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How to Go About Programming a Car Key Key programming for your car is an essential step for protecting your car against thieves. Some manufacturers allow you the option of programming your keys by yourself, but it is best to let an experienced locksmith. The first step is to purchase a blank key that has the correct chip for your vehicle. These are available at most hardware and auto stores. Keyless entry system It's a great method of keeping your car safe from theft. The system works by sending an electronic signal that activates a receiver inside your vehicle when you put your key in the ignition. The receiver then transmits the signal to unlock the door of your car. It is also simple to use and convenient. You can even create multiple keys to work at the same time, which is a great feature for those who share cars with coworkers or family members. To program your new remote, ensure that your 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 procedure to program each key fob. The procedure varies slightly depending on the car manufacturer, so it's recommended to refer to your user manual for specific instructions. Certain car manufacturers prohibit you from reprogramming a key fob without having access to their equipment. Some manufacturers, like Mercedes have you go to the dealership to program the fob. This method has the disadvantage of requiring the use of a dealer's special tools, and is generally expensive. If you're looking to save money you can try using a programmer that is compatible with the vehicle you own. Check the owner's manual or an expert locksmith for details regarding how to use the device and what steps to follow. If you follow these instructions, the EEPROM programming procedure is relatively easy for the majority of car brands. To program a new car key chip, you will need a blank key with the appropriate transponder. They are readily available at hardware and auto stores. You will need to connect your ECU (electronic controller unit) to the blank key after you purchase it. You can find the ECU in the engine bay or under the dash, but it is different for each manufacturer. You can find the security code for some vehicles in your vehicle's manual or online. Transponder chip The transponder chip is a small microchip that contains an unique code. When it is inserted into an ignition, it sends a radio signal to the immobilizer system of the car. The computer of the car decodes the signal and determines whether or not it matches a valid key. If the signal does not match the computer of the car, it will disable the ignition and prevent it from beginning. This makes it difficult for thieves to steal the vehicle. This security feature is included in all modern cars. As with any electronic device the transponder chip can malfunction or fail. This is extremely frustrating since it means your car won't start. The good news is that there are some things you can do to to fix the issue and get your car back up and running. The transponder chip's battery could be replaced to fix this issue. This is usually a simple procedure that can restore your car's ability to start. Another option that is more costly is to replace the actual transponder chip. If you decide to replace the chip it is important to choose a locksmith with experience in this area. You can purchase a new key that has a transponder at any auto parts store, or even a dealership. However, you'll have to have it programmed for your specific vehicle. This can be a challenge because each car manufacturer develops their own anti-theft systems, so there is no one-size-fits-all solution for this problem. If you have an extra key that has been already programmed into your vehicle, you may be able to use it to reprogram the key that was lost. This will ensure that only you will be able to start your car and secure it from thieves. It is important to remember that a car equipped with a transponder will not start using the standard car keys. Only the original can be used. It is important to always keep at minimum two keys in working order. EZ Installer The EZ Installer enables consumers to replace their car keys without having to go to the dealer. This saves time and money. It connects directly to the vehicle's OBD port and then connects the new remote or key with the original one. automotive key programming can be used on all modern automobiles, including those that have proximity and push button start. The device is available online or at a local hardware store. It also comes with a key blade that can be cut by a hardware store, locksmith or at the dealership. The kit comes with directions and an unpaid return shipping label. It is compatible with all Ford and Lincoln models, but it does not work with all makes and models. Tom's website provides the most up-to-date compatibility information if you are not sure if this works with your particular model. Unlike traditional programming equipment the EZ Installer Pro doesn't charge “tokens” per key, making it simpler for key professionals and retailers to offer new keys. The EZ Installer Pro can be purchased at a fraction of the cost of token prices. The EZ Installer is a basic plug and play OBD device that allows you to pair a new key or remote to your vehicle in a matter of minutes by using an app that you can download on your smartphone. It is available for various models of automobiles and trucks as well as SUVs. Download the application and connect the EZ Installer to your vehicle's OBD and follow the directions. The EZ installer is linked to your vehicle VIN at the time of initial use. It is not compatible to program a vehicle that is not yours. Car Keys Express offers a money-back guarantee. EEPROM The EEPROM chip is the primary chip controlling the car's electronic and security features. Modern car keys, unlike older keys that had mechanical components, are entirely digital. They must be programmed either by an automotive locksmith, or a dealership. This process involves inserting a working spare key into the ignition, and manipulating it until the car is in programming mode. automotive key programming of reprogramming is different for each car manufacturer. It's important to check the owner's guide for your particular model. Some models require special software to program the key which is available from a dealer. In these instances, calling an expert locksmith is the best option because they can provide you with all the required tools and assist you in saving money. A professional can also make sure that your new key has been properly programmed and all functions function. To reprogram your car key you'll need a working spare key, a dremel and some tools to access the electronic controller unit (ECU). The ECU is typically located under the dashboard, but it's important to check the owner's manual to make sure. Reprogramming the ECU is straightforward. First, you must open the door to the driver's side and close it, with the exception of the one on the driver's side. Place the key into the ignition and turn the key to “On' without starting the car. Repeat this procedure a certain number of times within a short time frame which is dependent on the car. Upon completion, the car will enter programming mode and this is usually indicated by a chime that sounds or the locks cycling. When the ECU is in programming mode, it is crucial to push the lock button on the newly programmed key fob. Then, it's time to switch to the working key. You should not wait between each step or else the car will erase the other key fobs. Then, you'll need to start from scratch. You can also re-program car keys programed by a third party but be patient and cautious.