2003 TOYOTA PRIUS brake

106
52.Hybrid transaxle
Your hybrid transaxle has a shift lock sys-
tem to minimize the possibility of incorrect
operation. This means you can only shift
out of “P” position when the brake pedal
is depressed (with the ignition switch in
“ON” position and the lock release button
depressed).
(a) Selector lever
The shift position is also displayed on the
instrument cluster.
P:Parking, hybrid system starting and
key removal position
R: Reverse position
N: Neutral position
D: Normal driving position
B: Engine braking position
When the cruise control is being used
even if you shift the selector lever to “B”
position, engine braking will not be applied
because the cruise control is not can-
celled. For ways to decrease the vehicle
speed, see “Cruise control” on page 110.
25p002fWith the brake pedal de-
pressed, shift while holding
the lock release button in.
(The ignition switch must be
in the “ON” position.)
Shift while holding the lock
release button in.
Shift normally.
Lock release button
To prevent misshifting
Selector lever

107
25p003
(b) Normal driving1. Start the hybrid system as instructed in ”How to start the hybrid system” on
page 166 in Section 4. The transmis-
sion must be in ”P”.
2. With your foot holding down the brake pedal, shift the selector lever to ”D”.
CAUTION
Never put your foot on the accelera-
tor pedal while shifting.
3. Release the parking brake and brake
pedal. Depress the accelerator pedal
slowly for smooth starting.
25p004b
(c) Using engine braking
To use engine braking, shift the selector
lever to “B” position.
During high speed driving, you may feel
that deceleration by engine braking is
smaller than that of ordinary vehicle.
Do not continue normal driving with the
selector lever in “B” position for a long
time. This may cause decreased fuel
economy. To prevent this, use “D” position
for normal driving.
CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to spin or
skid.
(d) Backing up
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with your foot, shift the selector lever to the
“R” position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
(e) Parking
1. Bring the vehicle to a complete stop.
2. With the brake pedal pressed down, fully depress the parking brake pedal
to apply the parking brake securely.
3. With the brake pedal pressed down, shift the selector lever to the “P” posi-
tion.

108
If the driver ’s door is opened when the
the “READY” light is on and the the selec-
tor lever is at a position other than “P”
with the parking brake applied, you will
hear beeps to warn you to shift the selec-
tor lever to the “P” position.
CAUTION
While the vehicle is moving, never
attempt to move the running mode
selector lever into “P” position under
any circumstances. Serious mechani-
cal damage and loss of vehicle con-
trol may result.
NOTICE
Be sure to put the selector lever in
“P” position when parking. With the
selector lever in “N” position, the hy-
brid vehicle battery will not be
charged even the gasoline engine op-
erates. You cannot start your vehicle
if the selector lever is left in “N”
position for a long time because the
hybrid vehicle battery will discharge.
(f) Vehicle driving characteristics
Creeping
In order to hold the vehicle properly on an
incline and for better accelerator pedal
operation at starting, vehicle is designed
like an ordinary automatic transmission
vehicle which tends to move without de-
pressing the accelerator pedal with the
selector lever in a position other than “P”
or “N”.
With the selector lever in a position other
than “P” or “N”, depress the brake pedal
firmly even when stopped and apply the
parking brake as required.
When moving in a restricted area or dur-
ing traffic jam, it is an effective way to
control the speed using only the brake
pedal operation without depressing the ac-
celerator pedal.
Regenerative brake
When the accelerator pedal is released or
the brake pedal is depressed, the electric
motor acts as a generator and converts
kinetic energy to electric energy to provide
deceleration and recover the electric ener-
gy to charge the hybrid vehicle battery.
At this time, the electric motor running
noise becomes larger.The operation is the same as an ordinary
gasoline powered vehicle.
You may experience the following condi-
tions while braking. As they do not indi-
cate the malfunction, perform braking as
usual:
When you turn the ignition switch to
“ON” with the brake pedal depressed,
you may feel a little push from the
brake pedal.
When you turn the ignition switch to
“ACC” or “LOCK” from “ON”, the brake
pedal may move a little.

109
Hybrid driving
This vehicle runs in combination with the
gasoline engine and electric motor.
If the “READY” light is on, you can start
your vehicle even with the gasoline engine
stopped.
When the hybrid vehicle battery tempera-
ture is low or high, or the hybrid vehicle
battery capacity is decreased with the run-
ning mode selector lever at “R” during
driving, the output control warning light is
on and the output power may be limited.
If the output control warning light is on,
drive your vehicle without hard accelera-
tion. The output power will be limited par-
ticularly when backing up.
(g) If you cannot shift lever out of “P”position
If you cannot shift the selector lever from
the “P” position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see “If
you cannot shift running mode selector
lever” on page 188 in Section 5.
25p008
Vehicles sold in U.S.A.
25p009
Vehicles sold in Canada
When parking, firmly apply the parking
brake to avoid inadvertent creeping.
To set: Fully depress the parking brake
pedal. For better holding power, first de-
press the brake pedal and hold it while
setting the parking brake.
To release: Depress the parking brake
pedal while depressing the brake pedal.
To remind you that the parking brake is
set, the parking brake reminder light in
the instrument panel remains on until you
release the parking brake.
CAUTION
Driving with the parking brake en-
gaged can reduce braking power.
Before driving, be sure the parking
brake is fully released and the park-
ing brake reminder light is off.
53.Parking brake

