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How to Program a Car Key Modern cars have more than just a key which starts the engine. They also come with a remote that can lock or unlock doors. Key fobs need to be programmed in order to work. It is possible to program certain car keys by the owner, however it is best to consult an expert. This will ensure that there is no damage to the computer system of the car and ensure that the key is working properly. How do you program the key Before the turn of the 21st century, the majority of cars had basic key systems. The keys themselves were just metal and had grooves that matched the internal components of the ignition cylinder. As technology advanced, more and more car makers began to mix electronic and physical protocols to avoid theft. Key systems are also referred to as transponder keys or chips keys, are designed to make it difficult for thieves to start an automobile. The key chips come with unique serial codes that sends a message to the receiver in your car. When the signal is received, it compares it to a code stored in the car's computer. If the codes match, your car will start. If the codes don't match, your vehicle won't 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 looking to learn how to program keys, you'll require some special equipment. You'll need a blank key that is compatible with your car model and make. They can be purchased from an auto dealership or from a locksmith however, you must be sure they're the right ones. If you attempt to use a key from another model, then it will not work. To begin the process, insert the new key into the ignition and switch it to the “on” position. It is necessary to leave the new key in this position for around 10 minutes and 30 second. After the time has expired you can take off the key and see whether the security light on your dashboard went out. If it didn't then you'll need to do it again for a third time. This method is only compatible with GM vehicles and isn't completely secure. If you want a more secure and reliable option then you should visit an auto locksmith or dealer to have the vehicle programmed with an embedded chip. These professionals have the tools and equipment needed to access the onboard diagnostics port in your car and perform the change. Keyless Entry Systems Keyless entry systems provide property access without requiring an actual credential. Security is provided by a combination between sensors and an onboard computer. It is possible to control and monitor the system from any place within the property. Keys and locks are not required. The system can also detect stolen or lost cards and disable them. The latest models also support remote management and configuration as well as are cloud-based. The majority of modern cars are equipped with an entry system that is keyless. This system works by emitting radio signals that are picked up using a special keyfob. The signals are compared with the code that is stored in the computer of the car and if everything is in order, the car will unlock. If the signals don't match, the car will not start. There are a variety of steps you can follow to program your new key fob, if it isn't already programmed. First, you'll need to ensure that all doors are locked, with the exception of the driver's side. You'll need the original key fob and any extras that you want to program. You can also check your local auto parts shop to determine if they carry the right tool for your car. If these steps don't work, you'll need check the owner's manual, or a professional locksmith. Once you have the right tool, you can follow the manufacturer's instructions to begin reprogramming your key fob. The process is usually quick and easy. You may be instructed to put the new key in the ignition when all doors are shut, and then press the button on the keyfob within the time frame. The car could then respond by cycling the door locks or emitting a chime to signal that the key has been successfully programmed. A lot of locksmiths have tools that permit them to bypass the built-in EEPROM security in your car's key fob or remote. However this is a risky method and comes with the possibility of destroying the data stored on the computer in your car. It's best to have an expert handle this task as they'll be able to minimize the risk of data corruption and also ensure that your keys are correctly programmed. Transponder Keys Transponder keys, also referred to as chip keys, are equipped with a microchip embedded in the head of the key. When the key is placed in the barrel of the ignition lock, and then turned to ON, the antenna ring sends an electromagnetic energy blast through the transponder chip. This energy is absorbed into the chip and sends back a radio frequency signal with an identification code that corresponds with the unique digital serial number in the car's computer system. This stops unauthorized attempts to begin the car as only the correct keys will be able. The technology is believed to be more secure than a traditional car key because it makes it difficult for a thief “hot wire” the vehicle and start it. But it's not foolproof and thieves have discovered ways to evade and defeat the system – which means that even cars equipped that have transponder keys aren't immune from theft. You may be able program a transponder key yourself when you have a key programmer compatible with your car. The key programmer comes with a guide that walks you step-bystep through the process. Once you have the key and key programmer, follow the steps carefully and make sure the security light on your dashboard is turned ON prior to turning the engine ON. G28CarKeys can contact an expert locksmith to assist you if you are not confident using the key programmer or you have a car with more advanced features, like remote head keys or intelligent keys. They'll have the appropriate tools and equipment to cut the blank key, remove your old one from the computer in the car and then program the new one so that it will work correctly. This will save your time and money, and will help keep your car's security system functioning as it should. Additionally, it's much safer than doing it yourself. Utilizing the wrong key programming software or following unofficial instructions could alter the information stored in the car's system, and result in the new key not working. Remotes If your car keys aren't working, you might need to reprogram them. This is a straightforward process for many modern cars that utilize key fobs. However, some models are more complex and must be programmed with the help of a special device that's usually available from the auto locksmith or dealer. To reduce vehicle thefts Modern car manufacturers have improved the security of their key systems. The key system is designed in a way to avoid hot-wiring which is the practice of using a key from an other vehicle to start your car's engine. As a result, you'll require at least two functioning key fobs for your vehicle in order to be able to use the system. This is one of the reasons why it's best to have at least one spare key on hand. The keys have electronic chips that communicate with the car's receiver using radio signals. The car's computer then compares the key's code to the one in its database. If the codes match the car will begin. If not, the vehicle will be dead or refuses to start. Luckily, most of these electronic keys can be replaced and programmed by an experienced locksmith or an auto dealer using the appropriate equipment. If you can locate an inexpensive car key programmer on the internet or in an auto parts store, the procedure will be relatively simple. You'll need to follow a set of steps that includes inserting the ignition key, turning it on without starting the vehicle, and then switching off the key. You'll have repeat the steps a certain number of times in an exact time period to put your vehicle into programming mode. This is indicated by the door locks cycling or a chime that sounds audible. Some modern cars are only capable of being programmed using a tool that is connected to the onboard diagnosis port or EEPROM programming. The majority of these tools are costly and therefore unaffordable by most car owners. Therefore, the majority of auto experts suggest to consult an expert auto dealer or locksmith for key programing services.