How to Program a Car Key Modern cars come with more than a key that will start the engine. They also have a remote control that can lock or unlock doors. Key fobs need to be programmed in order to work. Certain keys for cars can be preprogrammed by the owner themselves but it is recommended to consult a professional. This will ensure that there is no damage to the computer system of the car and ensure that the key works correctly. How to program a Key Prior to the beginning of the 21st century, most cars used basic key systems. Keys were made from metal and had grooves to match the internal components of the ignition cylinder. As technology advanced, more and more automobile makers began to combine electronic and physical protocols to stop theft. These key systems are called transponder keys or chip keys, and are designed to make it more difficult for thieves to open the vehicle. The key chips come with unique serial codes that sends a message to the receiver inside your car. When the signal is received, it compares it to an existing code in the car's computer. If the codes are identical, your car will begin to start. If the codes aren't compatible, your vehicle won't start at all. This is one of the main reasons you should keep a spare key for your vehicle, particularly in the case of transponder-based systems. If you're interested in learning how to program a key, you'll need certain equipment. You'll also need an uncut key for your particular make and model. You can purchase them from an auto locksmith or a locksmith dealership, but it's crucial to get the right ones. If you use a key that is for another model, it will not work. To begin the process, insert the new key into the ignition and turn it to the "on" position. You'll need to keep the key in this position for approximately 10 minutes and 30 seconds. Once the time has expired, you can remove your key and check if the security indicator on your dashboard has gone off. If it didn't, you'll need repeat the process the third time. This method is only compatible with GM vehicles and it's not completely secure. If you're looking for a safer and reliable method, you should visit a professional locksmith or dealer to get your vehicle programmed with chip. They have the tools and equipment needed to connect to the diagnostics port in your car and make the switch. Keyless Entry Systems Keyless entry systems permit access to property without the requirement for a physical credential. They make use of sensors in conjunction with an onboard computer for security. It is possible to monitor and control the system from anywhere within the property. Keys and locks are not required. The system can also detect and block stolen or lost cards. The latest models also support remote management and configuration, and are cloud-based. Modern cars come with keyless entry systems. This system works by emitting radio signals which are detected by an specialized keyfob. The signals are then compared to the code stored in the car's computer and if everything is well the car will start to unlock. The car will not start if the signals are not the same. If your key fob isn't already programmed, you may follow several steps to program it. 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 want to program. You can also check your local auto parts store to see if they've got the right tool for your vehicle. If these steps don't work, you'll have to 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 manufacturer's instructions. The process is usually simple and quick. For instance, you may be asked to insert your new key into the ignition while keeping all doors shut and then press the button on the key fob within a brief time. The car might respond by reversing the doors or emitting an audible chime, which is a sign that the key was successfully programmed. Many locksmiths are equipped with special tools that allow them to bypass the built-in EEPROM security of the car's key fob or remote. But this is an extremely risky option and has the potential of destroying the data on the computer in your car. 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, sometimes referred to as chip keys, come with an embedded microchip in the head of the key. The antenna ring transmits electromagnetic energy to the transponder whenever the key is put in the barrel of the ignition lock. The chip absorbs this energy, and then transmits a radio frequency signal that includes an identification code. The code is matched to the unique serial numbers in the computer system of the car. This prevents any attempts by anyone else to start the car as only the correct keys will be able. This technology is thought to be more secure than a conventional car key, as it makes it difficult for thieves to "hot wire" the vehicle to start it. However, it's not foolproof and thieves have discovered ways to evade and thwart the system which means that even cars equipped that have transponder keys aren't immune from theft. Depending on the brand and model of your vehicle, you may be able to program a new transponder key by yourself using a key programmer that's compatible with the car you own. The key programmer comes with a guide that walks you step-bystep through the procedure. Follow the steps and turn on the security light on your dashboard before you start your engine. If you're uncomfortable the use of 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 help. They will have the tools and equipment necessary to cut blank keys, erase the old one from the computer in the car, and program the new key for it to function properly. This will save you time and money, and will help keep your car's security system functioning as it should. It is also safer than making it yourself. Using the wrong key programmers or following unofficial guidelines could corrupt the information in the car's system, resulting in your new key not functioning. Remotes If your car keys don't work, you might need to reprogram them. It's a simple procedure for most modern cars that use keyfobs. Some models are more complex and require a special programming device, which is normally available from the dealer or through auto locksmiths. To prevent theft of vehicles, modern car manufacturers have improved the security of their key systems. The key system is designed to prevent hot-wiring (the practice of using a key from another vehicle to start the engine) and other similar methods. To ensure that this method works, you will require at least 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 in your possession. The key fobs contain electronic chips that communicate via radio signals with the car's receiver. The computer examines the code of the key with the database. If the codes are the same, the car will start. If the codes don't match then the car will not start or will remain dead. https://www.openlearning.com/u/mcfarlandkjeldsen-sjd1fk/blog/HowToSurviveYourBossOnKeyFobProgrammingNearMe of these electronic keys can be programmed and replaced by a professional locksmith or auto dealer using the appropriate equipment. If you're able to find a cheap car key programmer online or at an auto parts store, the procedure should be fairly straightforward. You'll have to follow a set-up which include inserting the ignition keys, turning it on, without starting the vehicle, then switching off the key. You'll need to repeat this a certain number of times within a certain time period to allow your vehicle to enter programming mode. The door locks will cycle or chime. Certain modern vehicles are only capable of programming using a device connected to the onboard diagnosis port or EEPROM programming. The majority of these tools are very expensive and therefore unaffordable by most car owners. So, many experts in the field recommend to consult an experienced locksmith or auto dealer to program your keys.