2003 HONDA CIVIC HYBRID coolant

CONT INUED
Remove the radiator cap. Turn the ignition ON (II). Turn
the temperature control dial to
maximum heat. Turn of f the
ignition. Open the hood. Make
sure the engine and radiator are
cool to the touch.
Draining the coolant requires access
to the underside of the car. Unless
you have the tools and knowledge,
you should have this maintenance
done by a skilled mechanic. Thecoolingsystemshouldbe
completely drained and ref illed with
new coolant according to the time
and distance recommendations in
the maintenance schedule. Only use
Honda All Season Antif reeze/
Coolant Type 2.
Loosen the drain plug on the
bottom of the radiator. The
coolant will drain through the
splash guard. Drain the coolant
into an appropriate container.
1.
3.
2.
Replacing Engine Coolant
Cooling Syst em
Maint enance201
DRAIN PLUG

µ
´ Remove the battery and the tray.
Remove the reserve tank
mounting bolt with a wrench, then
remove the coolant tube f rom the
three clips. Remove the reserve
tank f rom its holder and drain the
coolant into an appropriate
container.
To remove the reserve tank to
drain the coolant, f irst remove the
battery.
Disconnect the battery cables
f rom the terminals. Disconnect
the negative ( ) cable first, then
the positive ( ) cable.
Remove the bolt and the nut with
a wrench, and remove the battery
plate. Pull the bottom end of the
stay out of the hole, and remove
the stay and the battery cover.
Remove the cover to access the
drain bolt (see page ). Remove
the drain bolt and washer f rom the
engine block. Drain the coolant
into an appropriate container.
4.
5.
6.7.
8.
197
Cooling Syst em
Maint enance202
DRAIN BOLT
STAY NUT
BOLT
COVER TAB
BOLT

´
µ
CONT INUED
If your car’s battery is disconnected
or goes dead, the audio system will
disableitself.Thenexttimeyouturn
on the radio you will see ‘‘ ’’
in the f requency display. Use the
Preset buttons to enter the five-digit
code (see page ).
When the audio system disables
itself , the clock setting will cancel.
To reset the clock, ref er to the
Digital Clock in the audio system’s
operation.When the coolant stops draining,
tightenthedrainplugatthe
bottom of the radiator.
Put a new washer on the drain bolt,
then reinstall the drain bolt in the
engine block. Tighten it securely.
Tightening torque: Loosen the bleeder bolt on top of
the engine.
Put the tube back in the clips and
put the reserve tank back in place,
making sure its bottom tab is in
the holder. Reinstall and tighten
the mounting bolt securely.
Reinstall the tray, battery, stay,
battery case, and battery plate in
the reverse order of removal.
Reinstall and tighten the bolt and
nut securely.
Reconnect the battery cables to
the terminals. Connect the positive
( ) cable f irst, then the negative
()cable.
Battery posts,
terminals and related accessories
contain lead and lead compounds.
Reinstall the cover.137
12.
13.
11. 10. 9.
15.
14.
Cooling Syst em
Maint enance
WARNING:
Wash hands af ter handling.
203
BLEEDER BOLT
58 lbf·ft (78 N·m , 8.0 kgf·m)

Start the engine and let it run until
the radiator cooling f an comes on
at least twice. Then stop the
engine.
Remove the radiator cap. Fill the
radiator with coolant up to the
base of the f iller neck.
The cooling system capacity is:
Tighten the bleeder bolt when
coolant comes out in a steady
stream with no bubbles.
Start the engine and let it run f or
about 30 seconds. Then turn of f
the engine.
Check the level in the radiator,
add coolant if needed.
Fill the reserve tank to the MAX
mark. Install the reserve tank cap.
Install the radiator cap, and
tighten it to the first stop.
Pour Honda All Season
Antif reeze/Coolant Type 2 into
the radiator up to the base of the
f iller neck. This coolant is a
mixture of 50 percent antif reeze
and 50 percent water. Pre-mixing
is not required.
16.
17.
18.
19.
20.
21.22.
23.
With 5-speed manual transmission:
With continuously variable transmission(CVT):
Cooling Syst em
Maint enance204
FILLER NECK
Fill up to here
1.08 US gal (4.1, 0.90 Imp gal)
1.06 US gal (4.0
, 0.88 Imp gal)

