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Reprogramming Car Keys Transponder keys are believed to be more secure for cars and harder to copy by thieves. Keys may need to be reprogrammed in the case of damage or lost. You can change the programming of your key fobs at home, but you should know the right process. It is essential to have these items to ensure the most effective results: Keys Most modern vehicles require a transponder key or fob in order to work, which provides security and anti-theft protection. These keys must be programmed to your specific vehicle and its systems by a licensed locksmith or dealer. It's expensive to replace them if they become lost, so it's better to have spares in your possession. You can purchase key fobs to replace them in online stores and many brick and mortar auto shops. How can you be sure that the key you purchased is genuine? Do you know whether it has been programmed to work with another vehicle or if it is able to be programmed to work with your car? To program a new car key, you must first ensure that your vehicle is running. Insert the key you wish to program into the ignition, but do not turn it. There are only a few seconds before the car's system resets commands and leaves programming mode. programmed car keys is important that you be quick and don't wait between each step. Turn off the engine to prevent this. Change the key from “on” to “off” to test the system. The door locks should cycle, and you'll hear a chime to indicate that the procedure was successful. Certain cars with more modern technology have rolling key technology, which stops thieves from using a stolen vehicle's key to start it. This feature is still vulnerable to a technique called a replay attack. It allows thieves to record and then reproduce the signal from the vehicle key fob to open the car. To counter this, manufacturers have added an additional security feature known as the CAN bus protocol to thwart attacks on hacking. Some manufacturers use a special encryption on their keys that cannot be decoded using a simple program. These types of vehicles will need to be programmed by a professional. Therefore, you should only try this only if you've worked with electronics. Check the manual of your car or visit the manufacturer's website to find out how to program it. The steps to follow will differ depending on the type of vehicle. Transponder chips Car keys with transponder chips require special reprogramming to work. While any hardware store can cut a new key for you, the biggest challenge is making it function with your specific car. The key you reprogrammed needs to be matched with the specific identification number of your car otherwise it won't even start the engine. Transponder chips are a typical feature of modern cars and are designed to guard against car theft. The chip is a tiny microcircuit that transmits a radio-frequency signal when the ignition key is put in. The car then recognizes the signal and then starts the engine in case it matches the original signal that was programmed into the vehicle. The car also shuts down if a frequency is not valid. This makes it harder for novice car thefts to hot-wire a vehicle and then start it. The key and the chip are connected via an electronic circuit board that contains an induction coil. When the key is put in the ignition the magnetic field is created around the transponder. This generates a signal that gets amplified by the coil which then transmits it to key's identification number. The key's ID number is sent back to the vehicle, and if it matches, the engine will begin to run. There are many ways to program a transponder key however, they all require a special tool. These tools can be purchased online or from most automotive locksmiths. They are not cheap, but they are crucial for programming the chip in your car. You could also make use of a transponder key that can be reprogrammed that has been previously programmed for a different vehicle. In this case, make sure that the key has not been damaged or the transponder has not been altered in any way. To accomplish this, you'll need scanners or a computer equipped with a USB port to read the chip and determine its identity. Reprogramming a transponder key is quite simple, but it requires special software and a scanning tool. It's best to ask an auto locksmith for help for those who are new to the process. It is also recommended to avoid purchasing second-hand keys as they're probably already programmed and won't work with your car. EZ Installer For decades, car owners who needed to replace their key fob had no other alternative than to visit a dealer to have their key electronically linked to their vehicle. This is because in order for modern keys to function they have to be “paired”. This required expensive and complex equipment that was available only to dealers. The EZ Installer by Car Keys Express simplifies the process of pairing up modern keys to vehicles for retailers and locksmiths. The Easy Installer is a straightforward, “plug and play” OBD device that pairs new keys to vehicles without the need for complex equipment or programming tokens. It connects directly to the standard OBD port of the vehicle and uses an application that is mobile to provide simple to follow instructions. The EZ Installer is compatible with the majority of newer vehicles that have proximity keys or push button start. Check the compatibility guide at Tom's site to see if your vehicle is compatible. If the device fails to program the remote or key purchased from Tom's into a vehicle compatible, a full refund is offered. Unlike traditional programming equipment, which costs retailers and key professionals tens of thousands of dollars in “token” fees per key, the EZ Installer Pro does not charge these costs. It is available for as long as a key professional or retailer wants. The EZ Installer eliminates the need for expensive monthly service contracts and software updates. This allows retailers to save money while giving their customers the same high quality service as OEM equipment. It also comes with a world-class warranty that includes all software and hardware for life. Tools Car key programming tools can be utilized by auto technicians, locksmiths and even owners of vehicles to program new keys for their automobiles. These tools connect to 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 a valuable tool for those who own a car. Autel Maxisys MS906BT is one of the most well-known tools for programming keys for cars. The scanner for diagnostics of vehicles provides advanced features OE-level and is compatible with most of the top brands. It also includes a key programming function and the ability to save the most recent important data. It is also capable of resetting the immobilizer and clearing fault codes. Another essential tool for reprogramming car keys is the OTOFIX IMM1. This auto diagnostic scanner can read passwords for most major brands and comes with advanced features that are OE-level. It also has the ability to perform online calibration, customization, and EEPROM reading. The tool also has a feature to bypass the BMW or Mercedes PIN code. It also has the ability to read EEPROMs, car MCUs, and CAN-EEPROMs for most major models. The XToolUSA Bidirectional Scanner is another popular choice for reprogramming cars. It can read codes and key information from most vehicles within a few seconds which makes it a perfect tool for auto shops as well as locksmiths. It also comes with a live test function that can help find the issue quickly and effectively. There are many ways to modify the car's programming. It is crucial to have the proper tools, and to know how they work. A mistake in programming could cause damage to the immobilizer on the vehicle and prevent it from starting. It is recommended to seek advice from a professional prior to attempting to reprogram a car key. You can also purchase a kit that includes the key programmer, a remote control key and transponder chip. This will ensure that you are supplied with all the tools you need to reprogram your car key. This process is more time-consuming and requires knowledge of soldering and electronic devices.