2007 Pontiac Solstice Owner's Manual - Page 270

Brakes Brake Fluid Your brake master cylinder reservoir is filled with DOT-3 brake fluid. See Engine Compartment Overview on page 244 for the location of the reservoir. So, it is not a good idea to top off your brake/clutch fluid. Adding fluid will not correct a leak. If you add fluid when your brake linings are worn, then you will have too much fluid when you get new brake linings. You should add or remove fluid, as necessary, only when work is done on the brake/clutch hydraulic system. {CAUTION: If your vehicle has 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 and/or clutch hydraulic system. When your brake fluid falls to a low level, your brake warning light will come on. See Brake System Warning Light on page 134. 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 to an acceptable level during normal brake lining wear. When new linings are put in, the fluid level goes back up. The other reason is that fluid is leaking out of the brake and/or clutch hydraulic system. If it is, you should have your brake and/or clutch system fixed, since a leak means that sooner or later your brakes and/or clutch will not work well, or will not work at all. 270