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How to Go About Programming a Car Key Car key programming is an essential step for protecting your car against thieves. Certain manufacturers give you the option of reprogramming your keys by yourself, but it is best to leave this to professional locksmiths. First, you need to purchase a blank key that has the appropriate chip for your vehicle. They are available at most hardware and auto parts stores. Keyless entry system It's a great method to protect your car from theft. It works by emitting a signal that activates the receiver in your car when you put your key in the ignition. The receiver then emits an alert that opens your car door. The system is simple to use and convenient. You can even create multiple keys to work simultaneously this is a wonderful option for those who share vehicles with family members or coworkers. To program your new remote, ensure that the vehicle is turned off and that all doors are shut. Then press the lock button on the first key fob, and wait for it to buzz or turn its locks. Repeat this process for each of the key fobs you'd like to program. The procedure varies slightly depending on the car manufacturer, so it's best to consult your owner's manual for specific instructions. Certain car manufacturers prohibit programming a key fob, without access to their equipment. Others, such as Mercedes, require that you go to a dealership to get a key fob reprogrammed. This method isn't ideal because it requires the use of a dealer's specialized tools, and is usually expensive. If you are looking to save money, you can use a programer that works with your car. Check the owner's manual or a locksmith for more details on how to make use of a programming. If you follow these guidelines then the EEPROM programming procedure will be fairly easy for most car brands. To program a new car key chip, you'll require a blank key with the correct transponder. These are available at many hardware and auto stores. You'll have to connect your ECU (electronic controller unit) to the blank key after purchasing it. The ECU in the engine bay or under the dash however, it differs by manufacturer. Certain vehicles must be equipped with a security code and you can find it from the owner's manual for your vehicle or online. Transponder chip The transponder chip is a small microchip with a unique code. When it is inserted into the ignition, the transponder chip sends a radio message to the immobilizer system in the car. The computer in the car decodes the signal to determine if it corresponds with an ignition key that is valid. If the signal isn't the one it is it will turn off the ignition to stop the car from starting. This feature makes it much more difficult for thieves to rob vehicles. Most modern-day cars come equipped with this security feature. As with any electronic device the transponder chip may fail or malfunction. This can be a major issue and cause your car will not start. There are a few basic ways to resolve the issue. The transponder chip's battery could be replaced to correct the issue. This is a relatively easy procedure that will allow the engine of your vehicle to start. Another option that is more costly is to replace the transponder chip. If you decide to replace the chip it is important to choose a locksmith with experience in this field. You can buy a new key that has a transponder in any auto parts store, or even an auto dealer. However, you'll have to have it programmed for the specific vehicle you own. It's not easy to find a solution because each car manufacturer has their own anti-theft system. If you have an extra key that has been already programmed into your vehicle it is possible to reprogram it to replace the one you lost. This will ensure that only you can start your vehicle and protect it from thieves. However, it is important to remember that a vehicle with a transponder chip cannot be operated with a standard keys and will only start with the original. Therefore, it is crucial to always have at least two functioning keys on your side. EZ Installer The EZ Installer makes it simple for consumers to replace modern car keys, while avoiding the hassle and expense of going to the dealership. The device connects directly to the vehicle's OBD port, and then pairs the new key or remote with the original one. It can be used on all modern automobiles, including those that have proximity and push button start. The device is available online or at the local hardware store. It also includes a key blade that can be cut at a locksmith, hardware store or at the dealership. The kit comes with instructions and an unpaid return shipping label. It is compatible with the majority of Ford and Lincoln models. However, it may not work on all models. Tom's website contains the most up-to-date compatibility information if not sure if this will work with your model. Unlike relevant web-site unlike traditional programming equipment, the EZ Installer Pro does not charge per-key “token” fees, making it cheaper for retailers and key professionals to provide new keys. The EZ Installer Pro costs less than half the cost of a typical token cost. The EZ Installer, a simple plug-and-play OBD device lets you pair a new remote or key to your vehicle in just a few minutes using an application on your smartphone. It's compatible with various models of vehicles and trucks as well as SUVs. Download the app, connect the EZ Installer with your vehicle's OBD and follow the instructions. The EZ Installer is linked 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 primary chip that controls the car's electronics and security features. In contrast to older keys, that have mechanical components keys, modern car keys are almost entirely electronic and have to be programmed by an auto locksmith or dealer. This process involves inserting a working spare key into the ignition and then manipulating it until the car is in programming mode. The procedure for reprogramming differs for each manufacturer of cars. Therefore, it is important to consult the owner's instruction manual for your specific model. Dealers can supply you with the necessary software to program certain models. In these instances, calling a locksmith is the best option as they will 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 of its functions work. To reprogram your new car key, you'll require a spare key that works, a dremel tool, and a few other tools to access the electronic control unit (ECU). The ECU is usually situated under the dashboard. However, it's important to review the owner's manual to make certain. Reprogramming is simple. You must first open and close the driver door, except the one on the driver's side. Next, insert the key into the ignition and move it to the “On position, but do not start the engine. This process must be repeated a particular number of times in the space of a few minutes that is different for each vehicle. When the process is completed, the car will enter programming mode and this is typically accompanied by an audible chime or the locks turning. Once the ECU is in programming mode, it's crucial to press the lock button on the newly programmed key fob. Then, you need to quickly switch to the other working key. Do not wait between steps or the car may wipe out all the other key fobs and require you to start the process all 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 cautious.