TOYOTA PRIUS 2003 1.G Owners Manual

225
TIRE CHAIN SELECTION
Use the tire chains of correct size.
Regulations regarding the use of tire
chains vary according to location or
type of road, so always check them
before installing chains.
CHAIN INSTALLATION
Install the chains on the front tires as
tightly as possible. Do not use tire
chains on the rear tires. Retighten
chains after driving 0.5—1.0 km
(1/4—1/2 mile).
When installing chains on your tires, care-
fully follow the instructions of the chain
manufacturer.
If wheel covers are used, they will be
scratched by the chain band, so remove
the covers before putting on the chains.CAUTION
Do not exceed 50 km/h (30 mph) or
the chain manufacturer ’s recom-
mended speed limit, whichever is
lower.
Drive carefully avoiding bumps,
holes, and sharp turns, which may
cause the vehicle to bounce.
Avoid sharp turns or lockedwheel
braking, as use of chains may ad-
versely affect vehicle handling.
When driving with chains installed,
be sure to drive carefully. Slow
down before entering the curves to
avoid losing control of the vehicle.
Otherwise an accident may occur.
NOTICE
Do not attempt to use a tire chain on
the compact spare tire, as it may re-
sult in damage to the vehicle as well
as the tire.
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace damaged wheels, the
tire may slip off the wheel or cause loss
of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and offset.
This must be observed on compact spare
tire, too.
Correct replacement wheels are available
at your Toyota dealer.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis.
166.Replacing wheels

226
Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.When installing aluminum wheels,
check that the wheel nuts are tight
after driving your vehicle the first 1600
km (1000 miles).
If you have rotated, repaired, or
changed your tires, check that the
wheel nuts are still tight after driving
1600 km (1000 miles).
When using tire chains, be careful not
to damage the aluminum wheels.
Use only the Toyota wheel nuts and
wrench designed for your aluminum
wheels.
When balancing your wheels, use only
Toyota balance weights or equivalent
and a plastic or rubber hammer.
As with any wheel, periodically check
your aluminum wheels for damage. If
damaged, replace immediately.
167.Aluminum wheel
precautions

227
DOITYOURSELF MAINTENANCE
168.Electrical components
Checking auxiliary battery c ondition 228
. . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary battery recharging precautions s229
. . . . . . . . . . . . . . . . . . . . .
Checking and replacing fuses 229
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 231
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
Replacing light bulbs 231
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
SECTION 8– 3

228
CAUTION
AUXILIARY BATTERY PRECAUTIONS
When the auxiliary battery must be
replaced, use the Prius designated
battery.
The auxiliary battery produces flam-
mable and explosive hydrogen gas.
Do not cause a spark from the bat-
tery with tools.
Do not smoke or light a match near
the battery.
The electrolyte contains poisonous
and corrosive sulfuric acid.
Avoid contact with eyes, skin or
clothes.
Never ingest electrolyte.
Wear protective safety glasses when
working near the battery.
Keep children away from the bat-
tery.
EMERGENCY MEASURES
If electrolyte gets in your eyes,
flush your eyes with clean water
and get immediate medical atten-
tion. If possible, continue to apply
water with a sponge or cloth while
en route to the medical office.
If electrolyte gets on your skin,
thoroughly wash the contact area. If
you feel pain or burn, get medical
attention immediately.
If electrolyte gets on your clothes,
there is a possibility of its soaking
through to your skin, so immediate-
ly take off the exposed clothing and
follow the procedure above, if nec-
essary.
If you accidentally swallow electro-
lyte, drink a large quantity of water
or milk. Follow with milk of magne-
sia, beaten raw egg or vegetable
oil. Then go immediately for emer-
gency help.
Warning: Battery posts, terminals and
related accessories contain lead and
lead compounds, chemicals known to
the State of California to cause can-
cer and reproductive harm. Wash
hands after handling.
Terminals
Ground cable
Holddown clamp
Check the battery for corroded or loose
terminal connections, cracks, or loose
holddown clamp.
a. If the battery is corroded, wash it off with a solution of warm water and bak-
ing soda. Coat the outside of the termi-
nals with grease to prevent further cor-
rosion.
b. If the terminal connections are loose, tighten their clamp nuts—but do not
overtighten.
c. Tighten the holddown clamp only enough to keep the battery firmly in
place. Overtightening may damage the
battery case.
Checking auxiliary battery
condition—169.
—Precautions —Checking auxiliary battery
exterior

229
NOTICE
Be sure the hybrid system and all
accessories are off before perform-
ing maintenance.
 When checking the battery, remove
the ground cable from the negative
terminal (“—” mark) first and rein-
stall it last.
 Be careful not to cause a short cir-
cuit with tools.
 Take care no solution gets into the
battery when washing it.
During recharging, the battery is pro-
ducing hydrogen gas.
Therefore, before recharging:
1. If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
2. Make sure the power switch on the recharger is off when connecting the
charger cables to the battery and when
disconnecting them.
CAUTION
Always charge the battery in an un-
confined area. Do not charge the
battery in a garage or closed room
where there is not sufficient ventila-
tion.
Only do a slow charge (3.5A or
less). Charging at a quicker rate is
dangerous. The battery may ex-
plode, causing personal injuries.
NOTICE
Never recharge the battery with the
hybrid system on. Also, be sure all
accessories are turned off.
83p003
Type A
Type B
Type C Good Blown
Good Blown
Good Blown
Auxiliary battery recharging
precautions170.
171.Checking and replacing
fuses

