2004 TOYOTA PRIUS key battery

134
NOTICE
The hybrid system cannot be
started when the shift position is in
“N”. Be sure to put it in “P” and
then start the system.
 Do not leave the hybrid system in
“ACC” or “IGON” for a long time.
The auxiliary battery will discharge.
 The hybrid mode in which the bat-
tery is discharged or disconnected
is retained in memory, and that
mode is turned on when power is
applied.
When you leave your vehicle, be sure to
turn the “POWER” switch off and carry the
smart key.
If you get out of your vehicle while carry-
ing a key without turning off the “POWER”
switch and then close the door, a warning
tone sounds inside and beeps sound out-
side.
INFORMATION
You can insert a genuine key while in
the “IGON” mode or with the hybrid
system starting. Do not insert any key
other than genuine keys.

231
You may hear a motor sound in the en-
gine compartment when the brake pedal is
depressed with the hybrid system off.
When the hybrid system is started or
stopped, you may hear a sound coming
from the hybrid vehicle battery in the lug-
gage compartment. However, this does not
indicate any trouble.
If there is a problem somewhere in the
hybrid system, the hybrid system malfunc-
tion warning light will come on in place of
the “READY” light. If this happens, contact
your Toyota dealer.
CAUTION
Never start the hybrid system from
outside the vehicle, or an accident
may occur. Be sure to sit on the driv-
er seat, then start the system when
driving.
NOTICE
The hybrid system cannot be
started when the shift position is
“N”. Be sure to put it in “P” and
then start the system.
 If any warning light comes on (See
page 117 for details.) or the auxilia-
ry battery is disconnected, the hy-
brid system may not start by push-
ing the “POWER” switch. In that
case, push it once again. If the
“READY” light does not come on,
contact your Toyota dealer.
 When you start the hybrid system
at a lowered outside temperature, it
may take longer before the blinking
“READY” light changes to stay on.
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Before starting the hybrid system, be sure
to follow the instructions in “(a) Before
starting the hybrid system”.
Normal starting procedure
Carry the key and press the “POWER”
switch briefly and firmly with the brake
pedal depressed. The “READY” light starts
blinking. After a few seconds, the blinking
“READY” light remains on and a beep
sounds. (If the ambient temperature is
low, such as during winter driving condi-
tions, it may take time until the “READY”
light is on.)
The engine may not start even with the
“READY” light on.
(b) Turning on the hybrid
system
(Using the smart
function—on some models)

238
Before making these checks, make sure
you have followed the correct starting
procedure given in “How to start the
hybrid system” on page 230 and that you
have sufficient fuel. Also check whether
the other keys will start the hybrid
system. If they work, your key may be
broken. Have the key checked at your
Toyota dealer. If none of your keys work,
there may be a malfunction in the hybrid
vehicle immobilizer system. Call your
Toyota dealer. (See “Keys” on page 18.)
If the instrument cluster dims or the
instrument cluster display turns off
with the hybrid system on—1. Check that the auxiliary battery termi- nals are tight and clean.
2. If the auxiliary battery terminals are O.K., the auxiliary battery is dis-
charged. You may try jump starting.
See “(b) Jump starting” for further in-
structions.
NOTICE
Hybrid vehicles cannot be push
started.
If the instrument cluster is shown in
appropriate brightness with the hybrid
system is in the “IGON” mode—
The hybrid vehicle system is suspected to
be faulty. Contact your Toyota dealer. If the auxiliary battery is discharged,
the hybrid system can be started by
jump starting. Depending on the vehicle
condition, the engine may not start.
To avoid serious personal injury and
damage to your vehicle which might re-
sult from battery explosion, acid burns,
electrical burns, or damaged electronic
components, these instructions must be
followed precisely.
If the auxiliary battery is discharged, you
cannot access to the auxiliary battery in
the luggage compartment because the
back door cannot be opened. Use the ex-
clusive jump starting terminal in the en-
gine compartment. For details, see “JUMP
STARTING PROCEDURE” on page 239.
NOTICE
If the auxiliary battery is discharged
with the transaxle in “P”, your vehicle
cannot be moved unless the front
wheels are raised. This is because the
front wheels are locked by means of
the parking lock mechanism.
If you are unsure about how to follow this
procedure, we strongly recommend that
you seek the help of a competent qualified
technician or towing service.
If your vehicle will not start—
(a) Simple checks
(b) Jump starting

