TOYOTA PRIUS 2003 1.G Owners Manual

175
50p045b
Booster
battery
Negative
terminal
(“” mark) Jumper
cable
Discharged
battery
c. Connect the clamp of the negative
(black) jumper cable to the negative
(–) terminal on the booster battery.
d. Connect the clamp at the other end of the negative (black) jumper cable
to a solid, stationary, unpainted, me-
tallic point of the vehicle with the
discharged battery.
The recommended connecting point is
shown in the following illustrations:
50p043a
Connecting point
CAUTION
When making the connections, to
avoid serious injury, do not lean over
the battery or accidentally let the
jumper cables or clamps touch any-
thing except the correct battery termi-
nals or the ground.
10. Start the hybrid system. Make sure the “READY” light is on. If the hybrid ve-
hicle battery warning light comes on in
the multiinformation display, the hybrid
vehicle battery is also discharged. Con-
tact your Toyota dealer.
11. Carefully disconnect the cables in the exact reverse order: the negative cable
and then the positive cable.
12. Carefully dispose of the battery cover cloths—they may now contain sulfuric
acid.
13. If removed, replace all the battery vent plugs.
If the cause of your auxiliary battery dis-
charging is not apparent (for example,
lights left on), you should have it checked
at your Toyota dealer.

176
If your hybrid system stalls while driving...1. Reduce your speed gradually, keeping a straight line. Move cautiously off the
road to a safe place.
2. Turn on your emergency flashers.
3. Turn the ignition switch to ”OFF” posi- tion, and try starting the hybrid system
again.
If the hybrid system will not start, see “If
your vehicle will not start” on page 172.
CAUTION
If the hybrid system is not operating,
the power assist for the brakes and
steering will not work so steering and
braking will be much harder than usu-
al.
If your high coolant temperature warn-
ing light comes on, if you experience a
loss of power, or if you hear a loud
knocking or pinging noise, the hybrid
system has probably overheated. You
should follow this procedure... 1. Pull safely off the road, stop the ve- hicle and turn on your emergency
flashers. Put the transmission in “P”
and apply the parking brake. Turn off
the air conditioning if it is being used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the hybrid
system. Wait until the steam subsides
before opening the hood. If there is no
coolant boiling over or steam, leave the
hybrid system running and make sure
the electric cooling fan is operating. If
it is not, turn the ignition off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from theradiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the hybrid system is running,
keep hands and clothing away from
the moving fan and engine drive
belts.
4. If the coolant is leaking, stop the hy-brid system immediately. Call a Toyota
dealer for assistance.
5. If there are no obvious leaks, check the coolant reservoir. If it is dry, add
coolant to the reservoir while the hy-
brid system is running. Fill it about half
full.
CAUTION
Do not attempt to remove the radiator
cap when the hybrid system and ra-
diator are hot. Serious injury could
result from scalding hot fluid and
steam blown out under pressure.
If your hybrid system stalls
while driving130. 131.If your vehicle overheats

177
6. After the coolant temperature hascooled to normal, again check the cool-
ant level in the reservoir. If necessary,
bring it up to half full again. Serious
coolant loss indicates a leak in the
system. You s hould have it checked as
soon as possible at your Toyota dealer. 1. Reduce your speed gradually, keeping
a straight line. Move cautiously off the
road to a safe place well away from
the traffic. Avoid stopping on the center
divider of a highway. Park on a level
spot with firm ground.
2. Stop the hybrid system and turn on your emergency flashers.
3. Firmly set the parking brake and put the transmission in “P”.
4. Have everyone get out of the vehicle on the side away from traffic.
5. Read the following instructions thor- oughly.
CAUTION
When jacking, be sure to observe the
following to reduce the possibility of
personal injury:
Follow jacking instructions.
Do not put any part of your body
under a vehicle supported by a
jack. Personal injury may occur.
Do not start or run the hybrid sys-
tem while your vehicle is supported
by the jack.
Stop the vehicle at a level firm
ground, firmly set the parking brake
and put the transmission in “P”.
Block the wheel diagonally opposite
to the one being changed if neces-
sary.
Make sure to set the jack properly
in the jack point. Raising the ve-
hicle with jack improperly posi-
tioned will damage the vehicle or
may allow the vehicle to fall off the
jack and cause personal injury.
Never get under the vehicle when
the vehicle is supported by the jack
alone.
Use the jack only for lifting your
vehicle during wheel changing.
Do not raise the vehicle with some-
one in the vehicle.
When raising the vehicle, do not
put an object on or under the jack.
Raise the vehicle only high enough
to remove and change the tire.
132.If you have a flat tire—

178
NOTICE
Do not continue driving with a de-
flated tire. Driving even a short dis-
tance can damage a tire and wheel
beyond repair.
50p007a
Compact spare tire
The compact spare tire is designed for
temporary emergency use only.
The compact spare tire is identified by the
distinctive wheel design and color and
special wording “TEMPORARY USE ONLY”
molded into the side wall of the tire.
The standard tire should be repaired and
replaced as soon as possible.
The compact spare tire saves space in
your luggage compartment, and its lighter
weight helps to improve fuel economy and
permits easier installation in case of a flat
tire.The compact spare tire can be used many
times, if necessary. It has tread life of up
to 4800 km (3000 miles) depending on
road conditions and your driving habits.
When tread wear indicators appear on the
tire, replace the tire.
See also the tire section on page 222 in
Section 82 for details on the tread wear
indicators and other service information.
CAUTION
The compact spare tire was de-
signed especially for your Toyota.
Do not use it on any other vehicle.
Do not use more than one compact
spare tire at the same time.
Do not exceed 80 km/h (50 mph)
when driving with the compact
spare tire.
Avoid sudden acceleration, sudden
deceleration and sharp turns with
the compact spare tire.

