2011 Toyota Yaris Owners Manual - Page 674

4-3. Do-it-yourself maintenance CAUTION n When working on the engine compartment l Take care because brake fluid can harm your hands or eyes and damage painted surfaces. If fluid gets on your hands or in your eyes, flush the affected area with clean water immediately. If you still experience discomfort, see a doctor. n When working near the electric cooling fan or radiator grille Be sure the engine switch is off. With the engine switch on, the electric cooling fan may automatically start to run if the air conditioning is on and/or the coolant temperature is high. n Safety glasses Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in the eyes. NOTICE n If you remove the air cleaner Driving with the air cleaner removed may cause excessive engine wear due to dirt in the air. Also a backfire could cause a fire in the engine compartment. n If the brake 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. 252