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Hidden Functions of a BMW Key Fob You probably know how to lock your BMW by using the key fob. However, BMW fobs have hidden functions that could surprise you. Here are a few tips to use the BMW key fob. Some of these tips require only a little technical know-how and others are more challenging. Security The BMW key fob comes with an embedded computer chip which corresponds to a specific code that is stored in the security module of the car. This prevents any unauthorized access to your vehicle. lost bmw key, no spare helps to keep your vehicle safe by preventing unauthorized engine starting. The system is constantly changing to keep up with new threats. The system has also added driver profiles to your fob. Each profile stores personalized settings for the position of the seat and radio presets, so a specific driver's preferences will be applied when the fob is used to unlock the car. These features offer peace of mind to drivers who are worried about their vehicle being stolen. Some thieves still find ways to bypass the security features of keyless systems. For example an upcoming video showed the theft of a BMW 1M being stolen without keys in less than three minutes. In this case, the thieves made use of a special relay device to hack into the identifying signal that the keyfob transmits to the car. BMW key fobs utilize an algorithm that rolls to safeguard the car from unauthorized cloning as well as other relay attacks. They also use a unique algorithm to make sure that only authorized users are able to use them. Furthermore, the BMW key fob contains an electronic key that is powered by a battery. This makes it more difficult for criminals to crack. Because of this, BMW key fobs are among the most secure and practical alternatives for owners of vehicles. These keys are also much cheaper than mechanical ones. BMW key fobs, in contrast to traditional keys can be programmed to work with various vehicles. Another feature that enhances the security of a BMW key fob is an electronic immobilizer. This feature shuts off the starter motor if the key is not in range. It also has an anti-theft feature that stops the car from being started if the wrong password is entered into the keyfob iDrive system. Another security measure to consider is a physical button on the back of a BMW key fob. The button can be pressed in the situation of an emergency, like if the vehicle's doors are locked. This button can be used to turn on the manual backup system in the event that the BMW's automatic locking system is not working. Convenience BMW automobiles are among the most expensive available, but they also come with many extra convenience features. You can use your keyfob to lock and unlock your vehicle as well as disable BMW sensors and start the engine. The key fob is loaded with useful functions however, it's easy to ignore some of the most interesting ones. You can use your key fob on a modern BMW to control the trunk, fold exterior mirrors, and turn on the light. If you're a business proprietor, this feature can be extremely beneficial because it lets you monitor your company car from anywhere at any time. The key fob is also equipped with an LCD that is touch-sensitive and displays important information like the battery status of the car and its remaining range. This is an extremely useful feature, particularly if you have a long commute and frequently run out of gas or leave the vehicle unattended for prolonged periods of time. Utilizing your key fob to monitor the car's gas and battery levels can help you avoid any expensive repair bills. A BMW key fob can also serve as an in-car GPS. It can start navigation automatically after pressing the key. This feature is ideal for long journeys, or when traveling with a group of friends. The key fob can also be used to start the car, or turn on the air cooling. This is a practical and simple method to ensure your vehicle's comfort when you're on the road. If you own multiple BMW keys You can program them to work together. It's as simple as: first, make sure that your key fob is working. Place the key in the ignition, and quickly shift it from position zero to position one five times. After the syncing process has been completed, you should hear the doors locking and unlocking. Take the key off, and repeat these steps for any other keys you want to connect to your car. Versatility You may have a BMW equipped with a keyless entry system. These systems let you lock and unlock your car without the need to remove the traditional key. You can also start your car by pressing the fob against the special sensor located near the engine. You'll want to make sure that your BMW key fob is as secure as it can be. It should be kept in a secure place in a place where it isn't easily stolen will help, but so will protecting it from moisture. Fobs are designed to be waterproof. However, the best way to keep yours safe is to keep it away from the direct sunlight and avoid using it in extreme temperatures or rain. The blade can be removed and is one of the most cool features of the BMW keyfob. This lets you use the internal key in emergencies if your exterior keys have been lost or broken or damaged, or to avoid carrying additional keys around with you. It's on some BMW fobs in a location that is easy to reach, but others may require you to remove the cap, which is made of plastic, or remove the interior trim. While you can purchase an BMW fob replacement at the dealership, you shouldn't buy used or aftermarket fobs online or through eBay. For security reasons, BMW-certified replacement fobs must be manufactured in the dealership based on the VIN number of your specific vehicle. This stops criminals from stealing the original fob and using it to gain access to your vehicle. If you require an replacement BMW key fob, you'll need to bring your working key into the dealership to get it changed. You can do it yourself if already have the key that works. Insert the working key into the ignition and then quickly turn it five times from position 1 to 5. Press the unlock button three times on the new key fob and the doors will automatically lock and unlock. Battery Life The battery in a key fob is tiny and will not last for long. In fact, it's a good idea to replace the battery every 18 months or so. This stops it from resetting and also ensures that the key fob is delivering the highest performance possible. Fortunately replacing the battery in the key fob is fairly simple and doesn't affect its programming. The majority of BMW key fobs are powered by a standard CR2032 battery, a 3 volt lithium coin cell battery that is known for its long-lasting and efficient performance. For the BMW 3 Series spanning from 2012 to 2019 However, the key fob uses a more advanced CR2450 battery, which comes with an increased diameter that can accommodate the additional features that are offered by the model. The BMW key fob is fitted with a unique identifier that is constantly changing. This feature is intended to prevent third-parties from hacking into your vehicle and then cloning your key fob. In reality, it's almost impossible for anyone to clone your BMW key fob, regardless of whether you lose it or have it stolen. The key fob also has an ejectable key blade inside that can be used to open the door or at least unlock the car's interior. This feature is particularly beneficial when you're traveling on an extended trip and wish to leave the key fob inside the car to ensure it is safe from theft. BMW dealers are able to offer an anti-theft shield for the key fob for a reasonable price to those who are concerned about the security of the key fob. This simple device will help guard the key fob against unwanted attention, and it's a good idea to have one for any vehicle you own. BMW dealerships are your only option to purchase authentic BMW products, which have been prepared specifically for your vehicle based on its VIN. Key fobs are guaranteed to function correctly because they've been programmed and tested by the manufacturer. The key fobs are also covered by a warranty that covers any problems that might arise. This includes defects in the materials or workmanship.