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How to Go About Programming a Car Key Key programming for your car is an essential step for safeguarding your car from thieves. While some manufacturers permit you to program your keys, it's best to leave this job to an experienced locksmith. You must first purchase a blank car key that includes the correct vehicle chip. These can be purchased in most auto and hardware stores. Keyless entry system It's a great way 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 keys in the ignition. The receiver then emits the signal to unlock the door of your car. The system is easy to use and practical. You can create multiple keys that work simultaneously which is ideal for those who share a vehicle with coworkers or family members. To program your new remote, make sure the vehicle is turned off and that all doors are shut. Press the lock button of the first keyfob and wait until it sounds a chime or the lock is turned off. Repeat this procedure for each of the key fobs you wish to program. The procedure varies slightly based on the car's manufacturer. Refer to your user's manual for specific instructions. Certain car manufacturers prohibit you from programming your own fobs without having access to the manufacturer's equipment. Others, like Mercedes requires that you visit a dealer to get your key fob programmed. This approach has the disadvantage of requiring the use of a dealer's special tools, and it is generally expensive. If you're looking to save money and save money, consider using a programer that is compatible with the car you own. Check the owner's manual or an expert locksmith for information regarding how to use the device and what steps to follow. If you follow these guidelines and follow the steps, the EEPROM programing process for a majority of automakers will be simple. You will need a blank car key that has a transponder to program a new chip. These are available at many auto and hardware stores. After you purchase the blank key, you'll need to connect the device to your vehicle's ECU (electronic control unit). You can locate the ECU in the engine bay or under the dash but it varies by manufacturer. Some vehicles will need to have a security code set and you can find it from the owner's manual of your vehicle or on the internet. Transponder chip The transponder is a microchip with a unique code. Inserted into the ignition the transponder chip transmits an electronic signal to the immobilizer system of the car. The computer in the car interprets the signal to determine if it corresponds with a valid ignition key. If the signal isn't the identical, the computer will disable the ignition to stop the car from beginning. This feature makes it much difficult for thieves to steal a vehicle. This security device is found in modern vehicles. However, just like any electronic device the transponder chip may sometimes malfunction or fail. This can be extremely frustrating as it means that your car won't start. The good news is that there are a few steps you can do to help to fix the issue and get your vehicle back on the road. One way to fix the problem is to replace the battery in the transponder chip. This is a relatively simple procedure which will allow the capability of your vehicle to start. The more costly option 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 purchase a brand new key with a transponder chip at most auto parts stores, or the dealership. But, you'll need to get it programmed to the specific vehicle you own. This can be difficult because each car manufacturer develops their own anti-theft system, so there's no universal solution to this issue. You could be able to utilize a spare key programmed for your vehicle to reprogramme an old one. This will ensure that only you are able to start your car and secure it from thieves. However, it is important to remember that a vehicle with a transponder chip cannot be operated with a standard keys and can only be started with the original. Therefore, car key programming is essential to always have at least two functioning keys on the go. EZ Installer The EZ Installer allows users to change their car keys without having to go to the dealer. This saves them time and money. The device connects directly to the vehicle's OBD port, and pairs the new remote or key with the original one. It is compatible with the majority of modern vehicles, including those that have proximity and push button starting. The device can be bought online or at an 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 a prepaid return shipping label. It works with most Ford and Lincoln models, but does not support all makes and models. Tom's website contains the most up-to date compatibility information if not sure if this works with your specific model. In contrast to 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 costs less than half of the typical token cost. The EZ Installer is a basic plug and play OBD device that allows you to connect a new key or remote to your vehicle in just a few minutes with an app on your smartphone. It's compatible with a variety of cars as well as trucks and SUVs. It is easy to use. Simply download the application, connect the EZ Installer to your vehicle's OBD port, and follow the step-bystep instructions. The EZ Installer is linked to the vehicle's VIN upon first use and can't be used to program another vehicle. It comes with a full money back guarantee from Car Keys Express. EEPROM The EEPROM is the primary chip that controls the car's electronic and security features. Modern car keys, unlike older keys that had mechanical components, are entirely digital and must be programmed by an automotive locksmith or dealership. This involves inserting the spare key into the ignition, and manipulating the keys until the car enters the programming mode. The process of reprogramming is different for each car manufacturer. It's important to check the owner's guide for the model you own. Some models require special software to program the key, which can be acquired from a dealer. In these cases, the best option is to call a locksmith, as they can supply you with the tools needed and help you save money. A professional will make sure that the new key is programmed correctly and that it functions as intended. To reprogram your car's key, you'll need a working spare key, a dremel and some tools to access the electronic controller unit (ECU). The ECU is usually located under the dashboard, but it is important to read the owner's manual to make sure. Reprogramming the ECU is straightforward. You first need to open and close the door for the driver and not close the door on the driver's side. Next, insert the key into the ignition and move it to the “On position, without triggering the engine. This step is required to be repeated a specific amount of times within a short period of time and is different for each vehicle. After completion, the vehicle will enter programming mode, and this is usually indicated by a chime that sounds or the locks chiming. Press the lock button on your newly programmed key fob after the ECU has entered programming mode. Then, you must quickly switch to the working key. Do not wait between steps, or your car may wipe out all of the other key fobs and need you to begin the process again. You can also try reprogramming a car key that was previously programmed by a different person, but you will need to be patient and cautious.