239
CAUTION
Booster battery contains sulfuric
acid which is poisonous and corro-
sive. Wear protective safety glasses
when jump starting, and avoid spil-
ling acid on your skin, clothing, or
vehicle.
If you should accidentally get acid
on yourself or in your eyes, remove
any contaminated clothing and flush
the affected area with water imme-
diately. Then get immediate medical
attention. If possible, continue to
apply water with a sponge or cloth
while en route to the medical office.
The gas normally produced by a
battery will explode if a flame or
spark is brought near. Use only
standardized jumper cables and do
not smoke or light a match while
jump starting.
NOTICE
The battery used for boosting must
be 12 V. Do not jump start unless
you are sure that the booster bat-
tery is correct.
 After jump starting procedure, the
hybrid system may not start by
pushing the “POWER” switch. In
that case, push it once again. If the
“READY” light does not come on,
contact your Toyota dealer.
50p049
JUMP STARTING PROCEDURE
1. Apply the parking brake and turn off the headlight switch and interior light.
2. Turn off the hybrid system and remove the key if inserted.
3. Open the hood and fuse block cover shown in the above illustration.

313
AUXILIARY BATTERY
Open voltage at 20C (68 F):
12.6 − 12.8 V Fully charged
12.2 − 12.4 V Half charged
11 . 5 − 11.9 V Discharged
[Voltage that is checked 20 minutes after
the key is removed with all the lights
turned off]
Charging rates: 3.5 A max.
HYBRID TRANSAXLE
Fluid capacity (drain and refill),
L (qt., Imp. qt.): 3.6 (3.8, 3.2)
Fluid type: “Toyota Genuine ATF WS” or
equivalent BRAKES
Minimum pedal clearance when depressed
with the force of 196 N (20 kgf, 44 lbf)
with the traction motor running, mm (in.):
101.0 (3.98)
Pedal free play, mm (in.): 1 − 4 (0.04 − 0.16)
Parking brake adjustment when depressed
with the force of 294 N (30 kgf, 66 lbf): 6 − 9 clicks
Fluid type: SAE J1703 or FMVSS No. 116 DOT 3
STEERING
Wheel free play: Less than 30 mm (1.2 in.)
Tires
Tire size and inflation pressure:
Tire size kPa (kgf/cm
2 or ba r, ps i )
Standard Front P185/65R15 86S
240 (2. 4, 35)
Rear
P185/65R15 86S 230 (2. 3, 33)
Spare T125/70D16 96M
420 (4. 2, 60)
Wheel size: Standard 15 x 6JJ
S par e 16 x 4T
Wheel nut torque, N·m (kgf·m,
ft·lbf): 103 (10.5, 76)
NOTE: For a complete information on tires (e.g. replacing tires
or replacing wheels), see
“Checking tire inflation pres-
sure” through “Aluminum
wheel precautions”, page
289 through 296.

329
Precautions for useof hybrid vehicle
The vehicle has both high voltage
DC and AC systems as well as a
12volt system. DC and AC high
voltage are both very dangerous
and can cause death or serious inju-
ry, severe burns and electric shock.
In order to avoid personal in-
juries, do not touch the high
voltage cables (orange col-
ored) and their connectors.
Follow the caution labels at-
tached to the high voltage
parts.
Do not remove or replace the
high voltage parts such as
the inverter unit (located in
the engine compartment), hy-
brid vehicle battery (located
behind rear seat), etc.
Do not touch the service plug
located in the left side trim
of the luggage compartment
without hybrid system techni-
cal training. (See “Precau-
tions for use” on page 12 in
Section 12.) This component
is provided to disable the
high voltage system in case
of servicing at a Toyota deal-
er.
CAUTIONIf an accident occurs
Pull your vehicle off the road,
push the “P” position switch,
stop the hybrid system and if
the key is inserted into key
slot, remove it.
In order to avoid personal in-
juries, do not touch any high
voltage wirings and their con-
nectors, and high voltage
parts (inverter unit, hybrid ve-
hicle battery, etc.).
If some exposed electric
wires are protruding inside or
outside of your vehicle, an
electric shock may occur.
Never touch the electric
wires.
If fluid leaks or gets in some
parts of the vehicle, never
touch it because it may be
electrolyte (strong alkali) from
the hybrid vehicle battery. If
it gets into your skin or eyes,
wash off immediately with a
large amount of water, if pos-
sible, boric acid solution, and
get immediate medical atten-
tion in order to help avoid
serious injury.
If a vehicle fire occurs, extin-
guish it using a fire extin-
guisher for the exclusive use
on electric fires. Or, use a
large amount of water to pre-
vent flammable gas from be-
ing generated from the batter-
ies.