Where do I check the brake fluid level in a 1999 chevrolet suburban

Under the hood on the driver side it a resevoir that says brake fluid.

Everyone should at least own an owners manual for their vehicle. Many problems have answers in these manuals. Also contains types of fluids, etc for your specific vehicle. Along with this, the larger book can be purchased at places such as Auto Zone. These books contain much more info.....They have helped me a great deal and I am a girl...now that my Father is deceased, I depend greatly on them (my Father was my life-saver when it came to car/truck repairs.) He knew it all and also had a body shop and no-one could compete with his work. He was the best! I even brought my 78 z-28 for him to paint with black laquer, since the body shop there totally messed up the job. It looked perfect! I have to say that he did teach me much, since I did watch him do his work. I am greatful and actually can do body work myself, along with other mechanical things. So, if you can not watch and learn, get books, or pay someone. Good luck.