Fill the reservoir with a good-quality
windshield washer f luid. This
increases the cleaning capability and
prevents f reezing in cold weather.
Check the level in the windshield
washer reservoir at least monthly
during normal usage. In bad weather,
when you use the washers of ten,
check the level every time you stop
for fuel.
The windshield washer reservoir is
located behind the driver’s side
headlight. Check the reservoir’s f luid
level by removing the cap and
looking at the level gauge attached
to the cap.
The low washer level indicator will
light when the level is low (see page
).
Start the engine and hold it at
1,500 rpm until the radiator f an
comes on. Turn of f the engine.
Check the coolant level in the
radiator and add coolant if needed.
Install the radiator cap, and
tighten it fully.
If necessary, f ill the reserve tank
to the MAX mark. Install the
reserve tank cap.
65
24.
25.
26.
On Canadian models
CONT INUED
Maint enance
Cooling System, Windshield Washers
Windshield Washers
205
LEVEL GAUGE
WINDSHIELD WASHER RESERVOIR

The reading on your car’s
temperature gauge should stay in
the midrange under most conditions.
Itmaygohigherif youaredrivingup
a long steep hill on a very hot day. If
it climbs to the red mark, you should
determine the reason.Your car can overheat f or several
reasons, such as lack of coolant or a
mechanical problem. The only
indication may be the temperature
gauge climbing to or above the red
mark. Or you may see steam or
spray coming f rom under the hood.
In either case, you should take
immediate action. Saf ely pull to the side of the road.
Put the transmission in Neutral or
Park, and set the parking brake.
Turn of f the heating and cooling
system and all other accessories.
Turn on the hazard warning
indicators.
If you see steam and/or spray
coming f rom under the hood, turn
of f the engine.
1.
2.
T aking Care of t he Unexpect ed
If Your Engine Overheats
268
Steam and spray from an
overheated engine can
seriously scald you.
Do not open the hood if steam
is coming out.
Driving with the temperature gauge
reading at the red mark can cause
serious damage to your engine.

CONT INUED
If you do not see steam or spray,
leave the engine running and
watch the temperature gauge. If
the high heat is due to overloading
(climbing a long, steep hill on a
hot day with the A/C running, f or
example), the engine should start
to cool down almost immediately.
If it does, wait until the tempera-
ture gauge comes down to the mid-
point then continue driving.
If the temperature gauge stays at
the red mark, turn of f the engine.
Wait until you see no more signs
of steam or spray, then open the
hood.Look f or any obvious coolant leaks,
such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you f ind a leak, it
must be repaired bef ore you
continue driving (see
on page ).
If you don’t f ind an obvious leak,
check the coolant level in the
radiator reserve tank (see page ). If the level is below the
MIN mark, add coolant to halfway
between the MIN and MAX marks. If there was no coolant in the
reserve tank, you may also have to
add coolant to the radiator. Let the
engine cool down until the reading
reaches the middle of the
temperature gauge, or lower,
bef ore checking the radiator.
3.
4.
5. 6.
7.
8.
282
149
T aking Care of t he Unexpect ed
If Your Engine Overheats
Emergency
Towing
269
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.

Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. This
releases any remaining pressure in
the cooling system. After the
pressure releases, push down on
the cap and turn it until it comes
off.
Start the engine and set the
temperature control dial to
maximum. Add coolant to the
radiator up to the base of the f iller
neck. If you do not have the
proper coolant mixture available,
you can add plain water.
Remember to have the cooling
system drained and ref illed with
the proper mixture as soon as you
can.Put the radiator cap back on
tightly. Run the engine and watch
the temperature gauge. If it goes
back to the red mark, the engine
needs repair. (See
on page .)
If the temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the
MAX mark. Put the cap back on
tightly.
9.
10. 11.
12.
282
T aking Care of t he Unexpect ed
If Your Engine Overheats
Emergency
Towing
270