Reprogramming Car Keys
Transponder keys are thought to be more secure for cars and harder to copy by thieves. However, a key may need to be reset in the event that it is damaged or lost.
You can reprogram your key fobs at home, however you should know the right process. For the best results you should have the following items:
Keys
Modern cars require a transponder key to operate. This gives security and anti-theft protection. The keys are programmed by a locksmith or authorized dealer to work with your car's system and the specific model. They are expensive to replace if lost therefore, you should keep extras handy. You will also find replacement key fobs on various websites and in a variety of brick-and-mortar automotive shops. How can you be sure that the key you purchased is authentic? Do you know whether it was programmed for another car or if it could be reprogrammed to fit your vehicle?
If you are planning to program an entirely new key, the first step is to make sure that your car is running. Insert the key you want to program into the ignition, but do not turn it. You will only have a couple of seconds before the car's system resets the commands and then exits programming mode. It is crucial to move quickly and don't be patient between each step. To prevent this from happening, shut off the engine. You can test the system of your car by turning the key to the "on" position, then back to the "off" position. The door locks should cycle and you'll hear a chime signalling that the process has been successful.
Certain cars with more modern technology have rolling key technology that prevents thieves from using a stolen vehicle's key to open it. This technology is still vulnerable to a technique known as replay attack, which allows thieves to record the signal received from the key fob of the car and then replicate it to open the car. To counter this, manufacturers have added a security feature called CAN bus protocol to stop attacks on hacking.
Some manufacturers use a special encryption on their keys, which cannot be decoded using a simple program. These types of cars require to be programmed by a professional, so you should only try this if you have experience working with electronic devices. It is a good idea to consult your car's owner manual or search for the manufacturer online, as these steps vary by vehicle model.
Transponder chips
Car keys with transponder chips require a specific reprogramming to work. While any hardware store can cut a new key for you, the main issue is how to integrate it with your specific car. A key that has been reprogrammed will need to be compatible with the exact identification number of your vehicle or else it won't be able to start the engine.
Transponder chips are a common feature of modern automobiles and are designed to stop car theft. The chip is a microcircuit that emits a radio frequency signal when the key is put into the ignition. The car then detects the signal and starts the engine if it is in line with the original one that was programmed into the vehicle. The car will also shut down if a frequency is not valid. This makes it difficult for thieves with no experience to hot-wire a vehicle and then start it.
The key and the chip are connected via the circuit board which includes an induction coil. When the key is put in the ignition the magnetic field is generated around the transponder. This generates a signal that gets absorbed by the coil, which then transmits it to key's identification number. The ID number of the key is sent back to the vehicle, and if it matches the engine will start.
There are several ways to program a key transponder, but all of them require the use of a specific tool. You can purchase these tools on the internet or at many locksmiths for cars. They are not cheap, but they are essential for programming the chip into your car.
You could also utilize a transponder that is reprogrammable that has been previously programmed for another vehicle. In this case you'll need sure that the key is not damaged or the transponder been altered in any way. You can read the chip using a scanner, or a computer equipped with a USB connector.
Reprogramming the transponder is a straightforward procedure, but requires specific software. It also requires an scanner tool. If you're new to the process, it's best to seek the assistance of an auto locksmith. Avoid buying used keys as they might already be programmed, and they won't be compatible with your vehicle.
EZ Installer
Until recently those who wanted to replace their keys were required to go to an authorized dealer to get it digitally paired to the vehicle. This is because modern keys require to be "paired" to the vehicle of the owner in order to function, which required expensive and complex equipment that only dealers had access to. The EZ Installer by Car Keys Express simplifies the process of pairing modern keys to vehicles for retailers and locksmiths.
The Easy Installer is a straightforward, "plug and play" OBD device that connects new keys with vehicles without the need for complicated equipment or programming tokens. It works by connecting directly to the vehicle's standard OBD port and utilizing an app for mobile devices to provide simple instructions. The EZ Installer works with most modern vehicles that include proximity keys or push-button start. Check the compatibility guide at Tom's website to determine 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 with typical per-key "token" fees, the EZ Installer Pro doesn't charge these fees at all, so it can be used for as long as a retailer or key professional wishes to keep it. The EZ Installer eliminates the need for expensive monthly service contracts and software updates. This allows retailers to save money while providing their customers the same high quality service as OEM equipment. It also comes with an industry-leading warranty that covers all hardware and software for the duration of its life.
Tools
Locksmiths, auto mechanics, and vehicle owners can use car key programming tools to create new keys for cars. These tools communicate with the vehicle's immobilizer to program new keys and remotely controlled. They can also be used to clone 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 sought-after tools for programming keys for cars. This vehicle diagnostic scanner offers advanced OE-level features and is compatible with most of the major brands. It also has a key programming function and the ability to save current key data. It also has the capability of resetting the immobilizer and clearing immobilizer fault codes.
The OTOFIX IM1 is another important tool for reprogramming car keys. This auto diagnostic scanner can read passwords for all major brands and has advanced OE-level features. It is also able to perform online calibration as well as customization and reading of EEPROM. The tool is also equipped with the ability to bypass the PIN code of BMW and Mercedes. It can also read EEPROM, car MCU and CAN EEPROMs for the majority of major models.

The Bidirectional scanner XToolUSA is a popular choice to reprogramme vehicles. It can read codes and key information from most vehicles in just a few seconds which makes it a perfect tool for auto shops and locksmiths. It also has an active test feature that allows you to identify the issue quickly.
There are a myriad of ways to modify the car's programming. It is essential to have the proper tools, and also to know how they work. A mistake in programming could cause damage to the immobilizer of the vehicle and prevent it from starting. It is recommended to consult a professional before trying to reprogram your car key.
Another option is to purchase a kit that includes a key programmer, remote control key, as well as transponder chips. This will ensure that you have everything you need to reprogramme your car key. This method takes longer and requires a basic understanding of soldering and electronics.