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Reprogramming Car Keys Transponder keys are thought to be more secure for vehicles and more difficult to copy by thieves. The key could need to be reprogrammed in case of damage or lost. You can change the key fobs you own however, you must be aware of the correct procedure. To get the best results, you must have the following items: Keys Most modern vehicles require some kind of transponder key or fob to operate, ensuring security and protection against theft. The keys must be programmed to your specific vehicle and its features by a licensed dealer or locksmith. It's costly to replace them if they are lost, so it's better to have spares available. You can purchase replacement key fobs in online stores, as well as many brick and mortar auto shops. How can you ensure that the key you purchased is authentic? Do you know whether the unit is programmed to work with a different vehicle or if it could be programmed again? If you're looking to program a new key, the first step is to make sure that your car is on and running. Insert the key you want to reprogram into the ignition, but do not turn it. There are only a few seconds left before the system resets all commands and then exits the programming mode. Therefore, it is crucial to be quick and not wait between steps. To avoid this happening, turn off the engine. You can check the car's system by turning the key to the “on” position, then back to the “off” position. There should be a chime signalling that the procedure was successful. The door locks will be able to cycle. Some newer vehicles use rolling keys to stop thieves from using stolen keys to start the car. The technology is still susceptible to a method known as replay attack that allows thieves to record the signal from the key fob on the vehicle and reproduce it later to unlock the car. To prevent this, manufacturers added security features known as the CAN bus protocols to ward off hacking. Some manufacturers use a special encryption on their keys that cannot be decoded using a simple program. You should only try this method if your previous experiences are with electronics. Consult your car's manual or look up the manufacturer's website to find out how to program it. The steps are different depending on the model of vehicle. Transponder chips Car keys that feature transponder chips require a special programming to function. Any hardware store can give you an entirely new car key, however the real challenge lies in implementing it to your vehicle. The key needs to be programmed to match the exact identification number of your vehicle, or else it will not start. Transponder chips, used to prevent car theft are a standard feature of modern automobiles. The chip is a microcircuit which transmits a radio frequency signals when the key is placed in the ignition. The car then detects the signal and then starts the engine in case it matches the original one that was programmed into the vehicle. The vehicle is also programmed to stop if it detects an invalid frequency. This makes it harder for novice car thefts to wire a vehicle hot and then turn it on. A circuit board equipped with an induction coil that connects the chip to the key. When the key is put in the ignition the magnetic field is created around the transponder. This generates a signal that gets taken up by the coil, which transmits it to the key's identification number. The ID number of the key is transmitted back to the vehicle, and if it is in line with the engine will begin to run. There are several ways to program a transponder key, but they all involve using an appropriate tool. You can purchase these tools online or at most locksmiths for cars. They're not cheap, but they're vital for programming the chip to your vehicle. You can also use a reprogrammable transponder key that was previously programmed for a different vehicle. In this scenario, you'll need to make sure that the key is not damaged or the transponder has been altered in any way. The chip can be read with a scanner, or a computer that has a USB connector. The process of reprogramming an transponder's key is simple, however it requires specialized software and a scan tool. If you're new to the process you should seek help from an auto locksmith. It is also recommended to avoid purchasing second-hand keys as they're probably already programmed and will not work with your car. EZ Installer For a long time, owners of cars who required replacement of their key fob had no alternative than to visit a dealer to get their key linked to their vehicle. This is because in order to make modern keys function they must be “paired”. This required expensive and complex equipment that was only available to dealers. The EZ Installer from Car Keys Express solves this problem for retailers and locksmiths by making it easier for connecting modern keys to vehicles. The Easy Installer is a straightforward, “plug and play” OBD device that connects new keys to vehicles, without the need for complicated equipment or programming tokens. It connects directly to the standard OBD port of the vehicle and uses an app that can be downloaded on mobile devices to provide easy to follow instructions. The EZ Installer is compatible with most newer models that have proximity keys or push button start. To see if it will be compatible with your specific vehicle, refer to the compatibility guidelines on Tom's site. A money-back guarantee of 100% is offered in the event that the device fails to successfully program a key or remote purchased from Tom's for a vehicle compatible. In contrast to traditional programming equipment that can cost retailers and key professionals thousands of dollars in typical per-key “token” costs, the EZ Installer Pro doesn't charge these fees at all, so it can be used as long as a key professional wishes to keep it. The EZ Installer also eliminates the necessity for expensive monthly service contracts and updates, meaning that it will reduce costs for retailers while providing the same quality service as OEM equipment. It also offers a leading warranty that covers hardware and software for the duration of your life. You can also find out more about Car key programming tools are used by locksmiths, auto technicians and owners of vehicles to program new keys for their automobiles. These tools can communicate with the immobilizer of the vehicle to program new keys and remote controls. They can also be used to duplicate existing keys and create duplicate keys. These tools are an essential tool for anyone who owns a car. Autel Maxisys MS906BT is one of the most popular tools for programming car key s. This scanner for vehicle diagnostics offers advanced OE-level features and is compatible with the majority of the top brands. It also includes a key programming function and is able to backup current key data. It is also capable of resetting the immobilizer and clearing fault codes. Another important tool for reprogramming car keys is the OTOFIX IM1. This auto diagnostic scanner is able to read passwords from all major brands and comes with advanced features comparable to OE. It can even perform online calibration, customization, and reading EEPROM. The program also has an option to bypass a BMW or Mercedes PIN code. It is also able to read EEPROMs, car MCUs, and CAN-EEPROMs for most major models. The XToolUSA Bidirectional Scanner is another option to reprogramme cars. This is a wonderful tool for auto repair shops as well as locksmiths as it can read codes and key data from most vehicles within seconds. It also has a live test feature that can help find the problem quickly. While there are many different ways to reprogram your car, it is crucial to use the right tools and know how to utilize them. Uncorrect programming can damage the vehicle's immobilizer and prevent it from beginning. Before attempting to program your car key, it is recommended to seek advice from an expert. You can also purchase a kit which includes a key programmer, remote control key and transponder chip. This will ensure that you're equipped with everything you need to reprogram your car's key. However, this method takes longer and requires a basic understanding of electronic circuits and soldering.