Brake Fluid Leaks
WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Check the brake fluid level. Although a slight drop results from normal lining wear, an abnormally low level indicates a leak of brake fluid. In such a case, check the entire brake system for leakage. If even a slight evidence of leakage is noted, the cause should be corrected or defective parts should be replaced.