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How to Program a Car Key Modern cars come with more than just a key which can start the engine They also come with a remote control which can be used to lock or open doors Key fobs need to be programmed in order to work Some keys for cars can be programmed by the owner themselves but it is recommended to consult an expert This will help to avoid any damage to the cars computer system and also ensure that the new key is working correctly How do you program a key Up until the turn of the 21st century most cars used basic key systems The keys were made of metal and incorporated grooves to match the internal components in the ignition cylinder As technology improved more and more automobile makers began to combine physical and electronic protocols in order to prevent theft These key systems are known as transponder keys or chip keys and are designed to make it more difficult for thieves to start the vehicle The key chips come with an unique serial number that transmits a message to the receiver in your car When the signal is received it is compared to an existing code in the cars computer If the codes are compatible then your car will start If not it wont start at all This is one of the main reasons you should keep a spare key in your vehicle particularly in the case of transponderbased systems Youll require special equipment to learn how to program keys Youll need a blank key that matches your car model and make You can purchase them from the locksmith shop or at a car dealership but its important to purchase the correct keys If you attempt to use a key from another brand it wont work Start by inserting the new key in the ignition and turning it on Youll need to leave the key in this position for about 10 minutes and 30 seconds When the time has passed you can remove the key and check whether the security light on your dashboard was gone If not youll need to repeat the process for another time Remember that this method can only work on GM vehicles and its still not 100 secure If youre looking for a secure and reliable solution go to an auto locksmith or dealer to have your vehicle programmed with an embedded chip These professionals have the tools and equipment required to access the onboard diagnostic port on your car and make the necessary changes Keyless Entry Systems Keyless entry systems grant access to property without the need for a physical credential They utilize sensors in combination with an onboard computer to offer security It is possible to monitor and control the system from anywhere within the property Keys and locks are not required The system is also able to detect lost or stolen cards and deactivate them The latest models also support remote management and configuration and are cloudbased Modern cars come with keyless entry systems To enable this feature the vehicle emits radio signals that are picked up by a specific key fob The signals are compared to the code stored in the cars computer and if all is well the car will start to unlock The car wont start in the event that the signals are not the same If your key fob isnt already programmed you can follow several steps to program it Youll first need to make sure that all doors excluding the drivers door are locked Youll also require the original key fob along with any additional keys you want to program You can also check your local auto parts shop to see if they have the right tool for your vehicle If these steps do not work youll need check the owners manual or an expert locksmith Once you have the correct tool You can begin the process of reprogramming your key fob following the instructions provided by the manufacturer This process is usually quick and simple For reprogram car key you could be directed to insert your new key into the ignition with all doors closed and then press a button on the key fob within a short time period The car could then respond by adjusting the door locks or emitting a chime to indicate that the key has been successfully programmed Many locksmiths use special tools to bypass the EEPROM security features that are built into the remote of your car or key fob This is a risky technique and can cause corruption of the data stored in the cars computer Its best to have an expert handle this task as they will be able to minimize the risk of data corruption and make sure that your keys are programmed correctly Transponder Keys Transponder keys also known as chip keys come with a microchip embedded in 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 emits an electromagnetic energy blast through the transponder chip automotive key programming near me absorbs this energy and then sends a radio frequency signal that includes an identification code This code matches the unique digital serial numbers of the computer of the car This is to prevent any attempts by anyone else to start the car since only proper keys will be able to do so The technology is believed to be more secure than a conventional car key as it makes it harder for a thief hot wire the vehicle and start it But its not foolproof and thieves have found ways to deceive and thwart the system so that even vehicles that have transponder keys arent immune from theft You might be able to program a transponder key by yourself if you have an instrument that works with your vehicle The key programmer should come with an instruction manual that will walk you through the process of programming your key Once you have the key and a key programmer follow the directions carefully and ensure that the security light on your dashboard is on prior to turning your engine on You can seek out a professional locksmith to help you if youre not sure about using the key programmer or you have a car with more advanced features such as remote head keys or intelligent keys Theyll have the tools and equipment needed to cut a blank key delete the old one from the computer in the car and program the new key to work correctly This will save you time and money and keep your cars safety system functioning exactly as it should It is also safer than doing it yourself If you use a incorrect key programming software or follow a guide that is not official the information in your cars computer could be corrupted and the new key wont function automotive key programming may have to reprogramme your car keys if they dont work Its a straightforward process for the majority of modern cars that have key fobs Some models are more intricate and require a specific programming device which is usually available at the dealer or from auto locksmiths Fortunately the majority of modern automobile manufacturers have made their key systems more secure in order to prevent theft of vehicles The key system is designed to avoid hotwiring the method of using another vehicles key to start the engine and other similar methods Therefore youll require at least two functioning key fobs for your vehicle to ensure that the process works Its essential to have at minimum two spare keys on hand The key fobs contain electronic chips that communicate via radio signals to the cars receiver The cars computer then compares this code on the key to the one in its database If the codes match the car will start If not the car will be dead or refuses to start Most of these electronic key can be programmed and replaced by an expert locksmith or auto dealer using the appropriate equipment If you can locate an inexpensive car key programmer on the internet or at an auto parts store the procedure should be fairly straightforward You will need to follow a set of instructions that includes inserting the ignition keys turning it on without starting the car and then switching off the key You will need repeat the steps a specific number of times in the timeframe you specify to put your vehicle in programming mode The door locks will cycle or a chime will sound Certain modern vehicles can only be programmed by means of a tool thats connected to the onboard diagnostics port or an EEPROM programming procedure These tools are expensive and therefore unaffordable by most car owners Many experts in the field recommend consulting a professional auto dealership or locksmiths to program your keys