Reprogramming Car Keys
Transponders in car keys are thought to keep cars more secure and are harder for thieves to duplicate. However, a key may need to be reprogrammed if it becomes damaged or lost.
You can change the programming of your key fobs at home, but you must be aware of the proper procedure. You should have these items to get the most effective results:
Keys
Most modern vehicles require a transponder key or fob in order to operate, ensuring security and protection against theft. These keys are programmed by a locksmith or an authorized dealer to function with the car's systems and specific model. They can be costly to replace in the event of loss, so it is recommended to keep spare keys in the car. You will also find replacement key fobs in various online stores and in many brick-and mortar auto shops. How can you be sure that the key you purchased is authentic? Can you tell whether the unit has been programmed to work with another vehicle, or if it can be reprogrammed?
To program a new car keys, first make sure that your vehicle is operating. Insert the key you wish to reprogram into the ignition, but do not turn it. You have only a few seconds left before the system will reset all commands and leaves the programming mode. Therefore, it is important to move quickly and not wait between steps. Shut off the engine to stop this. Turn the key from "on" to "off" to test the system. The door locks should cycle and you will hear a sound that indicates that the process was successful.
Certain newer vehicles utilize rolling keys to keep thieves from using stolen keys to open the car. The technology is still susceptible to a technique dubbed a replay attack that allows thieves to record the signal from the vehicle's key fob and reproduce it later to open the car. To counter this, manufacturers have added a security feature called the CAN bus protocol to prevent attacks on hacking.
Certain manufacturers also employ special encryption on their key fobs which cannot be decoded by an easy program. You should only attempt this method if your previous experience is with electronics. Consult your car's manual or look up the manufacturer's website to learn how to program it. The steps are different according to the type of vehicle.
Transponder chips
Car keys that feature transponder chips require a special reconfiguration to work. Any hardware store can make you a new car key but the real challenge is in integrating it with your car. A key that has been reprogrammed will need to match the specific identification number of the vehicle or else it won't be able to start the engine.
Transponder chips, which are used to prevent car theft are a standard feature of modern automobiles. The chip is a microcircuit which transmits a radio frequency signal when the key is inserted in the ignition. The car then scans for the signal and then starts the engine if it matches the original one that was programmed into the vehicle. The car also shuts down if the frequency is not valid. This makes it much harder for car thieves with no experience to connect a vehicle with hot wires and start it.
A circuit board equipped with an induction coil that connects the chip to the key. When the key is placed in the ignition it creates an electric field around the transponder. This generates a signal, which is taken up by the coil and sent to the key identification number. The key's identification number is returned to the car, and the engine starts when the identification number matches.
There are many ways to program a key transponder, however all of them require a special tool. These tools can be purchased through the internet or from many automotive locksmiths. These tools aren't inexpensive, but they are vital for programming the chip in your car.
You may also use a unreprogrammable key that was programmed for an alternative vehicle. In this case you'll need to make sure that the key isn't damaged or the transponder has been altered in any way. The chip can be read with a scanner, or a computer with an USB connector.
The process of reprogramming an transponder's key is simple, however it requires an expertly designed software and scan tool. If you're just beginning it is recommended to seek the assistance of an auto locksmith. Avoid buying used keys as they might already be programmed, and they won't work with your car.
EZ Installer
For decades, car owners who required replacement of their key fob had no other option than to go to an auto dealer to get their key linked to their vehicle. This is because, in order to make modern keys work they must be "paired". This required expensive and complex equipment that was available only to dealers. The EZ Installer from Car Keys Express solves this problem for retailers and locksmiths by easing the process of connecting modern keys to vehicles.
The Easy Installer, a straightforward "plug-and-play" OBD device, connects new keys to vehicles without the need for complicated equipment or tokens to facilitate programming. It connects directly to the standard OBD port of the vehicle and uses an app that can be downloaded on mobile devices to provide simple to follow instructions. The EZ Installer works with a wide range of modern vehicles that include proximity keys or push-button start. Visit the compatibility guide on Tom's site to see if your vehicle is compatible.
If the device is unable to program a remote or key purchased from Tom's into a vehicle that is compatible then a full refund is provided.
Unlike traditional programming equipment that can cost retailers and key professionals thousands of dollars through typical per-key "token" charges, the EZ Installer Pro doesn't charge any fees, so it can be used for as long as a key professional wants it to be. The EZ Installer eliminates the need for costly monthly service contracts and software updates. This lets retailers save money while offering their customers the same high quality service as OEM equipment. It also offers a top warranty that covers both hardware and software for the duration of your life.
Tools
Locksmiths, auto mechanics, and owners of vehicles can utilize car key programming tools to create new keys for vehicles. These tools connect to the immobilizer of the vehicle to program new keys and remote controls. These tools can be used to make duplicate keys and make keys cloned. These tools are an essential tool for anyone who owns a vehicle.
Autel Maxisys MS906BT is among the most popular tools for programming keys for cars. The scanner for diagnostics of vehicles is compatible with the major brands and provides advanced OE features. It comes with an essential programming feature and can backup current key data. It is also capable of resetting the immobilizer as well as clearing immobilizer fault codes.

The OTOFIX IM1 is an important tool for reprogramming keys for cars. This auto diagnostic scanner can read passwords for all major brands, and it comes with advanced features comparable to OE. It is also able to perform online calibration and customization as well as reading EEPROM. automotive key programming near me comes with the ability to bypass a BMW or Mercedes PIN code. It also has the ability to read EEPROMs, car MCUs, and CAN-EEPROMs of all major models.
The XToolUSA Bidirectional Scanner is another option to reprogramme cars. This scanner can read key information and codes from most vehicles in a few seconds, making it a great tool for auto shops and locksmiths. It also features an active test function that can help determine the cause quickly and effectively.
There are a myriad of ways to modify the car's programming. It is important to have the proper tools and to understand how they function. A mistake in programming could cause damage to the immobilizer of the vehicle and prevent it from beginning. Before attempting to reprogram your car's key, it is recommended to consult an expert.
You can also purchase a kit which includes a key programmer, remote control key and transponder chip. This will ensure that you have everything you need to reprogramme your car key. However, this method will take longer and requires a basic understanding of electronics and soldering.