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How to Program a Car Key Modern cars have more than just a key that can start the engine. They also have a remote control that can lock or open doors. These key fobs have to be programmed in order to work. Certain keys for cars can be preprogrammed by the owner themselves but it is best to speak with 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 Up until the turn of the 21st century the majority of cars had basic key systems. The keys themselves were just metal with grooves that were connected to the internal components of the ignition cylinder. As time passed and technology advanced and improved, automobile manufacturers began blending electronic and physical protocols to protect against theft. These key systems are called transponder keys or chip keys and are designed to make it harder for thieves to open the vehicle. The key chips that are in the keys have a unique serial number that sends a signal to the receiver inside of your car. The signal is compared to a code in the computer of the car when it is received. If the codes match, the car will start. If not, it will not start at all. This is one of the main reasons to keep a spare key for your vehicle, especially when you use a transponder-based system. If you're interested in learning how to program a key, you'll need some special equipment. You'll need an uncut key that matches your car model and make. They can be bought at the dealership or through locksmiths however, you must be sure that they are the right ones. If you use a key for another model, it will not work. Begin by putting the new key into the ignition and turning it “on”. It is necessary to leave the new key in this position for about 10 minutes and 30 seconds. After the time has passed you can take out your key and verify that the security indicator on your dashboard has gone off. If it did not then you'll need to repeat the procedure three times. Keep in mind that this method will only work with GM vehicles but it's not completely secure. If you're seeking a more secure and reliable method, you should seek out a professional locksmith or dealer to get your vehicle programmed with chips. They have the tools and equipment to connect to the onboard diagnostic port of your car and make the switch. Keyless Entry Systems Keyless entry systems allow access to properties without the need for a physical credential. Security is provided by sensors that are combined with an onboard computer. This lets you manage the system and monitor its activity from any location within the property, and it removes the requirement for locks or keys. The system can also identify stolen or lost cards and disable them. The newest models also allow remote management and configuration as well as are cloud-based. Most modern cars are equipped with the keyless entry system. To make this work it emits radio signals that are picked up by a specific key fob. These signals are then compared against the correct code in the car's computer and if everything is in order the car will be able to unlock. The car will not start when the signals aren't the same. If your key fob isn't already programmed, it is possible to follow a series of steps to program it. You'll first need to make sure that all doors excluding the driver's door are locked. You'll need to have the original key fob along with any other devices you wish to program. You can also visit the local auto parts store, as they may have the right tool to program your car. If these steps do not work, you'll need check the owner's manual, or an expert locksmith. Once you have the right tool, you can follow the instructions of the manufacturer to begin programming your key fob. This process is usually quick and easy. You may be instructed to insert the new key into the ignition when all doors are shut, and then press the button on the keyfob within the time frame. The car may respond by turning off the door locks or emitting an audible chime, which is an indication that the key was successfully programmed. Many locksmiths use special tools to get around the EEPROM security features that are built into the remote of your car or key fob. This is a risky technique and can corrupt the data in your car's computer. This is best left to a professional, who can lower the chance of data corruption and make sure that your keys are properly programmed. Transponder Keys Transponder keys, also referred to as chip keys, come with a microchip built into the head of the key. When the key is inserted into the barrel of the ignition lock, and turned into the ON position the antenna ring emits an electromagnetic energy blast through the transponder chip. The chip absorbs this energy and then transmits a radio frequency signal which contains an identification number. The code is matched to the unique digital serial numbers that are stored in the computer system of the car. This prevents unauthorised attempts to start the car, as only the correct key will be able to do so. It is believed that this technology will be more secure than traditional car keys because it makes it more difficult for thieves to “hot wire” a vehicle and get it started. It's not foolproof and thieves have discovered ways of tricking and defeating the system. Therefore, even vehicles with a transponder keys aren't protected from theft. You could be able to program a transponder key on your own with a key programmer compatible with your vehicle. The key programmer should include a step-by-step guide that will walk you through the process of programming your key. Follow the steps and switch on the security light in your dashboard prior to starting your engine. If you're uncomfortable using a key programmer or if your car includes more advanced features such as remote head keys or smart keys, you may turn to a professional locksmith for help. They will have the tools and equipment required to cut a blank key, delete the old one from the computer of the car, and then program the new key for it to work correctly. This will save you money and time and ensure that your car's safety system functioning as it should. Plus, it is much safer than doing it yourself. Using the wrong key programmers or following unofficial guides can corrupt the information in the vehicle's system and result in your new key not functioning. mobile key programmer If your car keys don't work, you might need to change the programming. This is an easy procedure for most modern cars that use key fobs. Certain models are more complicated and require a specific programming device, which is usually available from the dealer or through auto locksmiths. To reduce vehicle thefts, modern car manufacturers have increased the security of their key systems. The key system was designed to stop hot-wiring, which is the act of using a key from an other vehicle to start the engine of your vehicle. As a result, you'll require at minimum two working key fobs for your vehicle to make the process work. It's important to have two spare keys available. The key fobs have electronic chips that communicate via radio signals to the car's receiver. The computer in the car then compares the key's code to the one in its database. If the codes match, the car will start. If not, the car will not start or fail to start. Fortunately, the majority of electronic keys can be repaired and programmed by an experienced auto dealer or a locksmith with the right equipment. If you can locate a cheap car key programmer online or at an auto parts store, the process is fairly simple. You will need to follow a set-up that include inserting the ignition keys, turning it on without actually starting the vehicle, and then switching off the key. You'll need to repeat the steps a specified number of times in the timeframe you specify to put your vehicle into programming mode. This is indicated by the door locks cycling or a chime that sounds audible. Certain modern vehicles are only programmable with a tool connected to the onboard diagnosis port or EEPROM programming. Unfortunately, the majority of these tools are incredibly expensive, making them unaffordable for the majority of car owners. The majority of car experts recommend consulting a reputable auto dealership or locksmiths to program your keys.