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How to Program a Car Key Modern cars have more than just a key that can start the engine They also come with a remote control that can lock or unlock doors These key fobs need to be programmed in order to function properly Some car keys can be preprogrammed by the owner however its best to consult with an expert This will avoid any damage to the computer system of the car and ensure that the key is working properly How do you program the key Most cars had basic key systems until the turn of the 21st century The keys were made of metal and had grooves to match the internal components in the ignition cylinder As time went on and technology improved as it did automobile manufacturers began blending physical and electronic protocols to stop theft These key systems are referred to as transponder keys or chip keys and are designed to make it harder for thieves to get into the vehicle The key chips that are in the keys have a unique serial number that transmits signals to the receiver inside your car When the signal is received it is compared to an existing code in the cars computer If the codes are identical the car will begin to begin to start If the codes dont match then your car will not even start This is one of the primary reasons why you should always keep a spare key in your car especially in the case of transponderbased systems Youll require special equipment to learn to program keys Youll also need the blank key that matches your specific make and model You can buy them at an auto locksmith or a locksmith dealership but its crucial to get the right ones If you attempt to use a key that is from an alternative model it will not work To start the process you need to insert the new key into the ignition and switch it to the on position Youll need to keep the new key in this position for about 10 minutes and 30 seconds After the time has passed you can take off your key and check if the security indicator on your dashboard has gone out If it didnt then youll have to repeat the process for another time This method is only compatible with GM vehicles and isnt foolproof If you want a more reliable and secure solution go to an auto locksmith or dealer to have the car programmed using an embedded chip They have the tools and equipment to connect to your cars onboard diagnostics port and make the switch Keyless Entry Systems Keyless entry systems give access to properties without the need for an actual credential Security is achieved through the combination of sensors and an onboard computer It is possible to monitor and control the system from anywhere within the property Keys and locks are not required The system can also identify lost or stolen cards and deactivate them Additionally the most recent models are cloudbased and permit remote management and configuration Modern automobiles are equipped with keyless entry systems To make this work it emits radio signals which are picked up by a special key fob These signals are then compared to the correct code in the cars computer and when everything is in order the car will start to unlock If the signals do not match then the car wont start There are a variety of steps you can follow to program your new key fob if its not already programmed First youll need to make sure that all doors except the drivers door are locked mobile key programming near me ll need to have the original key fob as well as any other devices you wish to program You can also visit your local auto parts store to see if theyve got the right tool for your vehicle If these steps do not work youll need consult the owners manual or a professional locksmith Once you have the correct tool follow the manufacturers instructions to begin changing the program of your key fob This process is usually quick and easy For instance you could be instructed to insert your new key into the ignition while keeping the doors shut and then press a button on the key fob within a brief time frame The car may respond by cycling door locks or emitting an audible sound as a sign that the key was successfully programmed Many locksmiths are equipped with special tools that let them bypass the builtin EEPROM security in your cars key fob or remote This is a risky technique and can cause corruption of the data in your cars computer It is best to let an expert handle this task because they will be able to lower the chance of data corruption and make sure your keys are properly programmed Transponder Keys Transponder keys also referred to as chip keys have a microchip built into the head of the key When the key is inserted into the ignition lock barrel and then turned to ON the antenna ring sends a burst of electromagnetic energy through the transponder chip The chip absorbs this energy and then sends a radio frequency signal which contains an identification number This code is in line with the unique serial numbers of the computer system of the car This stops unauthorized attempts to begin the car as only proper keys will be able to do so This type of technology is thought to be more secure than the traditional car key because it makes it difficult for a criminal to hot wire the vehicle and then start it Its not foolproof and thieves have found ways to trick and defeat the system Therefore even vehicles with a transponder keys arent safe from theft You might be able to program a transponder key by yourself if you have an instrument that works with your car The key programmer will come with an instruction manual that will walk you through the procedure of programming your key Follow the instructions and switch on the security light on your dashboard prior to beginning your engine You can contact an expert locksmith to assist you if you are not sure about using the key programmer or you own a car that has more advanced features such as remote head keys or intelligent keys They will have the tools and equipment necessary to cut an uncut key erase the old one from the computer of the car and program the new key for it to function correctly This will save you time and money and keep your cars safety system working exactly as it should Its also a lot safer than trying to do it yourself Utilizing the wrong key programming software or following unofficial guidelines could cause a problem with the information stored in your cars system and result in the new key not working Remotes You may need to reprogram your car keys if theyre not working Its an easy process for most modern vehicles that use keyfobs Some models are more complex and require a specific programming device which is usually available at the dealer or from auto locksmiths Fortunately many modern car manufacturers have improved their key systems to be more secure in order to reduce vehicle thefts The key system is designed to prevent hotwiring the practice of using another vehicles key to start the engine and other similar methods To ensure that this method works youll need at least two key fobs working for your vehicle It is essential to have at least two spare keys available Key fobs are equipped with electronic chips that communicate using radio signals to the cars receiver The computer examines the code of the key with the database If the codes match the car starts If the codes dont match then the car will not start or will remain dead Most electronic keys can be programmed and replaced by a professional locksmith or dealer in the field with the right equipment If you can locate a cheap car key programmer online or at an auto parts store the process will be relatively simple Youll have to follow a set of steps which include inserting the ignition key and turning it on without starting the car and then turning off the key Youll need to repeat this process a certain number of times within a specific time period to allow your vehicle to enter programming mode The door locks will turn on and off or a chime will sound Certain modern vehicles 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 making them unaffordable for most car owners The majority of car experts recommend consulting with a professional auto dealership or locksmiths to program your keys