179
NOTICE
Your ground clearance is reduced
when the compact spare tire is
installed so avoid driving over ob-
stacles and drive slowly on rough,
unpaved roads and speed bumps.
Also, do not attempt to go through an
automatic car wash as the vehicle
may get caught, resulting in damage.
50p008a
1. Get the required tools and sparetire.
1 Wheel nut wrench
2 Jack handle
3 Towing eyelet (For emergency towing)
4Jack
5 Spare tire
To prepare yourself for an emergency, you
should fam iliarize yourself with the use of
the jack, each of the tools and their stor-
age locations.
50p009
Turn the jack joint by hand.
To remove: Turn the joint in direction 1
until the jack is free.
To store: Turn the joint in direction 2 until
the jack is firmly secured to prevent it
flying forward during a collision or s udden
braking.
133.—Required tools and
spare tire

180
50p010d
To remove the spare tire:1. Raise the luggage compartment floor.
2. Loosen the bolt with spacer and re- move it.
Then take the spare tire out of the ve-
hicle.
When storing the spare tire, put it in place
with the outer side of the wheel facing up.
Then secure the tire by repeating the
above removal steps in reverse order to
prevent it from flying forward during a
collision or sudden braking.
50p011a
2. Block the wheel diagonally opposite the flat tire to keep the vehicle from
rolling when it is j acked up.
When chocking the wheel, place a wheel
block from the front for the front wheels
or from the rear for the rear wheels.
50p013b
3. Loosen all the wheel nuts.
Always loosen the wheel nuts before rais-
ing the vehicle.
Turn the wheel nuts counterclockwise to
loosen them. To get maximum leverage, fit
the wrench to the nut so that the handle
is on the right side, as shown above.
Grab the wrench near the end of the han-
dle and pull up on the handle. Be careful
that the wrench does not slip off the nut.
Do not remove the nuts yet—just unscrew
them about onehalf turn.
—Blocking the wheel —Loosening wheel nuts

181
CAUTION
Never use oil or grease on the bolts
or nuts. The nuts may loosen and the
wheels may fall off, which could
cause a serious accident.
50p014d
4. Position the jack at the jack pointsas shown.
Make sure the jack is positioned on a
level and solid place.
50p015b
5. After making sure no one is in the vehicle, raise it high enough so that
the spare tire can be installed.
Remember you will need more ground
clearance when putting on the spare tire
than when removing the flat tire.
To raise the vehicle, insert the jack handle
into the jack (it is a loose fit) and turn it
clockwise. As the jack touches the vehicle
and begins to lift, doublecheck that it is
properly positioned.
—Positioning the jack —Raising your vehicle

182
CAUTION
Never get under the vehicle when the
vehicle is supported by the jack
alone.
50p016
6. Remove the wheel nuts and changetires.
Lift the flat tire straight off and put it
aside.
Roll the spare wheel into position and
align the holes in the wheel with the bolts.
Then lift up the wheel and get at least the
top bolt started through its hole. Wiggle
the tire and press it back over the other
bolts.
50p017b
Before putting on wheels, remove any cor-
rosion on the mounting surfaces with a
wire brush or such. Installation of wheels
without good metaltometal contact at the
mounting surface can cause wheel nuts to
loosen and eventually cause a wheel to
come off while driving.
—Changing wheels

183
50p018b
7. Reinstall all the wheel nuts fingertight.
Reinstall the wheel nuts (tapered end in-
ward) and tighten them as much as you
can by hand. Press back on the tire and
see if you can tighten them more.
CAUTION
Never use oil or grease on the bolts
or nuts. Doing so may lead to over-
tightening the nuts and damaging the
bolts. The nuts may loosen and the
wheels may fall off, which could
cause a serious accident. If there is
oil or grease on any bolt or nut,
clean it.
50p019a
8. Lower the vehicle completely and tighten the wheel nuts.
Turn the jack handle counterclockwise to
lower the vehicle.
Use only the wheel nut wrench to tighten
the nuts. Do not use other tools or any
additional leverage other than your hands,
such as a hammer, pipe or your foot.
Make sure the wrench is securely en-
gaged over the nut.
Tighten each nut a little at a time in the
order shown. Repeat the process until all
the nuts are tight.
—Reinstalling wheel nuts —Lowering your vehicle

184
CAUTION
When lowering the vehicle, make
sure all portions of your body and
all other persons around will not be
injured as the vehicle is lowered to
the ground.
Have the wheel nuts tightened by
torque wrench at 103 N·m (10.5
kgf·lbf), as soon as possible after
changing wheels. Otherwise, the
nuts may loosen and the wheels
may fall off, which could cause a
serious accident.
9. Check the air pressure of the re-placed tire.
Adjust the air pressure to the specification
designated on page 243 in Section 9. If
the pressure is lower than specified, drive
slowly to the nearest Toyota dealer and fill
to the correct pressure.
Do not forget to reinstall the tire inflation
valve cap as dirt and moisture could get
into the valve core and possibly cause air
leakage. If the cap is missing, have a new
one put on as soon as possible.
10. Restow all the tools, jack and flat tire securely.
As soon as possible after changing
wheels, tighten the wheel nuts to the
torque specified on page 243 in Section
9 with a torque wrench. Have a technician
repair the flat tire and replace the spare
tire with it.
CAUTION
Before driving, make sure all the
tools, jack and flat tire are securely
in place in their storage location to
reduce the possibility of personal in-
jury during a collision or s udden
braking.
50p021
(a) Towing with wheel lift type truck—
—From front
—From rear
(b) Using flat bed truck
—After changing wheels If your vehicle needs to be
towed—134.