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How to Go About Programming a Car Key The programming of your car keys is a vital process to protect your vehicle from thieves. While car key programming allow you to program your keys however, it's best to delegate this job to an experienced locksmith. First, you must purchase an uncut car key that has the correct chip for your vehicle. They are available at most hardware and auto parts stores. Keyless entry system The keyless entry system is an excellent option to keep your vehicle safe from thieves. It works by sending out a signal that activates the car's receiver when you insert your keys in the ignition. The receiver emits an alert to unlock your car's doors. It is easy to use and practical. You can set up multiple keys to work simultaneously which is ideal for those who travel with family or coworkers. To program your new remote, make sure your vehicle is turned off and that all doors are closed. Press the lock button on the first keyfob and 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 for specific instructions. Certain car manufacturers prohibit you from changing the program of your own fobs, without access to the equipment of the manufacturer. Some manufacturers, like Mercedes will require you to visit a dealer to program the fob. This method is expensive and requires dealer-specific tools. If you're looking to cut costs you can try using a programmer that is compatible with the car you own. Refer to car key programming of your vehicle or a professional locksmith for specific details about how to use the programmer and what steps to follow. If you follow these instructions, the EEPROM programming procedure is relatively easy for the majority of auto brands. You'll require a new car key with a transponder to program the new chip. These are available at many auto and hardware stores. After purchasing the blank key, you will need to connect the programmer to your vehicle's ECU (electronic control unit). 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 be equipped with a security code, which you can get from your vehicle's owner manual or on the internet. Transponder chip The transponder is a microchip with a unique code. When it is inserted into the ignition the transponder chip transmits an electronic signal to the immobilizer system of the vehicle. The car's computer analyzes the signal to determine if it corresponds with an ignition key that is legitimate. If the signal isn't the identical it will turn off the ignition, preventing the vehicle from starting. This makes it much more difficult to steal a car from thieves. Most modern-day cars come equipped with this security feature. However, just like any electronic device the transponder chip could sometimes malfunction or fail. This can be a frustrating experience and cause your car will not start. The good news is that there are a few steps you can do to fix the problem and get your vehicle back to running. The transponder chip's battery could be replaced to correct this issue. This is typically a straightforward procedure, and will allow your car to start. A more expensive option is to replace the transponder chip. If you choose to go this route, it is crucial to choose a locksmith who has experience in this kind of work. You can buy a new key with a transponder in any auto parts shop or even a dealership. But, you'll need to program it to the specific vehicle you own. This can be difficult since every car manufacturer has their own anti-theft systems therefore there isn't a universal solution for this problem. If you have an extra key that has been already programmed to your vehicle it is possible to reprogram it to replace the lost one. This will ensure that only you are able to start your vehicle and keep it safe from thieves. However, it is important to keep in mind that a car that has a transponder chips is not compatible with a standard key and can only be started using the original. It is crucial to keep at least two keys in working in good working order. EZ Installer The EZ Installer makes it simple for people to replace their modern car keys, while avoiding the hassle and expense of visiting a dealership. It connects directly to the vehicle's OBD port, and then pairs the new key or remote with the existing one. It can be used on the majority of modern vehicles, including those with proximity and push button starting. The device is available online or at a local hardware shop. The kit also includes an instrument that can be cut by an authorized locksmith, hardware shop or dealer. The kit comes with directions and an unpaid return shipping label. It's compatible with the majority of Ford and Lincoln models. However, it may not work on all models. Tom's website has the most up-to date compatibility information if you are not sure if this works with your specific model. Contrary to conventional programming equipment, the EZ Installer Pro doesn't charge “tokens” per key, making it simpler for retailers and key professionals offer new keys. The EZ Installer Pro costs less than half the cost of a typical token cost. The EZ Installer, a straightforward plug-and-play OBD device allows you to connect the new remote or key with your vehicle within minutes using an app on your smartphone. It's available for many different cars as well as trucks and SUVs. It is easy to use. Just download the app and connect the EZ Installer to your vehicle's OBD port and follow the step-by-step directions. The EZ installer is linked to your vehicle VIN at the time of initial use. It is not compatible to program a different vehicle. It is backed by 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. Unlike older car keys, which have mechanical parts keys, modern car keys are entirely electronic and need to be programmed by an auto locksmith or dealership. This involves inserting a spare key from a working car into the ignition and manipulating it until the car is in programming mode. The process of reprogramming is different for each car manufacturer. Therefore, it is important to refer to the owner's manual for the specific model you own. Certain models require specialized software to program the key, which can be acquired from a dealer. In these instances the best choice is to contact a locksmith, as they can supply you with the necessary tools and help you save money. A professional will make sure that the new key has been programmed correctly and that its functions are working. To reprogram your car's keys, you'll need a spare working key, a dremel and some tools to access the electronic controller unit (ECU). The ECU is typically situated under the dashboard. However, it's important to check the owner's manual to be certain. The process of reprogramming is easy. You first need to open and close the door for the driver, except the one on the driver's side. Place the key into the ignition and switch the key to “On without turning the car off. This step is required to be repeated a specific number of times in the space of a few minutes that is different for each vehicle. The car will go into programming mode after completing the process. This is usually indicated by an audible tone or the locks reversing. When the ECU is in programming mode, it is important to press the lock button on the newly programmed key fob. Then, you need to quickly switch to the other working key. Do not delay between steps or your car could wipe out all other key fobs, and require you to start the process over again. You may also re-program car keys that was programmed by someone else however, be patient and watchful.