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How to Go About Programming a Car Key The programming of your car keys is an essential procedure to secure your vehicle from thieves. Some manufacturers allow you the option to reprogram your keys by yourself, but it is best to leave it to professional locksmiths. First, you must buy a blank key with the correct chip for your vehicle. These can be purchased at most hardware and auto stores. Keyless entry system The keyless entry system is a great way to keep your car safe from thieves. The system works by emitting an electronic signal which activates a receiver within your car when you insert your key in the ignition. The receiver then emits a signal that unlocks the door of your car. The system is simple to use and convenient. It is possible to create multiple keys that work simultaneously, which is great for those who share a car with friends 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. Wait until it sounds a chime, or turns its locks. Repeat this procedure for each key fob you want to program. The procedure varies slightly based on the manufacturer of your car. Consult your user manual to get specific instructions. Certain car manufacturers prohibit you from programming your own fobs without having access to the manufacturer's equipment. Some manufacturers, like Mercedes will require you to go to the dealership to program a keyfob. This is costly and requires dealer-specific tools. If you're looking to cut costs and save money, consider using a programer that is compatible with the vehicle you own. Consult your owner's manual or an experienced locksmith for information regarding how to use the programmer and the steps to follow. If you follow these steps, the EEPROM programing process for most automobile brands will be fairly easy. You'll need a blank car key that has transponder to program a new chip. They are readily available at hardware and auto stores. After purchasing the blank key, you will need to connect the device to your vehicle's ECU (electronic control unit). You can find the ECU in the engine bay or under the dash however, it differs by manufacturer. You can find the security code of certain vehicles in your vehicle's manual or online. Transponder chip The transponder chip is an incredibly small microchip with a unique code. Inserted into the ignition the transponder chip transmits a radio message to the immobilizer system of the vehicle. The computer in the car decodes the signal to determine if it is a valid ignition key. If the signal is not the same, the computer will disable the ignition to stop the car from beginning. This makes it much more difficult to steal a car from thieves. This security feature is included in modern vehicles. However, just like any electronic device, the transponder chip can sometimes malfunction or fail. This can be frustrating, as it means your vehicle won't start. The good news is that there are some things you can do to help fix the problem and get your vehicle back to running. One method to fix the problem is to replace the battery inside the transponder chip. This is a simple procedure that will restore the ability for your vehicle to start. reprogram car key is to replace the actual transponder chip. If you choose to go this route, it's important to find a locksmith who is experienced in this kind of work. You can purchase a new key with the transponder chip in most auto parts stores or the dealership. You'll need to get the key programmed to your car. It's not easy to find a solution as each car manufacturer has their own anti-theft program. You might be able to use a spare key already programmed for your vehicle to program a lost one. This will ensure that only you are able to start your car and secure it from thieves. It is essential to keep in mind that a car equipped that is equipped with a transponder won't start using an ordinary car key. Only the original can be used. Therefore, it is essential to have at the very least two working keys on the go. EZ Installer The EZ Installer makes it simple for consumers to replace modern car keys, all the while avoiding the hassle and expense of visiting a dealership. The device connects to the vehicle's standard OBD port and connects the new remote fob or key with the existing key. It is compatible with the majority of modern vehicles, including those with proximity and push button starting. The device is available online or at an local hardware store. It also comes with a key blade that can be cut at a locksmith, hardware store or at the dealership. The kit comes with directions and a pre-paid 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 particular model. Contrary to conventional programming equipment, the EZ Installer Pro doesn't charge “tokens” per key, which makes it much easier for retailers and key professionals offer new keys. The EZ Installer Pro can be purchased at a fraction of the price of tokens. automotive key programming is a simple, plug and play OBD device that lets you connect a new remote or key to your vehicle in a matter of minutes using an app on your phone. It's compatible with a wide range of vehicles or trucks, as well as SUVs. Download the app connect the EZ Installer to your vehicle's OBD and follow the steps. The EZ Installer is connected to the vehicle VIN when it is first used It is not able to be used to program an alternative 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 earlier keys with mechanical components, are entirely digital. They must be programmed either by an automotive locksmith, or an auto dealer. This involves inserting the spare key into the ignition, and then manipulating the key until the car enters the programming mode. Each car manufacturer has its own process for reprogramming. Therefore, it's essential to consult the owner's manual for the specific model you own. Some models require special software to program the key which is available from the dealer. In these cases, contacting locksmiths is the best choice, since they will supply you with all the necessary tools and assist you in saving money. A professional will also ensure that your new key is correctly programmed and that all of its functions work. To reprogram your car's key you'll need a spare working key, a dremel and some tools to access the electronic controller unit (ECU). The ECU is typically located under the dashboard, however it's important to check the owner's manual to make sure. Reprogramming is simple. First, you have to open the door to the driver's side and close it, except for the one on the driver's side. Put the key in the ignition and switch the key to “On without starting the car. This procedure is required to be repeated a specific number of times in an extremely short time, which is different for each vehicle. The car will go into programming mode after the procedure. This is usually signaled by a sound or the locks turning. Press the lock button on your newly programmed fob when the ECU has entered programming mode. Then, you must quickly switch to the second working key. You must not delay between each step or else the car will wipe out the other key fobs. You'll have to start again. You can also try reprogramming the car key that was previously programmed by someone else, but you will have to be patient and watchful.