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Hidden Features of Mini Key Fobs Key fobs have been a long way since their early days as decorative trinkets. They can now do everything from locking and unlocking doors to starting the car remotely. Some even have hidden features that owners may not be aware of. If your car's key fob begins malfunctioning, it's time to replace the battery. It's an easy task. Switchblade Keyless Entry Fobs A key fob is much more than unlock and start the car. It's also a theft deterrent and security device. Modern day fobs are easy to use and powerful, as well as more secure than ever. Their high price can be costly to replace them in the event that you break or lose one. A basic key fob might cost just a few dollars to buy however, having it programmed could cost more than $200. Those costs are even higher for vehicles that are of high-end or that have special features. Certain basic warranties or insurance coverage plans may cover the cost of a replacement fob, but the majority of people pay out hundreds out of pocket in the event of needing to get theirs fixed. Some of the latest cars include a fob that functions as a smart keys. The fobs can be used to lock, unlock, and arm an alarm with the press of a button. They can also summon your car similar to Tesla's summon feature however, they must be within reach of the vehicle to be effective. This kind of fob has a metal lock that folds in the fob, similar to a switchblade. A spring holds the key inside when it's not in use and you can take it out by pressing of a button to access the vehicle. A switchblade fob is typically around the same price as an ordinary key fob, which has an iron key. Keyless Entry Fobs that have Physical Key Hidden Modern key fobs offer more than just the capability to unlock and start a vehicle. Modern models can do everything from lowering windows to summoning your vehicle and even auto-parking. Certain of these features aren't useful for your daily commute, but they could be extremely helpful in certain scenarios. Some key fobs include an actual key hidden in them, usually in the form of a flat, metal key blade. The keys are kept in a small space inside the fob, and can be removed by pressing a button at the base of the key fob. If you're in a hurry to get to your car, and you've lost your key or you wish to be in a position to start your BMW by pushing the button, having a spare key can come in handy. The battery in your key fob is likely to fail at some point, and that can be a huge headache for you. The battery of your key fob can be replaced easily and inexpensively. You can buy a replacement from your dealer, a third-party seller such as BimmerTech or a hardware store, or big-box retailers. Some BMW key fobs come with a Display Key that lets you control your car using the key. You can check if the doors are locked and plan when the air conditioner should be on. You can even see the fuel level up to 1,000ft away. Keyless Entry Fobs with Folding Side Mirrors Key fobs today are more advanced than ever. They do more than simply lock and unlock the doors or remotely start the car. Depending on the model, it might be able to make chirping sounds that help you find your vehicle in a parking lot or serve as an audio remote to control your car's radio stations. One of the most useful hidden functions is available on modern models that allow users to shut down all windows at once by pressing the button on your key fob. This is ideal during a hot summer day when the air conditioner can't seem to be able to complete the task. You may have to try several combinations before you can find the one that works in your car. If you're a lover of tight spaces, the key fob in newer Chevrolet and GMC vehicles can help you out by automatically folding the vehicle's side mirrors once you have locked the car. Simply press the “lock” button on the fob for about a second to enable this feature. Do you share a car with someone who is a gentle giant or doesn't appear to have as long legs as you do? You may want to look for a car that has the key fob that lets you to set a memory seat. Some models, like the ones from GMC let you create a seat preference and automatically remember it each time you turn on the car. Keyless Entry Fobs that have a Bluetooth Connection With the rise of smart keys and smartphone access to cars criminals have gained an opportunity to steal vehicles. Wireless protocols used by these systems are vulnerable to hijacking by criminals who can spoof the signal of the key fob or smartphone to open and start your car. mini key not working , small hardware token that can be programmed that provides one-factor authentication to the device that allows access to physical objects like vehicles, computers, restricted room or area or mobile device. The fob transmits wireless signals to the sensor, which recognizes and executes predetermined commands. In many cases the key fob can also be used as an additional security token. It supports two-factor or multiple-factor authentication (2FA and MFA) to provide additional security. This is typically done by adding biometric verification to the equation. For instance fingerprints or iris scan, or even a voice print could be used. Keyless proximity lock systems such as the Kwikset Kevo allow users to access their doors with a smartphone or a Bluetooth-enabled key fob, eliminating the need for a traditional key. These systems are popular among business owners because they enable administrators to manage access to users and onboard new employees without having to change locks or distribute keys cards.