2004 TOYOTA PRIUS power steering

2
Instrument panel overview
1. Side vents187
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2. Side defroster outlets
3. Instrument cluster 4
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4. Center vents 187
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5. Glove boxes 191
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6. Power door lock switches 38
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7. Power window switches 40
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8. Auxiliary boxes 195
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9. Cup holders 196
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10. Tilt steering lock release lever 96 . . . . .
11. Hood lock release lever 43
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12. Parking brake pedal 141
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13. Power rear view mirror control switch 97
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14. Window lock switch 41
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11p003d

5
Indicator symbols on the instrument cluster and Multiinformation display
orand
Brake system warning lights∗1
Driver ’s seat belt reminder light∗1
Front passenger ’s seat belt reminder light∗1
Malfunction indicator lamp∗1
Low fuel level indicator light∗1
Open door warning light∗1
Master warning light∗1
Anti −lock brake system warning light∗
1
SRS warning light∗1
Engine oil replacement reminder light∗1
(for vehicles sold in U.S.A.)
Vehicle stability control system warning light∗1
Discharge warning light∗2
High coolant temperature warning light∗2
Low engine oil pressure warning light∗2
Hybrid vehicle battery warning light∗2
Electric power steering system warning light∗2
or
(U.S.A)
(Canada)

69
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can in-
terfere with proper operation of the
SRS front airbag system in some
cases.
Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
 Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger airbag
22p010a
This indicator comes on when the “IG
ON” mode is enabled. It goes off after
about 6 seconds. This means the SRS
front airbags are operating properly.
The warning light system monitors the air-
bag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors,
driver ’s seat position sensor, driver ’s seat
belt buckle switch, front passenger ’s seat
belt buckle switch, seat belt pretensioner
assemblies, warning light, interconnecting
wiring and power sources. (For details,
see “Service reminder indicators and
warning buzzers” on page 117.) If any of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
When the “IG
−ON” mode is enabled,
the light does not come on or remains
on for more than 6 seconds.
The light comes on while driving.

127
(d) Electric Power Steering SystemWarning Light
This light comes on when the power
steering control system fails.
CAUTION
If this light comes on, take your ve-
hicle to the Toyota dealer as soon as
possible. In this case, you may feel
the heavy steering wheel maneuver-
ing. Drive your vehicle while gripping
the steering wheel firmly.
(e) Hybrid System Warning Light ()
This light comes on if there is a problem
in the electric motor, inverter unit, hybrid
vehicle battery, etc.
If this light is on, stop your vehicle in a
safe place immediately and contact your
Toyota dealer.
Even if the hybrid system warning light
comes on, you can temporarily increase
the vehicle speed by depressing the ac-
celerator pedal. Immediately pull up your
vehicle to a safe place and contact your
Toyota dealer. (f) Hybrid Vehicle Battery Warning
Light
This light comes on in the following
cases.
a. The hybrid vehicle battery voltage
drops when the hybrid transaxle is left in
“N” position.
The system works properly if you put the
hybrid transaxle in “P” position and the
light goes off.
b. The hybrid vehicle battery is dis-
charged.
If this light comes on with the “READY”
light on in case of b., stop your vehicle
in a safe place and contact your Toyota
dealer.
(g) Automatic Headlight Leveling Sys- tem Warning Light
This light warns that there is a problem
somewhere in the automatic headlight
leveling system.
If it comes on, have your vehicle checked
by your Toyota dealer,

201
INFORMATION BEFORE DRIVING YOUR
TOYOTA
INFORMATION BEFORE DRIVING YOUR TOYOTA
Break−in period 202
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Fuel 202
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Fuel pump shut −off systemm 204
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Operation in foreign countries 204
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Three −way catalytic converters 205
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Engine exhaust cautions 206
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Facts about engine oil consumption 206
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Coolant heat storage system 208
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Iridium −tipped spark plugs 208
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Brake system 209
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Electric power steering system 213
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Brake pad wear limit indicators 213
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Your Toyota’s identification 214
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Theft prevention labels 215
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Suspension and chassis 215
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Tire information 216
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Vehicle load limits 224
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Cargo and luggage 224
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Types of tires 227
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SECTION 3

210
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
increase.
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 stability
and steering performance of the vehicle
under these circumstances.
Effective way to press the ABS brake
pedal: When the anti −lock brake system
function is in action, the slip indicator in
the instrument cluster flashes and you
will hear a noise. In this situation, to let
the anti −lock 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
performance.
The anti −lock 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). Depressing the brake pedal on slippery
road surfaces such as on a manhole cov-
er, a steel plate at a construction site,
joints in a bridge, etc. on a rainy day
tends to activate the anti
−lock brake sys-
tem.
When the antilock brake system is ac-
tivated, the following condition may oc-
cur. They do not indicate a malfunction
of the system:
You may hear the anti −lock brake sys-
tem operating and the vibrations of the
vehicle body and steering wheel. You
may also hear the motor sound in the
engine compartment even after the ve-
hicle is stopped.

213
The electric power steering system, us-
ing an electric motor, assists the turn-
ing of the steering wheel.
In the following cases, you may feel the
steering becomes heavy. However, the
electric power steering system warning
light does not come on. (Because it is
not a malfunction.)
When maneuvering the steering fre-
quently or keeping the steering wheel
turned fully while the vehicle is stopped
or moving very slowlyThe power steering effect will be re-
duced to prevent the system from over-
heating. Avoid turning the steering
wheel, or stop the vehicle. When you
leave the vehicle in the “IG −ON” mode
for a while, the system will become
cool.
NOTICE
If you repeat the operation which will
turn on the overheating prevention
function, the electric power steering
system may be damaged.
When the auxiliary battery is dis-
charged
Check the auxiliary battery’s condition.
If necessary, recharge or replace the
battery. For details, see “Checking aux-
iliary battery condition” on page 298.
When the steering wheel is operated
with the hybrid system not to be turned
on (with the “READY” light off)
The auxiliary battery capacity is de-
creased temporarily. The system re-
turns to normal some time after the
hybrid system is turned on.
If there is a problem somewhere in the
electric power steering system, the warn-
ing light comes on in the multi −information
display. For details, see “Multi −information
display” on page 124.30p003
The brake pad wear limit indicators on
your disc brakes give a warning noise
when the brake pads are worn to where
replacement is required.
If you hear a squealing or scraping noise
while driving, have the brake pads
checked and replaced by your Toyota
dealer as soon as possible. Expensive ro-
tor damage can result if the pads are not
replaced when necessary.
Electric power steering system Brake pad wear limit
indicators

221
Ti r e relat ed ter m
Meaning
Cold tire inflation pressuretire inflation pressure when the vehicl
e has been parked at least 3 hours or
more, or it has not been driven more t han 1.5 km or 1 mile under that condition
Maximum inflation pressurethe maximum cold inflation pressure to which a tire may be inflated and shown
on the sidewall of the tire
Recommended inflation pressurecold tire inflation pressure recommended by a manufacturer
Accessory weight
the combined weight (in excess of those standard items which may be replaced)
of automatic transmission, power steering, power brakes, power windows, pow-
er seats, radio, and heater, to the extent that these items are available as
factory−installed equipment (whether installed or not)
Curb weight
the weight of a motor vehicle with standard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and addi-
tional weight optional engine
Maximum loaded vehicle weight
t he sum of —
(a) curb weight;
(b) accessory weight;
(c) vehicle capacity weight; and
(d) production options weight
Normal occupant weight68 kg (150 lb.) times the number of occupants specified in the second column
of Table 1 that follows
—Glossary of tire terminology