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How to Reprogram Car Keys Typically, you'll require an active spare key and a special programming device. Also, you should have the owner's manual of your vehicle in hand. The reprogramming process will vary depending on the type of car. Start by inserting the working key into the ignition and flipping it to the on position. This will prompt the system to enter programming mode. How do I get a new key It can be difficult to get into your car when you've lost your keys. There are easy steps you can follow to reprogram your new key. It is essential to study the instructions that come with your vehicle. The process can vary slightly from vehicle to vehicle. The detailed instructions are available in the owner's manual or on the manufacturer's website. Insert the second key into your vehicle. It could be a brand new key or an existing key, but it must have a chip that is compatible with the original key. You'll then need to turn off and on the key several times until you reach security mode. After this, you'll only have only a few seconds to insert your new key. After inserting the second key, you can remove it from the ignition. This will reset the electronics of the key and allow you to enter the vehicle. Repeat this procedure to reprogram any other keys you may need. You can save money if buy a new keyfob from an auto dealer or a locksmith. Find discounts on the internet or ask around to see who will offer the best price. You should also make sure that the key fob you're buying is compatible with the vehicle you're using it in. You can ask a locksmith to check the key fob before you purchase it if you are not certain. A professional locksmith can reprogram your key with special software. They can connect their computer to the OBD port of your car (usually underneath the dashboard). They'll make use of this software to match the key with the vehicle's settings. This software will prevent the use of your key to steal your car. Although it is possible to reprogram your own key, it's generally not recommended. The reason for this is because it can be illegal and render your previous key inoperable. There are exceptions to this policy however they are not very common. Many people choose to use a locksmith when they need their car keys reset. How do you get an electronic key A key chip is embedded microchip inside your car key that sends radio signals at a low level. It signals the immobilizer to turn off and allows you to start the car. These chips are equipped with an electronic serial that is authentic and prevents auto-theft. A locksmith can give you an alternative key to replace your lost one. It is simple and quick, and could save you money in the end. Some methods on the internet claim to allow you to modify your key. However, these methods are not recommended for the typical person. These methods are risky and carry an increased chance of destroying the information stored in your car's security system. It is recommended to call an expert locksmith who has specialized equipment. These services are available at all locksmith shops and on the internet. These websites offer a variety of options for re programming keys , including those that have been programmed. However, it is important to be aware that not all key fobs will work with every car. They are specifically designed for certain car models, years and makes. They need to be hooked with the correct vehicle before they can function. The first step to reprogramming a key is to purchase a blank key that matches your vehicle's chip. These can be purchased at hardware and auto parts stores. Then, you will need to locate the ECU in your vehicle. It is located on the dashboard, but you should consult your owner's manual to confirm. You'll need to connect the diagnostic device after you have located the ECU. The device is used to communicate with the car's modules and program them to accept a new key. Once the key is reprogrammed it will function just like your previous one. The key fob can also be used to unlock doors and start your engine. This will help you save time and money on fuel, and will protect your vehicle from thieves. In these circumstances, it's a good idea to have an extra key in the event that you lose your key. Getting a key programmer You're probably aware as an enthusiast for cars that electronic keys and keyfobs are used to safeguard your vehicle from theft. If you are an experienced DIYer, you are able to program these key fobs yourself. It's important to remember that reprogramming can be difficult. Check your manual for your vehicle or a professional for help to ensure you do it correctly. If you don't, you could end up harming your expensive electronic components. The first step in programming your key is to remove the old fob. Transfer all of its internal components to the new one. A locksmith can assist you with this however, you can also buy an alternative key fob online. A new key fob will cost less than a car battery, and it's a great method to stop theft. There are various ways to program your key based on the model and year of your vehicle. For example, some brands require a particular device to connect the blank key to the ECU. Certain brands have a straightforward procedure that works for all models. Refer to the owner's manual or a professional technician before you begin the process of reprogramming to determine which tool is compatible with your vehicle. Many auto locksmiths agree that the onboard method of programming is the fastest. If you follow the correct steps the process can be completed in less than a minute. The OBD2 and EEPROM methods are more complicated and could take an hour or more to complete. These processes are also risky as there is a chance that the data on the module will be damaged. If you're looking to avoid the hassle of getting a key programmer, consider purchasing a universal remote key for your vehicle. These devices can be programmed to all makes and models and are also compatible with older vehicles. They're also less expensive than original fobs and are available at most dealerships or auto parts stores. Locating a locksmith A locksmith can reprogram a key fob, or car key that stopped working if you've lost it. This is a simple and secure method to get back on the road. You can also ask locksmiths for assistance in other things like making a brand new key or removing damaged key. Some locksmiths provide a mobile service, which helps you get the help you need. Many vehicles have upgraded transponder technology in their keys to prevent theft. This means that keys must be programmed to match the anti-theft system of your vehicle. A locksmith for cars or mechanic can accomplish this. This is a costly process that requires a special software and equipment that is specialized. DIY is a method to save money, but it's risky and could damage the system. It is recommended to always hire an experienced car locksmith for key reprogramming. They have the tools and expertise to perform this task safely and safely. They will also reduce stress and time because they do it right the first. Locksmiths can program your new key quickly and often at a lower cost. They have the tools necessary to connect to the onboard computer of your vehicle which allows them to enter programming mode. This is a faster and safer method of programming a key than waiting at the dealership. In some vehicles the onboard computer has locks on it which limits the number of times a locksmith is able to program it. These systems operate on token systems. This means that every programming attempt has to be paid for with a pre-paid token. This cost is then reflected in the price of the service. You can find the exact steps to program a keyless entry remote in your owner's guide or online. Most of these steps require the car is open and that the diagnostics port on the car be accessible. This is in order to get the correct code from the module which holds the stored key data.