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How to Go About Programming a Car Key Key programming for your car is a crucial step in protecting your car against thieves. While some manufacturers permit you to reprogram your keys on your own however, it's best to delegate this task to a professional locksmith. First, you need to purchase a blank key with the appropriate chip for your vehicle. These are available at most hardware and auto stores. Keyless entry system The keyless entry system is a great option to keep your vehicle safe from thieves. It works by sending out signals that activate the car's receiver when you insert 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 create multiple keys that can be used simultaneously which is ideal for those who travel with friends or family members. To program your new key fob, make sure that the vehicle is off and all doors are shut. Press the lock button of the first keyfob and wait until it chimes, or turns its locks. Repeat this process to program each key fob. The procedure is different for each car manufacturer, so it's best to consult your owner's manual for specific instructions. Some car manufacturers prohibit you from programming a key fob, without having access to their equipment. Some manufacturers, like Mercedes, require you to visit a dealer to program the fob. This approach isn't ideal because it requires the use of a dealer's specialized tools, and it's generally expensive. If you're looking for ways to save money, try using a programer that is compatible with the vehicle you own. Refer to the owner's manual of your vehicle or an expert locksmith for details regarding how to use the programmer and the steps to follow. If you follow these guidelines then the EEPROM programing process for a majority of car brands will be relatively easy. You will require a new car key with transponder to program a new chip. These are available in a variety of hardware and auto parts stores. You'll need to connect your ECU (electronic controller unit) to the blank key after purchasing it. The ECU is located in the engine bay, under the dashboard or on the dashboard, depending on the manufacturer. Certain vehicles will require you to have a security code set that you can obtain from the owner's manual of your vehicle or online. Transponder chip The transponder chip is a small microchip that contains a unique code. When it is inserted into an ignition, it sends a radio signal to immobilizer system of the car. The car's computer then deciphers the signal and determines if it is a valid key. If the signal does not match the car's computer, it will turn off the ignition and stop it from beginning. This makes it more difficult to steal a car from thieves. This security device is standard in most modern cars. Like all electronic devices, the transponder chip could 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 things you can do to help solve the issue and get your vehicle back on the road. One solution to the problem is to replace the battery in the transponder chip. This is usually a simple procedure that can restore your car's ability to start. The more costly option is to replace the actual transponder chip. If you decide to go this route, it's essential to find a locksmith who has experience with this type of work. You can purchase a brand new key that has transponder chips at many auto parts stores or the dealership. You'll need to have the key programmed for your vehicle. It's not easy to figure out a solution since every manufacturer has their own anti-theft program. You may be able use a spare key already programmed for your vehicle to reprogram a lost one. This will make sure that only you are able to start your car and secure it from thieves. However, it is important to remember that a car equipped with a transponder chip cannot be operated with a standard key, and will only start with the original. It is essential to keep at least two keys in good working in good 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. The device is connected directly to the vehicle's OBD port and then connects the new key or remote with the existing one. reprogram car key is compatible with all modern vehicles, including those equipped with proximity and push button start. The device is available online or at the local hardware store. It also includes a key blade which can be cut at the hardware store, a locksmith or at the dealership. The kit includes instructions and an unpaid return shipping label. It works with most Ford and Lincoln models, but it does not support all makes and models. Tom's website provides the most up-to-date compatibility information if not sure if this works with your particular model. In contrast to traditional programming equipment, the EZ Installer Pro does not charge per key “token” fees which makes it more affordable 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 basic plug-and-play OBD device allows you to connect a new remote or key to your vehicle in a matter of minutes by using an application on your smartphone. It's available for a variety of vehicles and trucks, and is easy to use. Download the app connect the EZ Installer to your vehicle's OBD port, and follow the step-bystep instructions. The EZ Installer will be linked to the vehicle VIN at the time of first use and can't be used to program a different vehicle. car key programming is backed by a 100% money-back guarantee from Car Keys Express. EEPROM The EEPROM is the main chip that controls the car's electronics and security features. Unlike older car keys, that have mechanical components keys of the modern day, modern keys are entirely electronic and need to be programmed by an automotive locksmith or dealership. This process involves inserting a spare key from a working car into the ignition, and manipulating it until the car enters programming mode. Each car manufacturer has a different method of reprogramming. It is important to read the owner's guide for your model. Some models require special software to program the key, which can be acquired from a dealer. In these instances the best option is to call a locksmith, since they can provide you with the necessary tools and assist you in saving money. A professional will ensure that the new key is properly programmed and it functions as intended. 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 will usually be located under the dashboard. However, it is important to check your owner's guide to be sure. The reprogramming process is very simple. 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. Put the key in the ignition and turn the key to “On without turning the car off. Repeat this process a specific number of times in an unspecified time period that varies based on the vehicle. The car will enter programming mode after completing the procedure. This is usually indicated by a sound or the locks cycling. Once the ECU is in programming mode, it's important to hit the lock button on the newly programmed key fob. You must then quickly switch to the working key. You must not be patient between each step, otherwise the car will wipe out the other key fobs. You'll have to start again. You can also re-program car keys programed by a third party however, be patient and cautious.