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How to Program a Car Key Modern cars have more than just a single key to start the engine. They also have a remote that can lock and unlock doors. Key fobs must be programmed correctly. It is possible to pre-program certain keys for cars by the owner, however it is best to consult a professional. This will help avoid any damage to the computer system, and also ensure that the new key works properly. How do you program the key Most cars had basic key systems up until the turn of 21st century. Keys themselves were metal and had grooves that corresponded to the internal parts of the ignition cylinder. As time went on and technology improved, more and more automobile manufacturers began blending physical and electronic protocols to protect against theft. These key systems are called transponder keys or chip keys and they're designed to make it more difficult for thieves to get into the vehicle. The key chips have unique serial codes which transmits a signal to the receiver inside your car. The signal is compared with an identifier in the computer of the car when it is received. If the codes are compatible, then your car will begin to start. If the codes don't match, then your car will not even start. This is one of the primary reasons to keep a spare key for your car, especially if you have a transponder-based system. If automotive locksmith key programming looking to learn how to program keys, you'll need certain equipment. You'll need to buy a blank key that is compatible with the car's model and make. You can purchase them from a locksmith or a car dealership, but it's important to get the right ones. If you try to use a key from an alternative model, it won't work. Start the process by inserting the new key in the ignition and turning it to “on”. You'll need to keep the new key in this position for approximately 10 minutes and 30 second. Once the time is up you can take out the key and check if the security light on your dashboard was gone. If it didn't go out, you will need to repeat the procedure for the third time. Be aware that this method can only work with GM vehicles however it isn't completely secure. If you're looking for a reliable and secure solution go to an auto locksmith or dealer to have the car programmed using an embedded chip. These professionals have the necessary tools and equipment to access the onboard diagnostic port of your car and make the switch. Keyless Entry Systems Keyless entry systems permit access to properties without the requirement for a physical credential. automotive locksmith key programming use a combination of sensors and an onboard computer for security. This lets you control the system and monitor its activity from anywhere on your property, and it eliminates the need for locks or keys. The system is also able to detect and block stolen or lost cards. The latest models also support remote management and configuration as well as are cloud-based. Modern automobiles are equipped with keyless entry systems. To make this work the car emits radio signals that are picked up by a particular key fob. The signals are then compared with the correct code in the car's computer, and if everything is in order, the car will unlock. The car will not start if the signals are not the same. There are several steps you can take to program your new key fob, if it's not programmed yet. You'll first need to be sure that all doors, except the driver's door are locked. You'll also require the original key fob, and any other accessories you'd like to program. You can also visit your local auto parts shop, as they may have the right tool to program your car. If these steps don't work, you will have to consult the owner's manual or a professional locksmith. Once you've got the proper tool, you can follow the manufacturer's instructions to begin changing the program of your key fob. This procedure is usually quick and easy. For example, you might be instructed to insert your new key into the ignition while keeping all doors closed and then press a button on the key fob within a short time. The car might respond by reversing the door locks or emitting an audible chime as a sign that the key was successfully programmed. Many locksmiths are equipped with special tools that let them bypass the built-in EEPROM security of your car's key fob or remote. However, this is an extremely risky procedure and could lead to the possibility of destroying the data on your car's computer. This is best left to a professional, who can minimize the risk of data corrupting and ensure that your keys are programmed correctly. Transponder Keys Transponder keys, also referred to as chip keys, come with an embedded microchip in the head of the key. The antenna ring transmits electromagnetic energy to the transponder whenever the key is inserted in the barrel of the ignition lock. The chip absorbs the energy and then transmits a radiofrequency signal that contains an identification code. This code matches the unique digital serial numbers of the computer system of the car. This is to prevent unauthorised attempts to start the car as only the correct keys will be able. This technology is believed to be more secure than traditional keys for cars because it makes it more difficult for thieves to “hot wire” an automobile and start it. It's not foolproof and thieves have found ways to trick and defeat the system. So even cars equipped with transponder key are not safe from theft. Depending on can a locksmith reprogram a car computer and model of your car You may be capable of programming a new transponder key by yourself with a key programer that is compatible with your particular car. The key programmer will come with a guide that will guide you step-by-step through the process. Follow the directions and switch on the security lights on your dashboard prior to starting your engine. If you're uncomfortable the use of a key programmer or if your vehicle has more advanced features like remote head keys or smart keys, you can turn to a professional locksmith for assistance. They'll have the right tools and equipment to cut your blank key, delete your old one from your computer in the car and then program the new one so that it will work correctly. This will save you time and money, and will keep your car's security system operating exactly as it should. Additionally, it's much safer than doing it yourself. Making use of the wrong key programmers or following unofficial guidelines could cause a problem with the information stored in your car's system, and result in the new key not functioning. Remotes If your car keys don't work, you might need to change the programming. This is an easy procedure for most modern cars that utilize key fobs. Some models are more complex and require a specific programming device, which is typically available at the dealer or from auto locksmiths. To reduce vehicle thefts, modern car manufacturers have improved the security of their key systems. The key system was designed to avoid hot-wiring (the method of using the key of another vehicle to start the engine) and other similar methods. Therefore, you'll need at minimum two working key fobs for your vehicle in order to make the process work. This is one of the reasons why it's best to have at least one spare key in your possession. The key fobs contain electronic chips that communicate using radio signals with the car's receiver. The computer examines the code of the key with the database. If the codes are the same the car will begin. If not, the car will be dead or refuses to start. Luckily, most of these electronic keys can be programmed and replaced by an expert locksmith or auto dealer equipped with the proper equipment. The process is fairly simple if you can find a low-cost key programmer on the internet or in an auto parts store. You'll have to follow a set of steps that include inserting the ignition key, turning it on without starting the vehicle, then shutting off the key. You will need to repeat the steps a specified number of times within the timeframe you specify to put your vehicle in programming mode. The door locks will cycle or chime. Some modern vehicles are capable of being programmed using a tool that is connected to the onboard diagnostic port or EEPROM programming. Most of these tools are costly and therefore unaffordable by the majority of car owners. Therefore, the majority of experts in the field recommend that you speak with an expert locksmith or dealer for key programing services.