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How to Program a Car Key Modern cars come with more than a key that can start the engine. They also have a remote control that can lock or unlock doors. These key fobs must be programmed in order to work. It is possible to program some car keys by the owner, however it is recommended to speak with a professional. This will help to avoid any damage to the computer system and ensure that the new key functions correctly. How to Program a Key Most cars had basic key systems prior to the turn of 21st century. The keys themselves were just metal and featured grooves that were connected to the internal parts of the ignition cylinder. However, as time progressed and technology improved as it did, automobile manufacturers began to combine electronic and physical protocols to protect against theft. These key systems are known as transponder keys or chip keys, and are designed to make it difficult for thieves to start the vehicle. The key chips have an unique serial number which transmits a signal to the receiver inside your car. When the signal is received it compares it with a code stored in the car's computer. If the codes match, the car will start. If not, it won't start at all. This is one of the primary reasons why you should always keep a spare key for your car, especially when you use a transponder-based system. You'll require specialized equipment to learn how to program keys. You'll also require the blank key for your specific model and make. They can be bought at a dealership or by a locksmith but you must make sure that they are the right ones. If you try to use a key from an alternative model, it will not work. Start the process by inserting the new key in the ignition and turning it to “on”. It is necessary to leave the new key in this position for approximately 10 minutes and 30 second. After the time has passed, you can remove your key and verify that the security indicator on your dashboard has gone off. If not, you'll need to do it again for the third time. Be aware that this method can only work with GM vehicles however it isn't 100% secure. If cut and program car keys seeking a more secure and reliable option, you should seek out a professional locksmith or dealer to get your vehicle programmed with chips. They will have the tools and equipment needed to access your car's onboard diagnostics port and make the change. Keyless Entry Systems Keyless entry systems grant access to properties without the requirement for a physical credential. Security is achieved through the combination of sensors and an onboard computer. It is possible to monitor and control the system from anywhere in the property. Keys and locks are not required. The system is also able to detect and deactivate lost or stolen cards. In addition, the latest models are cloud-based and permit remote management and configuration. Modern automobiles are equipped with keyless entry systems. The system works by emitting radio signals which are picked up using the keyfob. The signals are then compared against the correct code that is stored in the car's computer, and when everything is in order, the car will unlock. If the signals don't match, the car will not start. There are a variety of steps you can follow to program your new key fob, if it's not already programmed. First, you'll need ensure all the doors are locked, with the exception of the driver's side. You'll need the original key fob and any extras that you want to program. You may also visit the local auto parts store to determine if they carry the right tool for your vehicle. If none of these methods work, you'll need to consult your owner's manual or an expert locksmith. Once you have the proper tool Once you have the correct tool, you can begin process of reprogramming your key fob following the manufacturer's instructions. The process is usually quick and easy. You might be told to insert the new key in the ignition when all doors are shut and then press the button on the keyfob after a certain time period. The car may respond by turning off the doors or emitting an audible chime, which is a sign that the key was successfully programmed. Many locksmiths use special tools to get around the EEPROM security built into your car's remote or key fob. However, this is an extremely risky procedure and comes with the possibility of corrupting the data on your car's computer. This should be left to a professional, who can lower the chance of data corruption and ensure that your keys are properly programmed. Transponder Keys Transponder keys, also known as chip keys, come with a microchip built into the head of the key. The antenna ring transmits electromagnetic energy to the transponder when the key is put into the barrel of the ignition lock. The chip absorbs this energy and then transmits a radio frequency signal that contains an identification code. This code is in line with the unique serial numbers in the car's computers. This stops any attempts by anyone else to start the car since only right keys can be used. This technology is believed to be more secure than traditional keys for cars because it makes it much difficult for thieves to “hot wire” an automobile and get it started. It's not foolproof and thieves have discovered ways to trick and defeat the system. Therefore, even vehicles with a transponder keys aren't safe from theft. Depending on the brand and model of your vehicle, you may be capable of programming a new transponder key by yourself using a key programmer that's compatible with the car you own. The key programmer should come with an easy-to-follow guide to walk you through the process of programming your key. Follow the directions and switch on the security lights on your dashboard prior to beginning your engine. If you're not comfortable programming keys or if your vehicle comes with more advanced features, such as remote head keys or smart keys, you can turn to a professional locksmith assistance. They'll have the tools and equipment needed to cut blank keys, erase the old key from the computer of the car, and program the new key for it to work correctly. This will save you money and time and ensure that your car's safety system operating just as it should. Plus, it's a lot more secure than doing it yourself! If you use a wrong key programmer or follow a guide that is not official or instructions, the information stored in your car's system could be corrupted and the new key won't work. Remotes If your car keys don't work, you might need to reprogram them. It's a simple procedure for most modern vehicles that have key fobs. However, some models are more complicated and require programming with the aid of a special device that's usually available from the auto locksmith or dealer. Fortunately, the majority of modern automobile manufacturers have improved their key systems to be more secure to reduce vehicle thefts. The key system is designed in a way to prevent hot-wiring, which is the act of using a key from an other vehicle to start the engine of your car. To ensure that this method works, you will need at least two key fobs functioning for your vehicle. It's essential to have two spare keys available. The keys have electronic chips which communicate with the car's receiver using radio signals. The computer compares the key's code with the database. If the codes match the car will be able to start. If the codes don't match, the car will not start or remain dead. Most of these electronic key can be programmed and replaced by an expert locksmith or auto dealer with the proper equipment. The process is fairly simple if you can find a low-cost key programmer on the internet or at an auto parts store. You'll need to follow a sequence of steps, which includes inserting the key into the ignition, turning it on, without starting the engine, then turning the key off. You'll have to repeat this a certain number of times within a specified time frame for your vehicle to enter programming mode. This is indicated by the door locks chiming or an audible chime. Certain cars of the present can only be programmed by means of a tool connected to the onboard diagnostics port, or an EEPROM programming procedure. Most of these tools are costly and are therefore not affordable for most car owners. Most car experts recommend consulting with a professional auto dealership or locksmith to program your keys.