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How to Program a Car Key Modern cars have more than just a key which will start the engine. They also have a remote control that can lock or open doors. Key fobs have to be programmed to work properly. Some keys for cars can be programmed by the owner himself, but it is recommended to consult an expert. This will help to avoid any damage to the car's computer system, and also ensure that the new key is working properly. How do you program a key Up until the turn of the 21st century the majority of cars utilized basic key systems. The keys themselves were just metal and featured grooves that matched the internal components of the ignition cylinder. However, as time progressed and technology improved as it did, automobile manufacturers began to combine 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 start the vehicle. The key chips contain an unique serial number that sends a message to the receiver in your car. When the signal is received it compares it with the code that is stored in the car's computer. If the codes are similar then your car will start. If the codes don't match, then your car will not even start. This is one of the main reasons why you should always keep a spare key on your car, especially if you have an electronic transponder. You'll need special equipment to be able to program keys. You'll need to buy an uncut key that matches the model and make of your car. You can purchase them from a locksmith or a car dealership, but it's essential to buy the right one. If you use a key for another model, it won't work. To begin the process, simply insert the new key into the ignition and switch it to the “on” position. You'll need to keep the 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 out. If not then you'll need to do it again for another time. This method is only compatible with GM vehicles and it's not foolproof. If you want a more reliable and secure solution go to a locksmith or a dealer to get your car programmed with an embedded chip. These professionals are equipped with the tools and equipment required to connect to the onboard diagnostic port on your car and perform the necessary changes. Keyless Entry Systems Keyless entry systems allow property access without the requirement for a physical ID. They utilize sensors in conjunction with an onboard computer for security. It is possible to monitor and control the system from any place within the property. Keys and locks are not required. The system can also identify and disable stolen or lost cards. Additionally, the most recent models are cloud-based and allow for remote management and configuration. The majority of modern cars are equipped with an entry system that is keyless. To make this work it emits radio signals that are picked up by a particular key fob. The signals are compared to the code stored in the computer of the car and, if all is well the car will start to unlock. The car won't start if the signals are not the same. There are a variety of steps you can take to program your new key fob if it isn't already programmed. You'll first need to make sure that all doors excluding the driver's door are locked. You'll need the original key fob as well as any additional devices you want to program. You may also visit your local auto parts store to see if they've got the appropriate tool for your car. If these steps don't work, you will have to consult your owner's manual, or an expert locksmith. Once car key programming got the proper tool, you can follow the instructions of the manufacturer to begin changing the program of your key fob. This process is usually quick and easy. You might be told to insert the new key into the ignition while all doors are closed and then press the button on the keyfob within a specific time. The car might then respond by turning off the door locks or generating a chime to indicate that the key has been successfully programmed. A lot of locksmiths have tools that permit them to bypass the built-in EEPROM security in the key fob of your car or remote. However, this is an extremely risky option and comes with the possibility of destroying the data on your car's computer. This should be left to a professional, who can lower the chance of data corruption and ensure that your keys are correctly programmed. Transponder Keys Transponder keys are also referred to as chip keys. They are equipped with a microchip embedded inside the head of the keys. The antenna ring transmits electromagnetic energy to the transponder when the key is placed into the ignition lock barrel. This energy is absorbed by the chip and it transmits a radio frequency signal with an identification code that corresponds with the unique serial number of the car's computer system. This prevents unauthorized attempts to start the car since only the right key can do so. The technology is believed to be more secure than a traditional car key because it makes it more difficult for a thief “hot wire” the vehicle and start it. It's not foolproof and thieves have found ways to trick and defeat the system. Therefore, even vehicles with a transponder key are not protected from theft. Depending on the brand and model of your car, you may be in a position to program a brand new transponder by yourself using a key programmer that's compatible with your particular car. The key programmer will come with a step-by-step guide that will guide you through the procedure of programming your key. Once you have the key and a key programmer, follow the instructions carefully and make sure the security light on your dashboard is turned ON prior to turning the engine ON. You can seek out an expert locksmith to assist you if you're not sure about using a key programmer or if you have a car with more advanced features, such as remote head keys or intelligent keys. They will have the tools and equipment required to cut blank keys, erase the old one from the computer of the car, and then program the new key to work correctly. This will save you money and time, and keep your car's safety system working just as it should. Plus, it's a lot more secure than doing it yourself! Utilizing the wrong key programming software or following unofficial guidelines could corrupt the information in the car's system, resulting in the new key not working. Remotes You may have to reprogramme your car keys if they're not working. This is a straightforward procedure for most modern cars that utilize key fobs. However, some models are more complicated and must be programmed with the aid of an additional device that's typically available from the auto locksmith or dealer. To decrease the risk of theft from vehicles Modern car manufacturers have enhanced the security of their key systems. The key system was designed in a way to avoid hot-wiring which is using a key from a different vehicle to start your car's engine. To make this process work you'll require at least two key fobs working for your vehicle. This is just one of the reasons why it's a good idea to always have at least one spare key available. The keys have electronic chips inside them that communicate with the car's receiver using radio signals. The car's computer then compares this key's code with the one in its database. If the codes are the same the car will be able to start. If the codes do not match then the car will not start or remain dead. Luckily, most of these electronic keys can be programmed and replaced by an expert auto dealer or a locksmith using the appropriate equipment. If you can locate an inexpensive car key programmer on the internet or in an auto parts store, the procedure is fairly simple. You will need to follow a set-up that includes inserting the ignition keys, turning it on without starting the vehicle, and then shutting off the key. You'll have to repeat this a certain number of times within a specific time period to allow your vehicle to enter programming mode. The door locks will be triggered or a chime will sound. Some modern cars are only programmable with a tool connected to the onboard diagnosis port or EEPROM programming. Unfortunately, the majority of these tools are extremely expensive, and therefore unattainable for the majority of car owners. Therefore, the majority of auto experts suggest that you speak with a professional locksmith or dealer for key programming services.