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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 control that can lock or open doors. Key fobs need to be programmed to work. Some car keys can be programmed by the owner, however it is best to speak with a professional. This will avoid any damage to the computer system of the vehicle and ensure that the key is working correctly. How to program a key The majority of cars had basic keys systems up until the turn of the 21st century. The keys themselves were metal and had grooves that were connected to the internal components of the ignition cylinder. However, as time progressed and technology improved and improved, car manufacturers began blending physical and electronic protocols to prevent theft. Key systems like these, also known as transponder keys or chips keys are designed to make it harder for thieves to start a vehicle. The key chips in the keys have a unique serial number that sends an electronic signal to the receiver inside of 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 begin to start. If not, it will not start at all. This is one of the primary reasons you should keep a spare key on your car, especially in the case of transponder-based systems. If you're interested in learning how to program a key, you'll need some special equipment. You'll also require an uncut key for your specific model and make. They can be purchased from an auto dealership or from a locksmith however, you must be sure that they are the correct ones. If you use a key that is for another model, it will not function. Start the process by inserting the new key into the ignition and turning it “on”. You'll need to keep the new key in this position for around 10 minutes and 30 second. Once the time has expired you can take out your key and verify that the security indicator on your dashboard has gone out. If not then you'll need to do it again for a third time. Be aware that this method can only work on GM vehicles but it's not 100% secure. If you're looking for a safer and reliable option, you should consult an expert locksmith or dealer to get your vehicle programmed with chips. They have the tools and equipment needed to connect to the onboard diagnostics port of your vehicle and make the necessary changes. Keyless Entry Systems Keyless entry systems give access to properties without the need for the use of a physical ID. Security is achieved through sensors that are combined with an onboard computing device. 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 lost or stolen cards and deactivate them. The newest models also allow remote management and configuration, and are cloud-based. Most modern cars come equipped with a keyless entry system. This system works by emitting radio signals that are picked up using the keyfob. The signals are compared to the code stored in the computer of the car and, if all is well, the car will unlock. The car won't start if the signals are not identical. There are a variety of ways to program your new key fob, if it's not programmed yet. First, you'll need to make sure that all doors are locked, except for the driver's side. You'll also need the original key fob, as well as any extras you want to program. You can also try your local auto parts store for the right tool to program your vehicle. If these steps don't work, you'll need to go through the owner's manual or a professional locksmith. Once you've got the proper tool, you can follow the manufacturer's instructions to begin changing the program of your key fob. This process is usually quick and easy. For instance, you could be asked to insert your new key into the ignition with all doors closed and then press a button on the key fob within a brief time. The car could respond by turning off the door locks or emitting an audible sound 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 in the key fob of your car or remote. But it's an extremely risky procedure and could lead to the possibility of destroying the data stored on your car's computer. It's best to have an expert handle this as they'll be able to lower the risk of data corruption and ensure that your keys are correctly 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 then turned to the ON position the antenna ring transmits an electromagnetic energy blast through the transponder chip. This energy is absorbed by the chip and it transmits a radio frequency signal with an identification code that corresponds with the unique digital serial number of the car's computer system. This stops any attempts by anyone else to start the car, as only proper keys will be able to do so. This type of technology is thought to be more secure than a traditional car key, as it makes it more difficult for thieves to “hot wire” the vehicle and start it. It's not foolproof and thieves have found ways to evade detection and defeat the system. So even cars equipped with transponder key are not immune to theft. Depending on the brand and model of your vehicle You may be capable of programming a new transponder key by yourself with a key programer that is compatible with your particular car. The key programmer will come with an instruction manual that will guide you through the process of programming your key. Once you have the key and a key programmer, follow the steps carefully and make sure the security light on your dashboard is turned ON prior to turning the engine on. If you're not comfortable with the use of a key programmer or if your vehicle comes with more advanced features, such as remote head keys or smart keys, you can go to a professional locksmith for assistance. automotive key programming 'll have the appropriate tools and equipment to cut your blank key, erase your previous one from the computer in your car, and then program the new one so that it functions correctly. This will save you time and money and ensure that your car's safety system working just as it should. Plus, it's a lot more secure than doing it yourself! Making use of the wrong key programmers or following unofficial guidelines could alter the information stored in the car's system, resulting in the key not working. Remotes If your car keys don't work you may need to change the programming. It's a straightforward process for most modern cars which use keyfobs. However, certain models are more complex and need to be programmed with the aid of a special device that's usually available from a dealer or auto locksmith. Fortunately, most modern car manufacturers have improved their key systems to be more secure to decrease the risk of theft from vehicles. The key system was designed in a way to prevent hot-wiring, which is using a key from another vehicle to start the engine of your vehicle. Therefore, you'll need at minimum two working key fobs for your vehicle in order to ensure that the process works. It's essential to have two spare keys on hand. The key fobs have electronic chips that communicate with the car's receiver via radio signals. The computer compares the code of the key with the database. If the codes match the car will begin. If not, the vehicle will not start or fail to start. Most of these electronic key can be programmed and replaced by an expert locksmith or auto dealer using the right equipment. If you can locate an inexpensive car key programmer on the internet or at an auto parts store, the process is fairly simple. You'll need to follow a specific sequence of steps, which includes inserting the key into the ignition, turning it on, without starting the engine, and then turning the key off. You'll need to repeat this procedure a specific number of times within a specific time period to allow your vehicle to enter programming mode. This will be evident by the door locks turning or a chime that sounds audible. Some modern cars are only capable of being programmed using a tool that is connected to the onboard diagnostic port or EEPROM programming. Unfortunately, most of these tools are extremely expensive, which makes them unaffordable for the majority of car owners. Most car experts recommend consulting with an experienced auto dealer or locksmith to program your keys.