Toyota Prius 2011 Manual page 446

4-3. Do-it-yourself maintenance
NOTICE
If the fluid level is low
■
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.
Washer fluid
STEP 1
STEP 2
446
Open the lid.
Check the washer fluid level on
the level gauge.
"NORMAL"
"LOW"