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How to Replace a Dead BMW Key FobNearly every BMW owner will need to replace their key fob's battery at some point. This is a very easy task that doesn't cost a fortune. The key fob is powered by the standard CR2032 and can be easily replaced at the local BMW dealer online, or in the hardware store.Replacement BatteryA lost or damaged key fob can be more than just an inconvenience; it can also be dangerous. The worst thing you could happen is to walk up to your vehicle, hit the unlock button, and then you notice that nothing happens. This usually means that the battery in your BMW key fob has gone out of service. Luckily, this is easy to fix at home with a replacement battery. First, you need to determine which type of battery is required for your BMW key fob, which is an elegant slant-sleek shape with a Comfort Access keys or a Smart Key CR2450. These batteries are available in auto parts and hardware shops for less than $5 per.Once you have the right type of battery, all that's left to do is swap out the old battery for the new one. Once you have inserted a new battery, be sure to close both sides of the key fob securely.Before starting, remove the metal key blade from your BMW key fob, and then use a valet key or small screwdrivers to open it up and reveal the tiny access port in the back of the fob. It is then possible to remove the back of the key fob to replace the battery that is dead. When you remove the key fob, be cautious not to damage the plastic. Wrapping a piece of tape around the end of your tool will help to prevent scratches.After replacing the battery you must reassemble and check your BMW key fob. It is now reprogrammed successfully. BMW key fob if the car locks your door and starts. If not, you may have to refer to the owner's manual or go to an authorized dealer to get assistance.Key BladeWhether you've lost your key fob or just want to replace the battery, there are a variety of places you can buy replacement BMW keys. Some online stores offer discounted rates and free shipping, making them an ideal choice for drivers who are budget-conscious. However, it is important to keep in mind that these prices might not include the cost of programming the new key into your vehicle.Certain BMW models are equipped with a "proximity key," which allows you to start or unlock the car with the touch of a button. Some models have a key made of metal hidden inside the remote, which must be put into the ignition in order to start the engine. Both kinds of BMW keys are a bit different, but the procedure to replace them is almost identical.If the battery in your BMW key fob is dead in the process, you won't be able unlock your vehicle, or use Comfort Access if it is equipped. Fortunately, you can replace the battery with a couple of easy steps. First, ensure that the windows and doors are closed. Locate the lock and unlock button on your BMW Key Fob. Press and hold the lock button until you see the electronic components inside the key fob come on however the engine remains off. Put the new battery into the key fob, and then sync the key within 30 seconds of syncing the original key.A large number of cars today, 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 car. This prevents unauthorized key-cloning or even starting. They are more expensive than standard keys because they require additional programming and advanced technology.Some BMW models come with the feature of Summon which allows you to summon your car from parking spaces or garages by pressing an icon on your key fob. Although this feature isn't offered in all models, it's an impressive function that could save you from needing to call a taxi or fend off a thief while trying to return your car.Start/Stop ButtonThe brand new BMW key has a push button built in which will start your car for you. This feature will help you save time by not having to remove your keychain from your car. However there is a small amount of additional work in using the stop/start button on an alternative BMW key fob. The first step is to ensure that the key fob has been properly paired with your vehicle. This can be accomplished by following the steps in this guide.It is time to program the key fob into your BMW. The procedure to do this may differ based on the kind of key you have. This guide will show you how to program a key fob that displays on certain models of the present. g28carkeys may require to be brought to our dealership to have the key fob programmed.Check that the key blade on the new key fob is functioning. You can test this by putting it into the keyhole and pressing the lock/unlock buttons. If it works then the BMW iDrive system will ask you to add a name to the key. You can then press the start/stop button to activate your vehicle.The next step is to schedule an appointment with Patrick BMW to have the new key fob programmed. We will require an official driver's license to verify your identity and an original copy of your car's registration. This will enable us to identify the code needed for your key fob. Based on the model, you'll either have an ordinary key fob that does not require programming, or a smart key fob with an integrated transponder that requires more sophisticated technology to program.Once the key fob is programmed and you are in a position to use it on your daily commute to Decatur. If you lose your key fob, you can contact our dealership for a service that will deactivate the key fob within the system and prevent it from being used to unlock or start your vehicle. This is a great method to stop theft if are concerned that your keys could fall into the wrong hands.ProgrammingIf the replacement BMW key fob comes with a brand new battery, but it's not working as it should, you may have to reprogram it. Our service team in San Diego will guide you through the procedure. Start by inserting your working key into the ignition and changing it from position one and back to position zero rapidly five times. Then, take the key from the ignition and hold down the unlock button (the BMW logo) on the new key. Within 30 seconds you can press the BMW logo three times. Finally press the unlock button and you will be able to hear the doors locking automatically and unlock.The process for programming the replacement BMW key fob is the same as for other BMW models, and should be completed in less than 30 seconds. Once you have finished you can begin to drive your vehicle with the new key.It is crucial to replace your BMW key battery frequently. It is recommended to replace your BMW key battery at least once per month according to how you live. Changing the key battery is simple and inexpensive. The BMW key battery is a standard size and is available at many hardware stores, or in the parts department of local dealerships.BMW vehicles are a status symbol. It can make you feel as if you've arrived in Longmont when you drive your BMW. However, BMW owners need to know that their luxury vehicle can fail just like any other. It's a good idea to know how to program your BMW key fob prior to the time you'll need it. Our service department in Princeton can provide two methods to reprogram your BMW X3. One method is for when you have a working key, but would like to add more, and the other is to start from scratch with no working key.