1997 Cadillac DeVille Owner's Manual - Page 310

Brakes Brake Fluid system fixed, since a leak means that sooner or later your brakes won't work well,or won't work at all. So, it isn't a good idea "top off' your brake fluid. to Adding brake fluid won't correct a leak.you add fluid If when your liningsare worn, then you'll have too much fluid when youget new brake linings.You should add (or remove) brake fluid, as necessary, only when work is done on the brake hydraulic system. \ CAU-ION: Your brake master cylinder reservoir is here. is filled It with DOT-3 brake fluid. There are only two reasons why the brake fluid level in the reservoir might go down. The first is that the brake fluid goes down toan acceptable level during normal brake lining wear. When new linings put in, the fluid level are goes back up. The other reason is that fluid is leaking out of the brake system.If it is, you should have your brake 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 done on the brake is hydraulic system. When your brake fluid falls to a low level, your brake warning light will come on. "Brake System Warning See Light" inthe Index. -