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How to Program a Car Key Modern cars come with more than just a key that starts the engine. They also have a remote control which can be used to lock or unlock doors. Key fobs have to be programmed in order to function properly. It is possible to program certain car keys by the owner, but it is advised to consult an expert. This will avoid any damage to the computer system of the vehicle and ensure that the key works correctly. How to program a key Prior to the beginning of the 21st century, the majority of cars had basic key systems. Keys themselves were metal and had grooves that corresponded to the internal parts of the ignition cylinder. As technology advanced the number of car makers began to combine electronic and physical protocols to stop theft. Key systems also known as transponder keys or chips keys, are designed to make it difficult for thieves to open the vehicle. The key chips come with a unique serial code which transmits a signal to the receiver inside your car. When the signal is received it compares it with the code that is stored in the car's computer. If the codes match, then the car will start. If not, it won't start at all. This is why you should keep an extra car key, particularly if your system is based on transponders. If you want to learn how to program keys, you'll require some special equipment. You'll also need an uncut key for your specific model and make. They can be purchased from an auto dealership or from a locksmith but you must make sure that they are the right ones. If you attempt to use a key that is from an alternative model, it won't work. To start the process, you need to insert the new key into the ignition and switch it to the “on” position. It is necessary to keep the key in this position for approximately 10 minutes and 30 seconds. Once the time is up you can take off the key and see if the security light on your dashboard went out. If it did not then you'll need to repeat the procedure a third time. This method is only compatible with GM vehicles and isn't 100% secure. If you're looking for a more secure and reliable solution, then you should visit a professional locksmith or dealer to have your car programmed with chips. These professionals have the necessary tools and equipment to connect to your car's onboard diagnostics port and make the change. Keyless Entry Systems Keyless entry systems give property access without requiring an actual credential. Security is achieved through a combination between sensors and an onboard computer. This lets you control the system and monitor its activity from any location on the property, and does away with the need for locks or keys. The system can also identify and deactivate lost or stolen cards. The most recent models also permit remote management and configuration as well as are cloud-based. Most modern cars come equipped with the keyless entry system. This system works by emitting radio signals that are received by an specialized keyfob. These signals are then compared with the correct code that is stored in the car's computer and if everything is in order the car will start to unlock. The car won't start if the signals are not identical. There are several ways to program your new key fob if it's not programmed yet. You'll first need to make sure that all doors except the driver's door are locked. You'll need to have the original key fob along with any additional devices you want to program. You can also check your local auto parts store to see if they have the appropriate tool for your car. If none of these methods work, you'll have to consult the owner's manual or an expert locksmith. Once you have the proper tool, you can begin the changing the programming of your key fob following the instructions of the manufacturer. This procedure is usually quick and simple. For car key programming , you could be instructed to insert your new key into the ignition while keeping the doors shut, and then press the button on the key fob within a short time period. The car could then respond by turning off the door locks or generating a chime to signal that the key was successfully programmed. Many locksmiths employ special tools to bypass the EEPROM security features that are built into your car's remote or key fob. But it's an extremely risky option and could lead to the possibility of corrupting the data on your car's computer. It is recommended to have an expert handle this because they will be able to minimize the chance of data corruption and also ensure that your keys are correctly programmed. Transponder Keys Transponder keys are also referred as chip key. They feature an embedded microchip in the head of the keys. The antenna ring transmits electromagnetic energy to the transponder whenever the key is inserted into the ignition lock barrel. The chip absorbs the energy and then transmits a radio frequency signal that contains an identification code. This code is in line with the unique serial numbers of the computer of the car. This is to prevent unauthorized attempts to begin the car, as only right keys can be used. It is believed that this technology will be more secure than traditional keys for cars because it makes it more difficult for thieves to “hot wire” the vehicle and start it. It's not foolproof and thieves have found ways to evade detection and defeat the system. So even cars with transponder key are not safe from theft. Based on the make and model of your vehicle You may be in a position to program a brand new transponder by yourself using a key programmer that's compatible with the car you own. The key programmer will come with an instruction manual that will guide you through the process of programming your key. Once you have the key and a key programmer, follow the directions carefully and ensure that the security light on your dashboard is turned on prior to turning your engine on. If you're not comfortable with using a key programmer, or if your car includes more advanced features such as remote head keys or smart keys, you can turn to a professional locksmith help. They'll have the tools and equipment necessary to cut blank keys, erase the old one from the computer in the car, and then program the new key to work correctly. This will save you time and money, and will keep your car's security system operating as it should. Plus, it's a lot safer than attempting to do it yourself! If you choose the incorrect key programming software or follow a guide that is not official, the information in your car's system can be corrupted, and the new key will not function. Remotes If your car keys aren't working it could be necessary to change the programming. It's a simple procedure for most modern vehicles that use keyfobs. Some models are more complex and require a specific programming device, which is typically available from the dealer or from auto locksmiths. Fortunately, many modern car manufacturers have made their key systems more secure to decrease the risk of theft from vehicles. The key system is designed in a way to stop hot-wiring, which is the act of using a key from a different vehicle to start your car's engine. To ensure that this method works, you will need at least two key fobs functioning for your vehicle. It is essential to have at minimum two spare keys available. The key fobs contain electronic chips that communicate via radio signals to the car's receiver. The computer examines the key's code with the database. If the codes match, the car will start. If not, the vehicle will be dead or refuses to start. Fortunately, the majority of electronic keys can be programmed and replaced by an expert locksmith or an auto dealer using the appropriate equipment. If you can locate a low-cost car key programer on the internet or in an auto parts store, the process should be fairly straightforward. You will need to follow a set of steps that includes inserting the ignition key, turning it on without starting the car, and then turning off the key. You'll need to repeat this procedure a specific number of times within a certain time frame for your vehicle to enter programming mode. This will be evident by the door locks turning or an audible chime. Certain modern vehicles are only programmable with a tool connected to the onboard diagnostic port or EEPROM programming. Unfortunately, the majority of these devices are very expensive, making them unaffordable for most car owners. The majority of car experts recommend consulting a professional auto dealership or locksmiths to program your keys.