without the encrypted code from the key fob. Smart keys are also useful, since they automatically lock your car whenever you're out of range. This is especially useful in the event that you are prone to forgetting to lock the doors after getting out of your car. Smart keys are only restricted by the fact they need to be programmed correctly to function properly. This involves entering a certain sequence of commands using the diagnostic tool, or following on-screen instructions. This is a task that many people aren't willing to do by themselves, and so it's usually left to professionals. How do I program a smart key? There are several ways to program Smart Keys. The procedure will vary based on vehicle, so it's best to read the owner's manual for the specific model you have. In general, you put the key into the ignition prior to turning it on. When the security light is flashing, you can remove the key. Then, follow the instructions on screen to reset and program the key fob. Contacting a local automotive dealership or locksmith is another option. Many locksmiths provide smart car key replacement and programming So you shouldn't have to be difficult. A lot of car dealerships also offer these services, so if you already have a relationship with the dealer, they may be able to assist. To program a new key you'll require the vehicle identification number (VIN). It is a unique number that identifies your car and its parts. It is located on your insurance card or registration. Once G28 have the VIN you can follow the instructions on screen to set up your key fob. Once the key is programmed, you should be able use it to lock and unlock the car. However it will not be able to start your engine. If you'd like to start the engine, you'll have to speak with a locksmith or dealership. Many automotive dealerships now provide smart key repair and replace services at affordable rates. How much will it cost to program a smart key? The majority of modern car keys are in the form of key fobs that have an integrated chip. The chip allows the car key to connect via radio waves with the vehicle when a key fob button is hit. If a valid number of characters are sent through the key fob the car, it will unlock the doors and begin the engine. If your key fob is not working, it may have to be reprogrammed in order that it can work with the current settings in your vehicle. This is usually done by a dealer, but locksmiths can also do it. Depending on the type of vehicle you have, the cost to reprogram a smart key will vary. It's tempting to program your own key, but this is not a smart idea. Reprogramming a smart car key is a tense procedure that requires specific tools and the knowledge of circuit boards and electronic components. Attempting to program your own car key could also harm it, resulting in the need to replace it. It's not cheap to have your key fob reset by a dealer. However, it's worth it if want your key fob to keep working properly. If you're looking to save money, there are a number of online guides that can walk you through the process of reprogramming your smart key at home.