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How to Replace a Dead BMW Key Fob Most BMW owners will require changing their key fob batteries at some time. Fortunately, this is very simple to do and will not cost you a fortune. The key fob is powered by a standard CR2032 battery that can be repaired at a hardware store or online, or the local BMW dealership. Replacement Battery A lost key fob could be more than a nuisance; it could be a risk. You don't want to go towards your vehicle, press the unlocking button, and then find that there is no response. This is usually a sign that your BMW key fob battery is dead. It is a simple fix that you can do at home by replacing the battery. First, you must identify the type of battery that is needed for your BMW key fob, which is a Comfort Access/sleek slant shape keys or a Smart Key CR2450. These batteries can be purchased at auto parts and hardware stores for under $5 each. If you have the correct type of battery, it's simple to swap out the old battery with the new one. Once you've inserted a new battery, be sure to close both sides of the key fob securely. Before beginning taking the key blade from your BMW key fob, and then use a valet key or small flat screwdriver to lift it open and reveal the small access port in the back of the fob. Then, you can remove the back of the key fob to replace the dead battery. When removing the key fob, you must be careful not to scratch the plastic. Wrapping a small piece tape over the end of your tool can help prevent any scratches. After replacing the battery, you can now put back together your BMW key fob and test it. If your door locks and opens the car, you've successfully reprogrammed your BMW key fob! If not, you may need to consult your owner's manual or visit an authorized dealer to get assistance. Key Blade If you've lost your key fob or want to replace the battery, there are a variety of places you can buy replacement BMW keys. Certain online retailers offer discounted rates and free shipping, which makes them an ideal choice for drivers who are budget-conscious. It is important to keep in mind that these prices don't include the cost of programming the new key into your vehicle. Certain BMW models come with a “proximity key,” which allows you to unlock or start the car with the touch of the button. Other models have a metal key hidden inside the remote, that needs to be placed into the ignition to turn on the engine. The procedure for replacing the key is identical for both kinds of BMW keys. When the battery in your BMW's key fob dies, you won't be able to unlock your vehicle or use Comfort Access, if equipped. Fortunately, it's possible to replace the battery in a few easy steps. First, ensure that your vehicle's doors and windows are closed. Locate the lock and unlock button on your BMW Key Fob. Press and hold the unlock button until the electronics on the key fob turn on, but the engine remains off. Finally, insert the new battery into the key fob and sync it within 30 seconds of syncing your original key. Smart Keys are available in numerous cars as well as BMWs. They can be used to unlock and start a car without the traditional key. These keys are equipped with transponders that transmit an individual code to the immobilizer system of the car. This stops unauthorized key cloning or even starting. These keys are more expensive than standard key fobs as they require additional technology and programming. Certain BMW models also have an extra feature, called Summon, which allows you to press a button on your key fob and get your car to come and take you to an area of parking or garage. Although this feature isn't available in all models, it's an impressive feature that could help you avoid needing to call a taxi or fend off a thief while trying to get your car back. Start/Stop Button A new BMW key comes with a built-in push button that can start your car for you. This feature is a fantastic method to save time and avoid having to get out of the car to use your keychain. The starter/stop button isn't easy to use on the BMW key fob replacement. The first step is to ensure the key fob is paired with your car. This can be done by following the steps in this guide. It is now time to set up the key fob for your BMW. The process will vary slightly according to the type of key you own. This guide will show you how to program a display keyfob for certain modern models. Older BMW models may require to be brought to our dealer to have the key fob programmed. The process will begin by checking that the new key fob is working key blade. Test it by putting the key fob into the keyhole and pressing the lock/unlock button. If it works, BMW iDrive will ask you to give the key an id. Then, press the start/stop button in order to activate your vehicle. You will then need to make an appointment at Patrick BMW to program the new key fob. We will need a valid driver's licence to verify your identity as well as a copy of the car's registration. This information will allow us to determine the right code for the key fob. You'll either have a standard key fob that does not require programming or a key fob smart with a transponder integrated that requires more advanced technology. Once the key fob has been programmed, you are able to begin using it for your daily commute along the Decatur roads. You can also contact us if have lost your keyfob. We will deactivate it within the system to stop it from being capable of unlocking or starting your vehicle. If you are concerned that your keys might get lost to the wrong person it is a good solution to stop theft. Programming You may have to reset your replacement BMW keyfob in case it has a newer battery but still doesn't work properly. Our service team in San Diego will guide you through the procedure. Begin by inserting the working key into the ignition. Turn it five times quickly from position zero to one. Then, remove the key out of the ignition and hold down the unlock button (the BMW logo) on the new key. Within 30 seconds, you should press the BMW logo three times. Then press the unlock button and you will hear the doors lock automatically and unlock. The process of programming a replacement BMW keyfob is the exact same as the process for other BMW models. It will take less than 30 seconds to complete. After replacement bmw key 've completed it, you can turn on your engine and use the new key to start your car. It is crucial to replace the BMW key battery on a regular basis. You should replace the battery in your BMW key at least once a month, depending on how you live. It's cheap and simple to replace the battery in your key. The BMW key battery comes in an standard size and is available at many hardware stores, or in the parts department at local dealerships. Being the owner of a BMW vehicle is a status symbol and it's like you've arrived drive down the streets of Longmont in your BMW. BMW owners need to be aware that their expensive vehicle can break down like any other. It's a good idea know how to program your BMW key fob before you ever need it. Our service department in Princeton can provide two ways to reprogram your BMW X3. One method is for when you have a working key, but want to add more or change it, while the other is to start from scratch with no working key.