111
If you need acceleration—for example,
when passing—depress the accelerator
pedal enough for the vehicle to exceed
the set speed. When you release it, the
vehicle will return to the speed set prior
to the acceleration.
CANCELLING THE PRESET SPEED
You can cancel the preset speed by:a. Pulling the control lever in the ”CANCEL” direction and releasing it.
b. Depressing the brake pedal.
If the vehicle speed falls below about 40
km/h (25 mph), the preset speed will auto-
matically cancel out.
If the vehicle speed drops 16 km/h (10
mph) below the preset speed, the preset
speed will also automatically cancel out.
If the preset speed automatically cancels
out other than for the above cases, have
your vehicle checked by your Toyota deal-
er at the earliest opportunity. RESETTING TO A FASTER SPEED
Push the lever up in the ”RES/ACC” direc-
tion and hold it. Release the lever when
the desired speed is attained. While the
lever is held up, the vehicle will gradually
gain speed.
However, a faster way to reset is to ac-
celerate the vehicle and then push the
control lever down in the ”SET/COAST”
direction.
RESETTING TO A SLOWER SPEED
Push the lever down in the ”SET/COAST”
direction and hold it. Release the lever
when the desired speed is attained. While
the lever is held down, the vehicle speed
will gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then push the
control lever down in the ”SET/COAST”
direction.
RESUMING THE PRESET SPEED
If the preset speed is cancelled by pulling
the control lever or by depressing the
brake pedal, pushing the lever up in the
”RES/ACC” direction will restore the speed
set prior to cancellation.
However, once the vehicle speed falls be-
low about 40 km/h (25 mph), the preset
speed will not be resumed.
CRUISE CONTROL FAILURE WARNING
If the ”CRUISE” indicator light in the
instrument cluster flashes when using the
cruise control, press the ”CRUISE
ON·OFF” button to turn the system off and
then press it again to turn it on.
If any of the following conditions then oc-
curs, there is some trouble in the cruise
control system.
The indicator light does not come on.
The indicator light flashes again.
The indicator light goes out after it
comes on.
If this is the case, contact your Toyota
dealer and have your vehicle inspected.

149
103.INFORMATION BEFORE DRIVING
YOUR TOYOTA
Information before driving your TOYOTA
Breakin period150
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Fuel 150
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Fuel pump shutoff system m 152. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation in foreign countries 152
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Threeway catalytic converter Toyota HC adsorber and catalyst system 153
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Engine exhaust cautions 154
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Facts about engine oil consumption 155
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Iridiumtipped spark plugs 156
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Brake system 156
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Brake pad wear limit indicators 160
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Luggage stowage precautions 160
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Your Toyota’s identification 161
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Theft prevention labels 162
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Suspension and chassis 162
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Types of tires 162
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SECTION 3

156
For detailed information on oil level check,
see “Checking the engine oil level” on
page 214 in Section 82.
Your engine is fitted with iridiumtipped
spark plugs.
NOTICE
Use only iridiumtipped spark plugs
and do not adjust gaps for your en-
gine performance and smooth drivabil-
ity.
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 is re- leased, the reduced speed equal to en-
gine braking in a gasolinefueled ve-
hicle is obtained in accordance with the
running mode position of the selector
lever.
2. When the brake pedal is depressed with the selector lever in “D” or “B”,
the regenerative brake works.
112.Iridiumtipped spark plugs 113.Brake system

157
HYDRAULIC BRAKE
This brake system has 2 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 be longer. Also, the
brake system warning light may come on.
CAUTION
Do not drive your vehicle with only a
single brake system. Have your
brakes fixed immediately.
BRAKE BOOSTER
The brake booster uses brake fluid pres-
surized by the pump to powerassist the
brakes. If the brake booster 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 brake system warning light may stay
on for about 60 seconds after the ignition
key is turned to the “ON” position. It is
normal if the light turns off after a while.
Depressing the brake pedal repeatedly
may turn on the 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
started or the brake pedal is depressed
repeatedly. This is a pump pulsating
sound of the brake system, and it is not
a malfunction.
CAUTION
Do not pump the brake pedal if the
hybrid system is not operating.
Each push on the pedal uses up
your reserved brake fluid pressure.
Even if the power assist is com-
pletely lost, the brakes will still
work. But you will have to push the
pedal hard, much harder than nor-
mal. And your braking distance will
be longer.
ANTILOCK BRAKE SYSTEM
The antilock brake system is designed
to automatically help prevent lockup of
the wheels during a sudden braking or
braking on slippery road surfaces. This
assists in providing directional stab
ility
and steering performance of the vehicle
under these circumstances.
Effective way to press the ABS brake
pedal: When the antilock brake system
function is in action, you may feel the
brake pedal pulsating and hear a noise.
In this situation, to let the antilock
brake system work for you, just hold the
brake pedal down more firmly. Do not
pump the brake in a panic stop. This
will result in reduced braking perfor-
mance.
The antilock brake system becomes op-
erative after the vehicle has accelerated
to a speed in excess of approximately 10
km/h (6 mph). It stops operating when the
vehicle decelerates to a speed below
approximately 5 km/h (3 mph).