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How to Replace a Dead BMW Key Fob Most BMW owners will need to change their key fob batteries at some time. Fortunately, this is very easy to do and won't cost you a lot. The key fob uses an ordinary CR2032 battery and can easily be replaced at a hardware store online, or a local BMW dealership. Replacement Battery A dead key fob can be more than just an inconvenience; it could also be dangerous. You don't want to go towards your vehicle, press the unlock button, only to then find that nothing happens. This is usually a sign that the battery inside your BMW key fob has died. Fortunately, it is simple to fix at home by using an alternative battery. The first step is to determine what kind of battery your BMW key fob needs either one of the CR2450 (Smart Key) or a C2032 (Comfort Access/sleek slant shaped keys). These batteries can be found at hardware and auto parts stores for less than $5 each. Once you have the right type of battery, it's an easy task to swap out the old one with the new one. Once you have inserted the new battery, make sure to seal each half of the key fob securely. Before you begin taking the key blade from the BMW key fob first, then use a valet key or small flat screwdriver to lift it open and reveal the small access port on the back of the fob. It is then possible to remove the back of the key fob to replace the battery that has died. Be careful not to scratch the plastic around the key fob when you remove it. Wrapping a piece of tape around the end of your tool can help to prevent scratches. Once you have replaced the battery, you can reassemble your BMW key fob and test it. It is now reprogrammed successfully. BMW key fob if your door locks and your car starts. If you are unable to do that then go through the owner's manual for your vehicle or go to a BMW dealer for help. Key Blade There are numerous locations to purchase replacement BMW keys regardless of whether you've lost the key fob, or just need to replace your battery. Some online retailers offer free shipping and reduced rates, which makes them a great option for budget-conscious motorists. But, it's important to note that these prices may not include the cost of programming the new key into your car. Some BMW models include the “proximity-key” that allows you to unlock or start the car by pressing the button. Some BMW models have a metal “proximity key” hidden in the remote control that must be inserted into ignition to start the car. Both kinds of BMW keys are a little different, but the process for replacing them is nearly identical. If the battery in your BMW key fob dies, you will not be able to unlock your vehicle or use Comfort Access if it is equipped. It's possible to replace the battery in a few easy steps. First, make sure that the doors and windows are closed. Locate the lock and unlock button on your working BMW Key Fob. Press and hold the unlock button until the electronics inside the key fob come on, but the engine remains off. Finally, put the new battery into the key fob, and sync it within 30 seconds of sync your original key. A lot of modern cars, including BMWs, are equipped with Smart Keys that can unlock and start the vehicle without using a traditional key. These keys have transponders, which transmit a unique code to the immobilizer system of the vehicle. This stops unauthorized key cloning or even starting. These keys are more expensive than standard key fobs because they require additional technology and programming. Some BMW models also have a special feature called Summon, which lets you hit a button on the key fob to summon your car to pick you up from an area of parking or garage. The feature is not available on all models but it's a useful feature that can help you avoid having a taxi come and pick you up or fighting an intruder to get it back. Start/Stop Button The brand new BMW key comes with an integrated push button which will start your car for you. This feature can help you save time as it eliminates the need to remove your keychain from your car. However, there is a some extra work when using the starter/stop button on the replacement BMW key fob. The first step is to make sure that the key fob is correctly paired to your vehicle. This can be accomplished 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 depending on what kind of key you have. This guide will explain how to program a display keyfob for some modern models. Older BMW models may need to be brought to our dealership to get the key fob programmed. The process begins by checking that the key fob is working key blade. Check it by inserting the key fob into the keyhole and pressing the lock/unlock buttons. If it works it will be displayed on the BMW iDrive system will ask you to assign a name on the key. After that, hit the Start/Stop button to activate your car. Then, you'll need to make an appointment at Patrick BMW to program the new key fob. To verify your identity, we need to see an official driver's license and a copy the registration of your vehicle. This will enable us to determine the code needed for your key fob. You'll either have a standard key fob that does not require programming, or a key fob smart equipped with a transponder that requires more advanced technology. Once the key fob is programmed, you are able to begin to use it for your daily commute on the roads of Decatur. You can also contact us in the event that you have lost your key fob. bmw x5 key replacement will remove it within the system to stop it from being able to unlock or start your vehicle. This is a great way to stop theft if are concerned that your keys might get into the wrong hands. Programming If your replacement BMW key fob has a brand new battery, but it's not working as it should, you may require reprogramming it. The service staff at our dealership in San Diego can help walk you through the steps to do this. Start by inserting the working key into the ignition, turning it to position one and back to zero quickly five times. Next, take the key from the ignition and press the unlock button (the BMW logo) on the new key. Within 30 seconds, you should press the BMW logo 3 times. Finally release the unlock button, and you should be able to hear the doors locking automatically and unlock. The procedure for programming the replacement BMW key fob is similar to that for other BMW models, and can be completed in no more than 30 seconds. Once you've finished, you can start your car with the new key. It's important to replace your BMW key battery regularly. You should replace the battery in your BMW key at least once a month, depending on how you live. Change the battery of your key is easy and cheap. The BMW key battery is of standard size and you can find it in most hardware stores, or in the parts department of the local dealership. Being the owner of a BMW vehicle is a sign of status and it's like you've arrived when you take a drive through Longmont in your BMW. However, BMW owners need to know that their luxury vehicle is susceptible to breakdowns like any other. It is a good idea to know how to program the BMW key fob before you ever require it. Our service department at Princeton will show you how to reprogram your BMW X3. One method is if you have a working key and want to add more and the second is to start from scratch with no working key.