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How to Program a Car Key Modern cars use more than just a single key to start the engine. They also have a remote that can lock and unlock doors. Key fobs need to be programmed in order to work. It is possible to pre-program certain keys for cars by the owner, however it is recommended to speak with an expert. This will help prevent any possible damage to the car's computer system and ensure that the new key works properly. How do you program a key The majority of cars had basic keys systems prior to the turn of the 21st century. The keys themselves were metal with grooves that were connected to the internal parts of the ignition cylinder. As technology improved, more and more car makers began to mix electronic and physical protocols to avoid theft. These key systems are called transponder keys or chip keys and are designed to make it harder for thieves to get into the vehicle. The key chips that are in the keys have a specific serial number that sends an electronic signal to the receiver in your car. When the signal is received it is compared to an existing code in the car's computer. If the codes are identical the car will begin to start. If the codes aren't compatible, your car will not even start. This is the reason you should keep a spare car key, particularly if your system is transponder-based. If you want to learn how to program keys, you'll require some special equipment. You'll also require a blank key that matches your specific make and model. These can be purchased at a dealership or by locksmiths but you must make sure they're the correct ones. If you use a key for another model, it will not function. 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 around 10 minutes and 30 seconds. Once the time has expired you can take off your key and see if the security indicator on your dashboard has gone off. If it didn't then you'll have to repeat the process for the third time. Keep in mind that this method can only work with GM vehicles, and it's still not 100% secure. If you're seeking a more secure and reliable method, you should seek out a professional locksmith or the dealer to have your car programmed with chip. These professionals are equipped with the tools and equipment required to connect to the diagnostics port of your car and make the change. Keyless Entry Systems Keyless entry systems grant access to properties without the requirement of a physical credential. Security is offered by the combination of sensors and an onboard computing device. It is possible to manage and monitor the system from anywhere within the property. Keys and locks are not required. The system can also identify lost or stolen cards and disable them. In car key programming , the newest models are cloud-based and permit remote management and configuration. Modern cars are equipped with keyless entry systems. The system works by sending radio signals which are picked up using a special keyfob. The signals are then compared with the correct code stored in the car's computer, and when everything is in order the car will be able to unlock. The car will not start in the event that the signals are not the same. If your key fob isn't already programmed, it is possible to follow a few steps to programme it. You'll first need to be sure that all doors, except the driver's door are locked. You'll need to have the original key fob and any additional devices you want to program. You can also try the local auto parts store because they might have the right programming tool for your car. If these steps don't work, you'll need consult the owner's manual or a professional locksmith. Once you have the proper tool You can begin the changing the programming of your key fob by following the instructions provided by the manufacturer. This process is often relatively simple and quick. For instance, you could be directed to insert your new key into the ignition while keeping all doors closed and then press a button on the key fob within a brief time period. The car could then respond by cycling the door locks or generating a chime to signal that the key has been successfully programmed. Many locksmiths have special tools that let them bypass the built-in EEPROM security on the car's key fob or remote. This is a dangerous method and could cause data corruption on your car's computer. This is best left to a professional who can reduce the risk of data corruption and ensure that your keys are properly programmed. Transponder Keys Transponder keys are also referred to as chip keys. They have an embedded microchip in the head of the keys. The antenna ring transmits electromagnetic energy to the transponder whenever the key is placed in the barrel of the ignition lock. car key programming 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 computer of the car. This is to prevent unauthorised attempts to start the car, as only right keys can be used. The technology is believed to be more secure than a traditional car key since it makes it more difficult for a criminal to “hot wire” the vehicle to start it. But it's not foolproof and thieves have found ways to trick and defy the system – which means that even cars equipped with transponder keys are not protected from theft. Depending on the make and model of your vehicle You may be capable of programming a new transponder key yourself using a key programmer that's compatible with your particular car. The key programmer will come with a guide that will guide you step-by-step through the procedure. Follow the directions and turn on the security light in your dashboard before you start your engine. You can seek out an expert locksmith to assist you if you're not confident using the key programmer or you own a vehicle with more advanced features, such as remote head keys or intelligent keys. They'll have the tools and equipment necessary to cut a blank key, delete the old key from the computer of the car, and then program the new key for it to function correctly. This will save you time and money and will help keep your car's security system working as it should. It is also safer than doing it yourself. Utilizing the wrong key programming software or following unofficial guides can corrupt the information in the car's system, resulting in the new key not working. Remotes If your car keys don't work, you might need to reprogram them. It's a simple procedure for most modern cars which use keyfobs. Some models are more intricate and require a special programming device, which is typically available at the dealer or from auto locksmiths. To reduce vehicle thefts Modern car manufacturers have enhanced the security of their key systems. The key system is designed to stop hot-wiring, which is the practice of using a key from an other vehicle to start the engine of your car. To be able to make this process work, you will require at minimum two key fobs working for your vehicle. This is just one of the reasons why it's best to have at least one spare key available. The key fobs contain electronic chips that communicate using radio signals to the car's receiver. The car's computer then compares this code on the key to the one stored in its database. If the codes match the car starts. If the codes do not match the car won't start or remain dead. Luckily, most of these electronic keys can be programmed and replaced by an experienced locksmith or auto dealer equipped with the proper equipment. If you can find a low-cost car key programer on the internet or at an auto parts store, the process will be relatively simple. You will need to follow a set of instructions that includes inserting the ignition key and turning it on, without starting the vehicle, then turning off the key. You will need repeat the steps a specific number of times in an exact time period to put your vehicle into programming mode. The door locks will turn on and off or a chime will sound. Certain modern vehicles are only capable of programming using a device connected to the onboard diagnostic port or EEPROM programming. Unfortunately, most of these tools are extremely expensive, which makes them unaffordable for most car owners. The majority of car experts recommend consulting with a reputable auto dealership or locksmith to program your keys.