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Hidden Functions of a BMW Key Fob If you own a BMW, chances are you are familiar with how to lock and unlock your car with the fob of your key. BMW fobs may have some hidden functions that you might not be aware of. Here are a few suggestions for using your BMW key fob. Some of these tips are easy to master, while others require a bit of technical know-how. Security A BMW key fob is equipped with an embedded computer chip that is linked to a code in the car's security module. This blocks unauthorized access to the vehicle. It helps to keep your vehicle safe by preventing unauthorised starting of the engine. The system is constantly evolving to keep up with possible threats. The system has also added driver profiles to your fob. Each profile is able to store personal settings for radio and seat position presets, so a specific driver's preferences are applied when the fob is used to unlock the car. These features provide drivers with peace of mind when they are worried about their car being stolen. However, despite these measures, some thieves find ways around the security features of keyless entry systems. For instance an upcoming video showed an BMW 1M being stolen without keys in only three minutes. In this instance, the thieves used a relay device to hack into the signal sent by the keyfob to the car. BMW key fobs utilize a rolling code to protect the car from unauthorized cloning and relay attacks. They also use an exclusive algorithm to ensure that only authorized users are allowed to use them. The BMW key fob also has a battery powered cryptographic key that makes it difficult for criminals to hack. BMW key fobs are therefore among the most secure and convenient options for vehicle owners. Additionally they are more affordable than mechanical keys. Moreover, unlike traditional keys, BMW key fobs can be programmed to work with a variety of vehicles. A BMW key fob can be improved in security through an electronic immobilizer. This feature stops unauthorized access to the car's engine by preventing the starter motor if the key is not in the vehicle's range. Also, it has an anti-theft function that stops the car from being started if the wrong password is entered into the keyfob system of the iDrive. Another security measure to consider is a physical button on the back of the BMW key fob. This button can be pressed in the case of an emergency for instance, if the car's doors are locked. Similarly, this button can be used to trigger an automatic backup system in the event that the BMW's automatic lock fails engage. Convenience BMW cars are among the most expensive on the market however, they also have lots of additional convenience features. Apart from locking and unlocking your car and allowing you to use your key fob to control your windows, disable BMW sensors and even start the engine. The key fob is loaded with useful functions however, it's easy to miss some of the most fascinating ones. You can use your key fob on a modern BMW to control the trunk, fold out exterior mirrors and turn on the light. If you're a business owner this feature can be extremely beneficial because it lets you check on your company vehicle anytime, from anywhere. The key fob also has a touch-sensitive display that shows important information like the status of the battery of the vehicle as well as its remaining range. This is a very useful feature, especially if you have a long commute and frequently run out of gas or leave the vehicle unattended for prolonged periods of time. You can avoid costly car repairs by using your key fob as a gauge for checking the gas and battery levels. A BMW key fob can also serve as an in-car GPS. If you program it with the location of your choice, it can automatically start navigation to that location when the key is hit. This is a wonderful option for long journeys or when traveling with a group of friends. You can also make use of the key fob to start the engine, or turn on the air conditioning in your car and it's a great method to keep your car comfortable on a long road journey. If you have multiple BMW keys, you can program them to work together. It's simple: first, make sure that your key fob works. Then, you can insert the key into the ignition, and then move it to position one, then return to position five times in a row. The doors will unlock and lock when the syncing is complete. Remove the key and repeat the steps for any other keys you wish to connect to your vehicle. Versatility You may have an BMW equipped with a keyless entry system. These systems let you lock and unlock your vehicle without the need to take out the traditional key. You can also start your car by tapping the fob on the sensor located close to the engine. This is why you'll need to ensure that your BMW key fob as secure as you can. Keeping it in a safe location that it won't be easily taken away as will protecting it from water. Fobs are made to be waterproof. However, the best way to ensure yours safe is to keep it out of direct sun and avoid using it in extreme temperatures or when it rains. One of the most exciting characteristics of a BMW key fob is that it comes with an open key blade that can be removed. You can utilize the internal key if you've lost or broken your keys on the outside, or if you don't need to carry a bunch of keys. The button is found on some BMW fobs, and is accessible. Other BMW fobs could require you take off the interior trim piece or open a plastic cap. You can purchase a replacement BMW fob from a dealer, but don't purchase used or aftermarket ones online or via eBay. BMW-certified replacement fobs are created at the dealership using your vehicle's VIN. This is to protect your vehicle. This will prevent thieves from getting hold of your original key fob, and using it to gain entry to your vehicle. If you need a replacement BMW fob, bring your current key to the dealership to have it reprogrammed. You can do it yourself if you have the working key. Insert the working key into the ignition, and then quickly turn it five times from position 1 to position 5. Press replacing bmw key on the new key fob and the doors will automatically lock and unlock. Battery Life The battery of a key fob is tiny and will not last forever. It is recommended to replace the battery about every 18 months. This will prevent it from resetting and ensure the keyfob is providing the best performance possible. Fortunately that replacing the key fob battery is relatively easy and doesn't affect its programming. The majority of BMW key fobs are powered by a standard CR2032 lithium coin cell. This battery is known for its durability and efficiency. The key fob that is used for BMW 3 Series models from 2012 to 2019 utilizes the most advanced battery, CR2450, which has a bigger diameter and is able to accommodate the additional features of the model. The BMW key fob is fitted with a unique identifier which changes constantly. This feature is intended to stop third-party hackers from taking over your vehicle and copying your key fob. In reality, it's almost impossible for anyone to duplicate your BMW key fob, regardless of whether you lose it or had it stolen. The key fob comes with a physical key blade that can be removed and used to unlock the car's interior, or open the doors. This feature is especially useful when you are on a long trip and wish to keep the key fob secure from theft. BMW dealers are able to offer an anti-theft shield for the key fob for a reasonable price to those who are worried about the vulnerability of the key fob. This simple device shields the key fob from unwanted attention. It's a good idea to have one in any vehicle you own. BMW dealerships are your only option to purchase genuine BMW products, which are specifically designed for your vehicle using its VIN. These key fobs will also perform as expected since they have been tested and programmed by the factory. The key fobs are also covered by a warranty, which covers any issues that might arise. This includes issues with materials or workmanship.