There are many different types of fluid in a car, but one mistake that drivers make is thinking that the rules for one applies to the others. You can't treat motor oil the same way you treat engine coolant, and the same goes for brake fluid.
One popular myth, according to Consumer Reports, is that drivers should top up their brake fluid every time it gets low. This is the process for many other types of liquid in the vehicle, so it's natural to assume that brake fluid works in the same way.
However, low brake fluid levels are actually a warning sign for drivers. If a car gets all the way down to "low" in its brake fluid reservoir, it's really a sign that the brakes need servicing, as they are likely worn out. Many drivers make the mistake of filling up their brake fluid again, thinking this will solve the problem, but it actually just masks it.
If you've noticed your brake fluid getting low, it's time to take your vehicle in for brake service & repair. An expert will be able to take a look at your brakes and recommend the next step, and they'll also refill your brake fluid as well.