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How to Program a Car Key Modern cars have more than a key that will start the engine. They also have a remote control that can lock or open doors. These key fobs need to be programmed correctly. It is possible to pre-program certain car keys by the owner, however it is recommended to speak with a professional. This will prevent any possible damage to the car's computer system, and also ensure that the new key functions correctly. How do you program the key Most cars had basic key systems until the turn of 21st century. Keys themselves were metal and had grooves that were connected 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. These key systems, also known as transponder keys or chips keys are designed to make it more difficult for thieves to steal the vehicle. The key chips that are in the keys have a unique serial number that transmits an electronic signal to the receiver inside of your car. The signal is then compared to a code in the car's computer when it is received. If the codes match then your car will start. If not, it will not start at all. This is one of the main reasons you should keep a spare key for your vehicle, especially if you have transponder-based systems. If you want to learn how to program keys, you'll require some special equipment. You'll also need the blank key that matches your specific make and model. They can be purchased from the dealership or through a locksmith however, you must be sure they're the right ones. If you use a key for another model, it won't work. To begin the process, simply 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. After the time has passed, you can remove your key and see if the security indicator on your dashboard has gone out. If it didn't then you'll need repeat the process another time. car keys cut and programmed is only compatible with GM vehicles and isn't completely secure. If you're seeking a more secure and reliable option, you should consult a professional locksmith or dealer to have your car programmed with chips. These professionals are equipped with the tools and equipment needed to connect to the onboard diagnostic port on your car and make the change. Keyless Entry Systems Keyless entry systems grant access to properties without the need for a physical credential. Security is offered by sensors that are combined with an onboard computer. It is possible to control and monitor the system from anywhere within the property. Keys and locks are not required. The system is also able to detect stolen or lost cards and then deactivate them. The latest models also support remote management and configuration and are cloud-based. Most modern cars come equipped with an entry system that is keyless. The system works by sending radio signals that are detected by the keyfob. The signals are then compared to the correct code stored in the car's computer, and if everything is in order the car will start to unlock. If the signals do not match, the car will not start. If your key fob has not been already programmed, you can follow a series of steps to program it. First, you'll need to make sure that all doors, except the driver's door are locked. Also, you'll need the original key fob as well as any extras you'd like to program. You can also check your local auto parts shop to see if they've got the right tool for your vehicle. If these steps don't work, you'll have to go through the owner's manual or an expert locksmith. Once you have the proper tool, you can begin the process of reprogramming your key fob by following the instructions provided by the manufacturer. This process is usually quick and simple. For instance, you could be instructed to insert your new key into the ignition while keeping all doors shut and then press the button on the key fob within a short time. The car could respond by turning off the doors or emitting an audible chime as an indication that the key was successfully programmed. Many locksmiths employ special tools to bypass the EEPROM security built into the remote of your car or key fob. However, this is an extremely risky procedure and comes with the possibility of destroying the data on your car's computer. This is best left to a professional, who can reduce the risk of data corrupting and ensure that your keys are correctly programmed. Transponder Keys Transponder keys, also known as chip keys, have 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 ignition lock barrel. The chip absorbs this energy, and then transmits a radiofrequency signal that includes an identification code. The code is matched to the unique digital serial numbers of the computer of the car. This will prevent any unauthorized attempts to start the car since only the right key will be able to do so. The technology is believed to be more secure than conventional car keys because it makes it harder for a thief to “hot wire” a vehicle and start it. It's not foolproof and thieves have discovered ways of tricking and defeating the system. So even cars equipped with transponder key are not protected from theft. You might be able to program a transponder key yourself if you have an appropriate key programmer for your vehicle. The key programmer comes with a manual that will take you step-by-step through the process. Once you have the key and key programmer, follow the instructions carefully and ensure that the security light on your dashboard is on prior to turning your engine ON. 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 for assistance. They will have the tools and equipment required to cut an uncut key, erase the old one from the computer of the car, and then program the new key to function correctly. This will save you time and money and will ensure that your car's security system functioning exactly as it should. It is also safer than doing it yourself. Making use of the wrong key programmers or following unofficial guides can cause a problem with the information stored in your car's system, and result in your new key not functioning. Remotes It is possible to change the programming of your car keys if they're not working. This is a simple process for many modern vehicles that have key fobs. However, some models are more complex and need to be programmed with the aid of an instrument that is available from a dealer or auto locksmith. Fortunately, most modern car manufacturers have improved their key systems to be more secure in order to prevent theft of vehicles. The key system was designed in a way to prevent hot-wiring, which is using a key from an other vehicle to start the engine of your car. Therefore, you'll require at least two working key fobs for your vehicle to make the process work. This is one of the main reasons why it's recommended to have at least one spare key in your possession. The key fobs have electronic chips that communicate via radio signals to the car's receiver. The car's computer then compares this key's code with the one in its database. If the codes are the same, the car will start. If the codes do not match then the car will not start or remain dead. Fortunately, the majority of electronic keys can be programmed and replaced by a professional auto dealer or a locksmith using the appropriate 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 will need to follow a set of instructions that include inserting the ignition key, turning it on without starting the car, and then switching off the key. You will need repeat the steps a certain number of times in an exact time period to get your vehicle into programming mode. The door locks will turn on and off or chime. Certain modern vehicles can only be programmed with the aid of a tool that's connected to the onboard diagnostics port or an EEPROM programming procedure. Unfortunately, most of these tools are extremely expensive, which makes them unaffordable for most car owners. Therefore, the majority of car experts recommend to consult a professional locksmith or auto dealer to program your keys.