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How to Go About Programming a Car Key The programming of your car keys is a vital procedure to safeguard your vehicle from thieves. While some manufacturers permit you to program your keys but it is best to leave this task to professional locksmiths. First, you must purchase an uncut car key that has the correct chip for your vehicle. They are available at most hardware and auto stores. Keyless entry system It's a great method to safeguard your car from theft. It works by emitting signals that activate the car's receiver when you put your key in the ignition. The receiver then emits a signal that unlocks the door of your car. It is easy to use and convenient. You can set up multiple keys that work simultaneously which is ideal for those who share a car with coworkers or family members. To program your new key fob, first make sure that the vehicle is turned off and all the doors are closed. Press the lock button of the first keyfob. Wait until it sounds a chime, or turns its locks. Repeat this procedure for each key fob you wish to program. The process differs slightly depending on the car's manufacturer. Refer to your user's manual to get specific instructions. Certain car makers prohibit you from programming your own fobs without access to the manufacturer's equipment. Some, like Mercedes requires that you go to a dealership to have a key fob programmed. This approach isn't ideal because it requires the use of dealer-specific tools, and it's generally expensive. If you want to save money, try using a programmer that works with your car. Consult the owner's manual, or a locksmith, for more details on how you can utilize a programmer. If you follow these instructions, the EEPROM programming procedure will be fairly easy for most automobile brands. You will require a new car key that has transponder to program a new chip. You can find these at a variety of auto and hardware parts stores. You will have to connect your ECU (electronic controller unit) to the blank key after you purchase it. The ECU is located in the engine bay, beneath the dashboard or on the dashboard depending on the manufacturer. Some vehicles will need to be equipped with a security code and you can find it from your vehicle's owner manual or on the internet. Transponder chip The transponder is a microchip with an individual code. When it is inserted into an ignition, it relays a radio signal to immobilizer system of the car. The computer in the car decodes the signal to determine if it matches a valid ignition key. If the signal doesn't match, the car's computer will disable the ignition and prevent it from beginning. This makes it more difficult to steal a car from thieves. The majority of modern cars are equipped with this security feature. But, as with any electronic device the transponder chip could sometimes 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 fix the problem and get your car back up and running. The transponder chip's battery could be replaced to resolve this issue. This is usually a simple procedure, and can restore your car's ability to start. A more expensive option is to replace the actual transponder chip. If you decide to take this route, it's important to find a locksmith who is experienced with this type of work. You can purchase a new key with the transponder chip in most auto parts stores or even the dealership. However, you'll need to have it programmed for the specific car you have. It's not easy to figure out a solution since every manufacturer has their own anti-theft program. If you have an extra key that has been already programmed into your vehicle you might be able to reprogram it to replace the lost one. This will make sure that only you are able to start your vehicle and keep it safe against thieves. It is crucial to keep in mind that a car equipped with a transponder will not start using the standard car keys. Only the original can be used. Therefore, it is crucial to have at the very least two working keys on hand. EZ Installer The EZ Installer permits users to change their car keys without having to go to the dealer. This saves time and money. The device connects directly to the vehicle's OBD port and then connects the new remote or key with the current one. It is compatible with most modern vehicles including those that have proximity and push button starting. The device can be purchased online or at a local hardware shop. The kit also includes a keyblade that can be cut by a locksmith, hardware shop or dealership. The kit comes with instructions and a prepaid return shipping label. It is compatible with the majority of Ford and Lincoln models, but does not work with all brands and models. If you're not certain whether it's compatible with your particular model, visit Tom's website for the most current compatibility information. Unlike traditional equipment for programming, 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 can be purchased for less than half the cost of tokens. The EZ Installer is a simple, plug and play OBD device that allows you to connect a new remote or key to your vehicle in a matter of minutes with an app on your smartphone. It's compatible with a variety of cars, trucks and SUVs and is simple to use. Download the application and connect the EZ Installer with your vehicle's OBD and follow the directions. The EZ Installer will be linked to the vehicle VIN at the time of first use, so it can't be used to program an alternative vehicle. It comes with a full money back guarantee from Car Keys Express. EEPROM The EEPROM is the main chip that controls the car's electronic and security features. Unlike older car keys, with mechanical parts keys, modern car keys are almost entirely electronic and have to be programmed by an automotive locksmith or dealership. This involves inserting a working spare key into the ignition and manipulating it until the car enters programming mode. Each manufacturer has a different reprogramming procedure. Therefore, it's important to consult the owner's manual for your specific model. Some models require special software to program the key that can be purchased from a dealer. In these instances the best choice is to call a locksmith, as they will be able to provide you with the tools needed and help you save money. A professional can also make sure that your new key is properly programmed and all functions function. To reprogram your car key, you'll require a spare key that works and a dremel tool and a few tools to access the electronic control unit (ECU). The ECU is usually located under the dashboard. However, it's important to review your owner's guide to be sure. The reprogramming process is very easy. First, you have to open the door for the driver and close it, excluding the one on the driver's side. Then, insert the key into the ignition and turn it to the 'On' position without starting the engine. Repeat this process a specific number of times within the timeframe that varies based on the vehicle. After completion, the vehicle will enter programming mode, and this is typically indicated by a chime that sounds or the locks cycling. When cut and program car key is in programming mode, it is crucial to hit the lock button on the newly programmed key fob. Then, you must 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 will require you to start the process again. You can also try reprogramming a key for your car that was previously programmed by another person however, you'll have to be patient and cautious.