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How to Program a Car Key Modern cars have more than a key that starts the engine. They also come with a remote control which can be used to lock or open doors. Key fobs have to be programmed to work properly. It is possible to pre-program certain car keys by the owner, however it is recommended to speak with a professional. This will protect against any possible damage to the computer system and also ensure that the new key works properly. How do you program a key? The majority of cars had basic keys systems until the turn of the 21st century. The keys themselves were just metal with grooves that corresponded to the internal parts of the ignition cylinder. As technology improved, more and more automobile makers began to mix physical and electronic protocols in order to prevent theft. These key systems are called transponder keys or chip keys, and they're designed to make it difficult for thieves to open the vehicle. The key chips come with unique serial codes that transmits a message to the receiver in your car. The signal is then compared to a code in the computer of the car when it is received. If the codes match the car will begin to start. If the codes aren't compatible, your car will not even start. This is one of the main reasons why you should always keep a spare key in your vehicle, particularly when you use a transponder-based system. You'll require specialized equipment to learn to program keys. You'll need a blank key that is compatible with your car model and make. You can buy them at an auto locksmith or a locksmith dealership, but it's essential to get the right ones. If you attempt to use a key that is from another brand, it won't work. Begin by putting the new key into the ignition and turning it to “on”. It is necessary to leave the new key in this position for around 10 minutes and 30 seconds. When the time has passed, you can remove the key and check whether the security light on your dashboard went out. If it didn't go out, you will need to do it three times. Keep in mind that this method will only work on GM vehicles however it isn't completely secure. If you're looking for a more secure and reliable option, you should consult a professional locksmith or dealer to get your vehicle programmed with chip. They have the tools and equipment needed to access your car's onboard diagnostics port and then make the change. Keyless Entry Systems Keyless entry systems permit access to property without the need for an actual credential. Security is achieved through the combination of sensors and an onboard computing device. It is possible to monitor and control the system from any place within the property. Keys and locks are not required. The system can also identify and block stolen or lost cards. The latest models also support remote management and configuration, and are cloud-based. Modern automobiles are equipped with keyless entry systems. To make this work, the vehicle emits radio signals that are picked up by a specific key fob. The signals are compared with the code that is stored in the computer of the car and if everything is in order, the car will unlock. If the signals do not match then the car won't start. There are a variety of steps you can take to program your new key fob if it's not programmed yet. First, you'll need to make sure that all doors, except the driver's door are locked. You'll also need the original key fob, along with any additional keys you'd like to program. You can also try the local auto parts store for the right programming tool for your vehicle. If none of these options work, you will have to consult your owner's manual or a professional locksmith. Once you've got the proper tool, you can follow the instructions of the manufacturer to begin programming your key fob. This procedure is usually quick and easy. For instance, you may be directed to insert your new key into the ignition with all doors shut and then press an appropriate button on the fob within a short time frame. The car may respond by turning off the doors or emitting an audible chime as an indication that the key was successfully programmed. Many locksmiths are equipped with special tools that let them bypass the built-in EEPROM security on the key fob of your car or remote. However it's an extremely risky option and could lead to the possibility of destroying the data on the computer in your car. It is best to let an expert handle this as they'll be able to reduce the chance of data corruption and also ensure that your keys are programmed correctly. Transponder Keys Transponder keys are also referred as chip keys. They have a microchip embedded in the head of the keys. The antenna ring transmits electromagnetic energy to the transponder when the key is placed into the ignition lock barrel. This energy is absorbed into the chip and it transmits the radio frequency signal, which includes an identification code that corresponds with the unique serial number in the car's computer system. This prevents unauthorized attempts to begin the car as only the right keys can be used. This technology is believed to be more secure than conventional car keys because it makes it difficult for thieves to “hot wire” an automobile and start it. But it's not foolproof, and thieves have discovered ways to deceive and defeat the system – so that even cars with transponder keys are not immune from theft. You may be able program a transponder key by yourself when you have an instrument that works with your vehicle. The key programmer should come with a step-by-step guide that will guide you through the process of programming your key. Follow the steps and turn on the security lights on your dashboard prior to beginning your engine. his explanation can ask an expert locksmith to assist you if you're not sure about using a key programmer or if you own a vehicle with more advanced features, such as remote head keys or intelligent keys. They'll have the appropriate tools and equipment to cut the blank key, remove your previous one from the computer in your car and then program the new one so that it will work properly. This will save you money and time and will keep your car's safety system operating as it should. It's also a lot more secure than doing it yourself! Using the wrong key programmers or following unofficial instructions could cause a problem with the information stored in your car's system, and result in the key not working. Remotes If your car keys aren't working, you might need to reprogram them. It's a simple procedure for the majority of modern cars that use keyfobs. Some models are more complex and require a special programming device, which is usually available at the dealer or from auto locksmiths. To prevent theft of vehicles Modern car manufacturers have improved the security of their key systems. The key system was designed to prevent hot-wiring (the method of using the key of another vehicle to start the engine) and other similar methods. This means that you'll need to have at least two functioning key fobs for your vehicle to ensure that the process works. This is just one of the reasons why it's best to have at least one spare key in your possession. The keys have electronic chips in them that communicate with the car's radio via radio signals. The car's computer then compares the code on the key to the one in its database. If the codes are the same the car will be able to start. If the codes do not match, the car will not start or remain dead. Most electronic keys can be programmed and replaced by a professional locksmith or dealer in the field with the appropriate equipment. If you're able to find a cheap car key programmer on the internet or at an auto parts store, the procedure is fairly simple. You'll have to follow a set of steps that include inserting the ignition key and turning it on, without starting the vehicle, then turning off the key. You'll need to repeat this a certain number of times within a specified 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 can only be programmed by means of a tool that's connected to the onboard diagnostics port or an EEPROM programing procedure. Unfortunately, the majority of these tools are incredibly expensive, making them unaffordable for the majority of car owners. Many experts in the field recommend consulting with a professional auto dealership or locksmith to program your keys.