Brake System - Toyota 2006 Prius Owner's Manual

Brake system

REGENERATIVE BRAKE
When the brake is applied, the electric
motor used as a generator converts kinet-
ic energy into electric energy.
The regenerative brake works in the fol-
lowing operations.
1. When the accelerator pedal
leased, the reduced speed equal to en-
gine braking in a gasoline−fueled ve-
hicle is obtained in accordance with the
running mode position of the shift le-
ver.
2. When the brake pedal is depressed
with the shift lever in "D" or "B", the
regenerative brake works.
HYDRAULIC BRAKE
This brake system has 3 independent hy-
draulic circuits. If either circuit should fail,
the other will still work. However, the ped-
al will be harder to press, and your stop-
ping distance will increase.
brake system warning light may come on.
is re-
CAUTION
Do not drive your vehicle with only a
single brake system.
brakes fixed immediately.
BRAKE ACTUATOR
The brake actuator uses brake fluid pres-
surized by the pump to power−assist the
brakes. If the brake actuator fails during
driving, the brake system warning light
comes on and buzzer sounds continuous-
ly. In this case, the brakes may not work
properly. If they do not work well, depress
the brake pedal firmly. If the brake system
warning light comes on, immediately stop
your vehicle and contact your Toyota deal-
er.
The yellow brake system warning light
may stay on for about 60 seconds after
the "IG−ON" mode is enabled. It is normal
if the light turns off after a while.
Depressing the brake pedal repeatedly
Also, the may turn on the red brake system warning
light and buzzer. It is normal if the light
turns off and the buzzer stops sounding
after a few seconds.
You may hear a small sound in the engine
compartment after the hybrid system is
Have your
started or the brake pedal is depressed
repeatedly. This
sound of the brake system, and it is not
a malfunction.
In the following conditions, you may hear
a motor sound in the engine compartment.
D
The brake pedal is depressed when the
hybrid system is turned off.
D
The driver's door is opened.
D
For a few seconds after the hybrid
system is "OFF" and about 90 seconds
have passed.
The brake pedal stroke may be short
when you press the "POWER" switch with
the brake pedal depressed.
is a pump pulsating
325