2009 Toyota Corolla Owners Manual - Page 285

4-3. Do-it-yourself maintenance CAUTION n When filling the reservoir Take care because brake fluid can harm your hands or eyes and damage painted surfaces. If fluid gets in your eyes, flush your eyes with clean water immediately. If you still experience discomfort, see a doctor. NOTICE n If the fluid level is low or high It is normal for the brake fluid level to go down slightly as the brake pads wear or when the fluid level in the accumulator is high. If the reservoir needs frequent refilling, it may indicate a serious problem. 320