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How to Go About Programming a Car Key Key programming for your car is an important process for protecting your car from thieves. While some manufacturers permit you to program your own keys however, it's best to delegate this task to a professional locksmith. First, you must purchase a blank car key that includes the correct vehicle chip. These can be purchased at most auto and hardware stores. Keyless entry system The keyless entry system is a fantastic option to keep your vehicle safe from thieves. The system works by emitting an electronic signal that activates a receiver inside your car when you insert your key in the ignition. The receiver sends out an alert to unlock your car's doors. It is easy to use and convenient. You can even create multiple keys to work at the same time, which is a great option for those who share vehicles with family members or coworkers. To program your new remote, make sure the vehicle is off and that all doors are shut. Press the lock button on the first keyfob and wait until it sounds a chime or the lock is turned off. Repeat this step for each of the key fobs you want to program. The procedure varies slightly based on the manufacturer of your car. Check your user manual for specific instructions. Certain car manufacturers prohibit you from programming your own fobs without access to the equipment of the manufacturer. Others, like Mercedes, require that you go to a dealership in order to get your key fob programmed. This approach 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 could try using a programmer that is compatible with your vehicle. Consult the owner's manual, or a locksmith, for more details on how you can utilize a programmer. If you follow these instructions and follow the steps, the EEPROM programming process for the majority of automobile brands will be fairly simple. You will need a blank car key that has transponder to program the new chip. These are available at a variety of auto and hardware parts stores. After you purchase the blank key, you will have to connect the programmers to your vehicle's ECU (electronic control unit). The ECU in the engine bay or under the dash, however, it differs by manufacturer. You can find the security code for certain vehicles in the manual of your vehicle or on the internet. Transponder chip The transponder is a microchip with an unique code. When it is inserted into the ignition the transponder chip transmits a radio message to the immobilizer system of the car. The computer in the car interprets the signal to determine if it matches an ignition key that is valid. If the signal doesn't match the computer of the car, it will disable the ignition and stop it from beginning. This makes it more difficult for thieves to rob vehicles. Most modern-day cars come equipped with this security gadget. Like all electronic devices, the transponder chip can malfunction or fail. This can be extremely frustrating as it means your car won't start. There are a few easy things you can try to fix the problem. One solution to the problem is to replace the battery in the transponder chip. This is a fairly simple procedure that will restore the ability for your vehicle to start. Another option that is more costly is to replace the actual transponder chip. If you choose to go this route, it is crucial to choose a locksmith who is experienced in this kind of work. You can purchase a brand new key that is equipped with an electronic transponder at any auto parts store, or even an auto dealer. However, you'll need to get it programmed to your specific vehicle. It's not easy to figure out a solution since each car manufacturer has their own anti-theft program. If you have an additional key that is already programmed to your vehicle it is possible to reprogram it to replace the one you lost. This will make sure that only you are able to start your car and protect it from thieves. However, it is important to remember that a car that has a transponder chips cannot be operated with a standard key, and can only be started with the original. It is essential to keep at least two keys in working order. EZ Installer The EZ Installer permits customers to replace their car keys without going to the dealer. This saves them time and money. The device connects to the vehicle's standard OBD port and pairs the new remote fob or key with the current key. It can be used on most modern automobiles, including those that have proximity and push button start. The device is available online or at the local hardware store. It also comes with a key-blade that can be cut by a locksmith, hardware store or at the dealership. reprogram car key comes with directions as well as a prepaid return shipping label. It is compatible with all Ford and Lincoln models, but does not support all makes and models. Tom's website has the most up-to-date compatibility information if you are not sure if this works with your model. Contrary to conventional programming equipment, the EZ Installer Pro doesn't charge “tokens” per key, making it simpler for retailers and key professionals provide new keys. The EZ Installer Pro can be purchased at a fraction of the cost of typical token costs. The EZ Installer is a simple, plug and play OBD device that lets you connect a brand new key or remote to your vehicle in a matter of minutes with an app on your smartphone. It is available for various models of automobiles, trucks, and SUVs. Download the app and connect the EZ Installer to your vehicle's OBD and follow the steps. The EZ installer is connected to your vehicle VIN at the time of its first use. It is not compatible for programming a different car. It comes with a full money-back guarantee from Car Keys Express. EEPROM The EEPROM chip is the main chip controlling the car's electronic and security features. Modern car keys, in contrast to older keys that had mechanical parts, are almost entirely digital and need to be programmed either by an automotive locksmith or a dealership. This involves inserting the spare key into the ignition, and manipulating the key until the car enters programming mode. Each car manufacturer has a different reprogramming procedure. It's important to check the owner's guide for your particular model. Dealers can provide you with the software needed to program certain models. In these instances the best choice is to speak with a locksmith, as they can supply you with the necessary tools and help you save money. A professional will ensure that the new key has been programmed correctly and that the functions are functioning. To reprogram your car's key it is necessary to have a spare working key, a dremel and some tools to access the electronic controller unit (ECU). The ECU is usually located under the dashboard, however it's important to check the owner's manual for sure. Reprogramming the ECU is straightforward. First, you have to open the door for the driver and close it, excluding the one on the driver's side. Insert the key in the ignition and turn the key to “On without starting the car. This step is required to be repeated a specific number of times in the space of a few minutes and is different for each vehicle. The car will enter programming mode after the process. This is usually signaled with an audible sound or the locks turning. Press the lock button on your newly programmed key fob after the ECU has entered programming mode. You must then quickly switch to the second working key. Don't wait around between steps, or your car may wipe out all the other key fobs, and require you to start the process over again. You can also re-program car keys programed by a third party, but be patient and watchful.