auxiliary battery TOYOTA PRIUS 2002 1.G User Guide

200
Engine compartment overview
1. Engine coolant reservoir
2. Fuse blocks
3. Brake fluid reservoir
4. Engine oil filler cap
5. Inverter reservoir tank
6. Windshield washer fluid tank
7. Radiator and condenser
8. Engine oil level dipstick
9. Auxiliary battery
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205
Parts and tools
Here is a list of parts and tools you will
need on performing do−it−yourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
CHECKING THE ENGINE OIL LEVEL
Parts (if level is low):
Engine oil API grade SJ “Energy −Con-
serving”, SL “Energy −Conserving” or IL-
SAC multigrade having viscosity proper
for your climate
Tools:
Rag or paper towel
Funnel (only for adding oil)
CHECKING THE COOLANT LEVEL
Parts (if level is low):
”TOYOTA Long Life Coolant” or equiva-
lent
See page 210 in Section 8 −2 for de-
tails about coolant type selection.
Demineralized or distilled water
Tools:
Funnel (only for adding coolant) CHECKING BRAKE FLUID
Parts (if level is low):
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING AUXILIARY BATTERY CON-
DITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal
clamp bolts)
CHECKING AND REPLACING FUSES
Parts (if replacement is necessary):
Fuse with same amperage rating as
original
ADDING WASHER FLUID
Parts:
Water
Washer fluid containing antifreeze (for
winter use) Tools:
Funnel
REPLACING LIGHT BULBS
Parts:
Bulb with same number and wattage
rating as original (See charts in ”Re-
placing light bulbs–” on page 225 in
Section 8 −3.)
Tools:
Screwdriver

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DOITYOURSELF MAINTENANCE
Electrical components
Checking auxiliary battery condition 222
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Auxiliary battery recharging precautionss 223
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Checking and replacing fuses 223
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 225
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. . . . .
Replacing light bulbs 225
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. . . .
SECTION 8– 3

222
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
Hold−down 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 hold− down clamp only
enough to keep the battery firmly in
place. Overtightening may damage the
battery case.
Checking auxiliary battery
condition—
—Precautions —Checking auxiliary battery
exterior

223
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
precautions
Checking and replacing fuses

236
ENGINE LUBRICATION
Oil capacity (drain and refill), L (qt, lmp.
qt.):
With filter 3.7 (3.9, 3.3)
Without filter 3.4 (3.6, 3.0)
Oil grade: API grade SJ “Energy −Conserving”, SL
“Energy −Conserving” or ILSAC
multigrade engine oil is recommended.
Recommended oil viscosity (SAE):
oil05u
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.): For gasoline engine 4.9 (5.2, 4.3)
For electric motor
and inverter and
converter 2.6 (2.7, 2.3)
Coolant type: “TOYOTA Long Life Coolant” or equiva-
lent
With ethylene− glycol type coolant for a
proper corrosion protection of aluminum
components
Do not use alcohol type antifreeze or plain
water alone.
AUXILIARY BATTERY
Open voltage at 20 C (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, L (qt., Imp. qt.):
4.6 (4.9, 4.1)
Fluid type: Automatic transmission fluid Type T −IV
or equivalent