230
83p004a
If the headlights or other electrical
components do not work, check the
fuses. If any of the fuses are blown,
they must be replaced.
See “Fuse locations” on page 207 in Sec-
tion 81 for locations of the fuses.
Turn the ignition switch and inoperative
component off. Pull a suspected fuse
straight out and check it.
Determine which fuse may be causing the
problem. The lid of the fuse box shows
the name of the circuit for each fuse. See
page 244 in Section 9 for the functions
controlled by each circuit.Type A fuses can be pulled out by the
pullout tool. The location of the pullout
tool is shown in the illustration.
If you are not sure whether the fuse has
blown, try replacing the suspected fuse
with one that you know is good.
If the fuse has blown, push a new fuse
into the clip.
Only install a fuse with the amperage rat-
ing designated on the fuse box lid.
If you do not have a spare fuse, in an
emergency you can pull out the “DOME”
or “OBD
II” fuse, which may be dispens-
able for normal driving, and use it if its
amperage rating is the same.
If you cannot use one of the same amper-
age, use one that is lower, but as close
as possible to, the rating. If the amperage
is lower than that specified, the fuse
might blow out again. but this does not
indicate anything wrong. Be sure to get
the correct fuse as soon as possible and
return the substitute to its original clip.
It is a good idea to purchase a set of
spare fuses and keep them in your ve-
hicle for emergencies. If the new fuse immediately blows out,
there is a problem with the electrical sys-
tem. Have your Toyota dealer correct it as
soon as possible.
CAUTION
Never use a fuse with a higher am-
perage rating, or any other object, in
place of a fuse. This may cause ex-
tensive damage and possibly a fire.

231
83p009
If any washer does not work, the wash-
er tank may be empty. Check the wash-
er fluid level on the level gauge. If the
washer fluid level is below “LOW”, add
washer fluid.
“
FULL” on the side of the washer tank
indicates the full level of washer fluid. Do
not refill washer fluid over this level.
You may use plain water as washer fluid.
However, in cold areas where tempera-
tures range below freezing point, use
washer fluid containing antifreeze. This
product is available at your Toyota dealer
and most auto parts stores. Follow the
manufacturer ’s directions for how much to
mix with water.
NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-
age your vehicle’s paint.
The following illustrations show how to
gain access to the bulbs. When replacing
a bulb, make sure the ignition switch and
light switch are off. Use bulbs with the
wattage ratings given in the table.
CAUTION
To prevent burning yourself, do not
replace the light bulbs while they
are hot.
Halogen bulbs have pressurized gas
inside and require special handling.
They can burst or shatter if
scratched or dropped. Hold a bulb
only by its plastic or metal case.
Do not touch the glass part of a
bulb with bare hands.
NOTICE
Only use a bulb of the listed type.
172.Adding washer fluid 173.Replacing light bulbs—

232
The inside of the lens of exterior lights
such as headlights may temporarily fog up
when the lense becomes wet in the rain
or in a car wash. This is not a problem
because the fogging is caused by the
temperature difference between the outside
and inside of the lense, just like the
windshield fogged up in the rain. However,
if there is a large drop of water on the
inside of the lense, or if there is water
pooled inside the light, contact your
Toyota dealer.Light bulbsBulbNo.WTy p e
Headlights—60/55A
Parking lights9475C
Front turn signal
lights—21B
Rear turn signal lights744021C
Stop and tail lights744321/5C
Backup lights92116C
License plate lights—5C
High mounted stop-
light94195C
Interior light—8D
Personal light—8B
Trunk light1943.8C
A: HB2 Halogen bulbs
B: Single end bulbs
C: Wedge base bulbs
D: Double end bulbs
—Headlights
83p010
1. Open the hood.
RIGHTHAND HEADLIGHT: Remove
the clip and take out the air cleaner
inlet.
Remove and install the clip as shown
in the following illustration.
LEFTHAND HEADLIGHT: Remove the
upper part of the washer fluid reser-
voir while pinching the lever.

233
83p011
Removing clip
83p012
Installing clip
83p013
2. Unplug the connector. Remove therubber cover.
If the connector is tight, wiggle it.
83p014
3. Release the bulb retaining spring and remove the bulb along with the
socket. Install a new bulb into the
socket and return the bulb retaining
spring to its original position.
To install a bulb, align the tabs of the
bulb with the cutout of the mounting hole.

234
83p015a
4. Install the rubber cover as shown,and fit it securely on the boss. Plug
in the connector.
Make sure the rubber cover fits securely
on the connector and the headlight body.
Aiming is not necessary after replacing
the bulb. When aiming adjustment is nec-
essary, contact your Toyota dealer.
—Parking lights
83p016
83p017
83p010
RIGHTHAND FRONT TURN SIGNAL
LIGHT: Remove the clip and take out
the air cleaner inlet.
Remove and install the clip as shown in
the following illustration.
LEFTHAND FRONT TURN SIGNAL: Re-
move the upper part of the washer fluid
reservoir while pinching the lever.
—Front turn signal lights