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How to Go About Programming a Car Key The programming of your car keys is an essential procedure to safeguard your vehicle from thieves. Certain manufacturers give you the option to reprogram your keys yourself, but it is best to let professional locksmiths. First, you need to purchase a blank key with the right chip for your car. These are available from most hardware and auto parts stores. Keyless entry system It is a great way to protect your car from theft. The system works by emitting an electronic signal that activates a receiver inside your vehicle when you put your keys in the ignition. The receiver then sends out an alert that opens your car's door. The system is simple to use and convenient. It is possible to set up multiple keys to are able to work at the same time and is perfect for those who share a car with coworkers or family members. To program your new remote, make sure your vehicle is turned off and that all doors are closed. Press the lock button on the first keyfob. Wait until car key programing , or turns its locks. Repeat this step to program each key fob. The procedure is different for each car manufacturer, so it is best to consult your owner's manual for specific instructions. Certain car makers prohibit you from programming your own fobs without having access to their equipment. Others, such as Mercedes, require that you go to a dealership to get a key fob reprogrammed. This method has the disadvantage of requiring the use of a dealer's specialized tools, and is usually expensive. If you want to save money, you could test a programer that is compatible with your vehicle. Refer to the owner's manual of your vehicle or an expert locksmith for details on how to use the programmer and the steps to follow. If you follow these steps then the EEPROM programing process for a majority of automakers will be simple. You will require a new car key with a transponder to program a new chip. They are available at a variety of auto and hardware parts stores. After you have purchased the blank key, you will need to connect the device to your vehicle's ECU (electronic control unit). The ECU in the engine bay or under the dash but it varies by manufacturer. Some vehicles will need to have the security code set and you can find it from your vehicle's owner manual or on the internet. Transponder chip The transponder is a chip with an unique code. When it is inserted into the ignition, it sends a radio signal to the immobilizer system of the car. The computer of the car decodes the signal and determines if it is a valid key. If the signal does not match the computer of the car, it will disable the ignition and prevent it from starting. This feature makes it much harder for thieves to steal vehicles. This security feature is included in modern vehicles. As with any electronic device the transponder chip may malfunction or fail. This is extremely frustrating since it means your car won't start. There are a few basic ways to fix the issue. One way to fix the problem is to replace the battery in the transponder chip. This is usually a simple procedure, and it can restore your car's ability to start. A more expensive option is to replace the actual transponder chip. If you decide to replace the chip it is important to choose an experienced locksmith who has experience in this area. You can buy a new key that has a transponder in any auto parts store or even a dealership. But, you'll need to have it programmed for the specific car you have. This can be a challenge since every car manufacturer has their own anti-theft system, so there's no universal solution to this problem. You may be able use a spare key already programmed for your vehicle to program the one you lost. This will ensure that only you will be able to start your vehicle and protect it from thieves. However, it is essential to remember that a car equipped with a transponder chip will not work with a standard key, and can only be started using the original. It is crucial to keep at least two keys in good working order. EZ Installer The EZ Installer permits users to change their car keys without having to go to the dealer. This saves them time and money. The device connects to the vehicle's standard OBD port and pairs with a new key or remote fob with the current key. It can be used with most modern vehicles, including those equipped with proximity and push button start. The device is available online or at a local hardware store. The kit also comes with a keyblade that can be cut by an authorized locksmith, hardware shop or dealership. The kit comes with instructions and a pre-paid return shipping label. It's compatible with the majority of Ford and Lincoln models. However, it does not work with all models. Tom's website provides the most up-to-date compatibility information for you if you're not certain if this is compatible with your particular model. Unlike traditional equipment for programming, the EZ Installer Pro does not charge per key “token” costs, making it more affordable for key professionals and retailers to offer new keys. The EZ Installer Pro can be purchased at a fraction of the cost of tokens. The EZ Installer, a straightforward plug-and-play OBD device allows you to connect a new remote or key with your vehicle within minutes through an app on your smartphone. It's compatible with a variety of cars and trucks, and is easy to use. Simply download the application and connect the EZ Installer to your vehicle's OBD port and follow the step-by-step instructions. The EZ installer is connected to your vehicle VIN at the time of initial use. It is not able to be used to program a different vehicle. It is backed by a full money-back guarantee from Car Keys Express. EEPROM The EEPROM is the main chip that controls the car's electronic and security features. Modern car keys, in contrast to earlier keys with mechanical components, are entirely digital. They must be programmed either by an automotive locksmith, or dealership. This process involves inserting a working spare key into the ignition and then manipulating it until the car enters programming mode. The process of reprogramming is different for each car manufacturer. Therefore, it is important to read the owner's manual for your specific model. Dealers can provide you with the software required to program certain models. In these instances the best option is to contact locksmiths, since they will be able to provide you with the necessary tools and assist you in saving money. A professional will also ensure that your new key is properly programmed and all functions function. To reprogram your car's keys, you'll need a working spare key, a dremel and some tools to access the electronic controller unit (ECU). The ECU is typically located beneath the dashboard, but it is important to read the owner's manual to make sure. The reprogramming procedure is simple. You first need to open and close the door to the driver and not close the door on the driver's side. Then, you need to put the key in the ignition and turn it to the 'On position, without triggering the engine. This process must be repeated a particular number of times over a short period of time and is different for each vehicle. The car will go into programming mode after the process. This is typically indicated by an audible tone or the locks reversing. When the ECU is in programming mode, it is important to hit the lock button on the newly programmed key fob. Then, you must quickly switch to the working key. Do not delay between steps, or your car may wipe out all other key fobs and will require you to start the process over again. You could also try reprogramming the car key that was programmed by a different person, but you will have to be patient and watchful.