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How to Program a Car Key Modern cars use more than a key to start the engine. They also include a remote to lock and unlock doors. These key fobs need to be programmed correctly. It is possible to program certain car keys by the owner, however it is best to consult an expert. This will prevent any damage to the computer system of the car and will ensure that the key is working properly. How do you program a key? The majority of cars had basic keys systems until the turn of 21st century. Keys themselves were metal and had grooves that were connected to the internal components of the ignition cylinder. As time passed and technology improved as it did, automobile manufacturers began to combine electronic and physical protocols to protect against theft. These key systems are known as transponder keys or chip keys, and are designed to make it harder for thieves to get into the vehicle. The key chips in the keys have a unique serial number that sends a 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 are compatible, then your car will begin to start. If not, it will not start at all. This is why it is important to keep an extra car key, particularly if your system is based on transponders. If you're interested in learning how to program keys, you'll need some specific equipment. You'll also need the blank key for your specific make and model. They can be purchased from an auto dealership or from a locksmith but you must make sure that they are the correct ones. If you try to use a key that is from an alternative model, it won't work. Start by inserting 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 is up you can take off your key and check if the security indicator on your dashboard has gone out. If it didn't then you'll need to repeat the process for the third time. Be aware that this method will only work on GM vehicles, and it's still not 100% secure. If you're looking for a secure and reliable solution then you should visit a locksmith or a dealer to get your car programmed with an embedded chip. These professionals have the tools and equipment needed to connect to the diagnostics port in your car and perform the switch. Keyless Entry Systems Keyless entry systems provide access to properties without the need for the use of a physical ID. They use sensors in combination with an onboard computer to offer security. It is possible to monitor and control the system from any place within the property. Keys and locks are not required. The system is also able to detect stolen or lost cards and deactivate them. The latest models also support remote management and configuration as well as are cloud-based. Modern cars come with keyless entry systems. To accomplish this the car emits radio signals which are picked up by a particular key fob. The signals are then compared with the correct code in the car's system, and if 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. There are a variety of ways to program your new key fob if it's not already programmed. You'll first need to make sure that all doors excluding the driver's door are locked. You'll also require the original key fob, and any other accessories you want to program. You could also check with your local auto parts shop for the right tool to program your car. If these steps do not work, you'll need to check the owner's manual, or an expert locksmith. Once you've got the proper tool, you can follow the manufacturer's instructions to begin programming your key fob. This process is usually quick and simple. You might be told to insert the new key in the ignition after closing all doors and then press the button on the keyfob within a specific time. The car may respond by cycling doors or emitting an audible chime as a sign that the key has been successfully programmed. Many locksmiths have special tools that allow them to bypass the built-in EEPROM security of the key fob of your car or remote. However, this is a risky method and has the potential of destroying the data on the computer in your car. It's best to have an expert handle this as they'll be able to lower the chance of data corruption and make sure that your keys are correctly programmed. Transponder Keys Transponder keys, sometimes referred to as chip keys, are equipped with an embedded microchip in the head of the key. When the key is placed in 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 the 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 stops any attempts by anyone else to start the car, as only proper keys will be able to do so. It is believed that this technology will be more secure than conventional car keys because it makes it harder for a thief to “hot wire” the vehicle and get it started. But reprogramming car keys 's not foolproof, and thieves have found ways to trick and thwart the system so that even vehicles with transponder keys are not safe from theft. Based on the make and model of your vehicle You may be in a position to program a brand new transponder key yourself by using a key programming device 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. Once you have your key and key programmer, follow the steps carefully and make sure the security light on your dashboard is turned on prior to turning your engine ON. If you're not comfortable with using a key programmer, or if your car comes with more advanced features, such as remote head keys or smart keys, you can go to a professional locksmith for assistance. They'll have the tools and equipment necessary to cut a blank key, delete the old one from the computer in the car, and program the new key for it to function properly. This will help you save money and time and will keep your car's safety system functioning just as it should. Plus, it is much safer than making 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 working. Remotes You may have to reprogramme your car keys if they're not working. This is a simple procedure for a lot of modern cars that utilize key fobs. However, certain models are more complex and must be programmed using an instrument that is available from the auto locksmith or dealer. To decrease the risk of theft from vehicles Modern car manufacturers have increased the security of their key systems. The key system was designed in a way to prevent hot-wiring, which is the act of using a key from another vehicle to start your car's engine. To be able to make this process work you'll require at minimum two key fobs working for your vehicle. This is one of the reasons why it's recommended to have at least one spare key available. The key fobs have electronic chips inside them which communicate with the car's radio via radio signals. The computer checks the code of the key with the database. If the codes match, the car will start. If the codes do not match then the car will not start or will remain dead. Most electronic keys can be programmed and replaced by an experienced locksmith or dealer in the field with the right equipment. The procedure should be fairly easy if you locate a key programmer that is cheap on the internet or at an auto parts store. You'll have to follow a set of instructions that include inserting the ignition key, turning it on, without starting the vehicle, then shutting off the key. You'll need to repeat this a certain number of times within a specific time period for your vehicle to enter programming mode. The door locks will cycle or a chime will sound. Some modern vehicles are capable of programming using a device connected to the onboard diagnostic port or EEPROM programming. Most of these tools are costly and therefore unaffordable by the majority of car owners. Most car experts recommend consulting with a professional auto dealership or locksmith to program your keys.