2003 Oldsmobile Bravada Owner's Manual - Page 294

If it is, you should have your brake system fixed, since a leak means that sooner or later your brakes won't work well, or won't work at all. Checking Brake Fluid You can check the brake fluid without taking off the cap. So, it isn't a good idea to "top off' your brake fluid. Adding brake fluid won't correct a leak. If you add fluid when your linings are worn, then you'll have too much fluid when you get new brake linings. You should add (or remove) brake fluid, as necessary, only when work is done on the brake hydraulic sys+-n. If you have too much brake fluid,it can spill on the engine. The fluid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system. See "Checking Brake Fluid" in this section. Refer to the Maintenance Schedule to determine when to check your brake fluid. See farf C: Periodic Maintenance Inspections on page 6-15. After work is done on the brake hydraulic system, make sure the level is above the MIN but not over the MAX mark. 5-35