2003 HONDA CIVIC HYBRID engine mount

This shows the temperature of the
engine’s coolant. During normal
operation, the reading should be in
the middle of the gauge. In severe
driving conditions, such as very hot
weather or a long period of uphill
driving, the reading may reach near
the red mark. If it reaches the red
(Hot) mark, pull saf ely to the side of
the road. Turn to page for
instructions and precautions on
checking the engine’s cooling
system.
This shows how much f uel you have.
It is most accurate when the car is on
level ground. It may show slightly
more or less than the actual amount
whenyouaredrivingoncurvyor
hilly roads.
You can temporarily turn of f the
Current Fuel Mileage display.
To turn it off:
Turn the ignition switch to ON (II).
If the engine is running, make
sure the transmission is in Neutral
(manual) or Park (automatic) and
the parking brake is set.
Use the Select/Reset button to
select the odometer display.
Press and hold the Select/Reset
button f or about 10 to 15 seconds,
then release it. The Current Fuel
Mileage display will turn of f .
The display will turn back on when
you repeat the same procedure on
the step 3. 268
1.
2.
3.
Inst rument s and Cont rols
Temperature Gauge
Fuel Gauge
T urning Of f the Mileage Display
Gauges
71
Avoid driving with an extremely low
f uel level. Running out of f uel could
cause the engine to misf ire, damaging
the catalytic converter.

The air conditioning puts an extra
load on the engine which makes it
usemorefuel.Turnoff theA/Cto
cutdownonairconditioninguse.
Use the f low-through ventilation
when the outside air temperature is
moderate.
If air conditioning is needed, you can
save some f uel by using the A/C in
‘‘ECON’’ mode. When the outside
temperature is above 41°F (5°C),
this mode allows the Auto Idle Stop
f unction to shut of f the engine when
the vehicle is stopped, resulting in
fuel savings.
Depending on traf f ic conditions, try
to maintain a constant speed. Every
time you slow down and speed up,
your car uses extra f uel. Use the
cruise control, when appropriate, to
increase f uel economy.
Wind resistance causes vehicles to
usemorefuelathigherspeeds.
Driving at moderate speeds on the
highway reduces wind resistance
and conserves f uel.
A cold engine uses more f uel than a
warm engine. It is not necessary to
‘‘warm-up’’ a cold engine by letting it
idle f or a long time. You can drive
away in about a minute, no matter
how cold it is outside. The engine
will warm up f aster, and you get
better f uel economy. To cut down on
the number of ‘‘cold starts,’’ try to
combine several short trips into one. You may notice that using the A/C
causes a greater drop in f uel
economy than you are used to in
other vehicles. Although the amount
of extra f uel used by the A/C load on
the engine is no greater than other
vehicles, it is more noticeable
because of your Civic Hybrid’s
excellent f uel mileage. Using the
A/C in hot weather may result in
f uel economy that is lower than
expected.
Fuel Economy
Bef ore Driving151

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Engine oil level Check every
time you fill the fuel tank. See
page .
Engine coolant level Check the
radiator reserve tank every time
you f ill the f uel tank. See page .
Windshield washer f luid Check
the level in the reservoir monthly.
If weather conditions cause you to
use the washers f requently, check
the reservoir each time you stop
f or f uel. See page .
Youshouldcheckthefollowing
items at the specif ied intervals. If
you are unsure of how to perf orm
any check, turn to the page given.
Lights Check the operation of
the headlights, parking lights,
taillights, high-mount brake light,
turn signals, brake lights, and
license plate lights monthly. See
page . Tires Check the tire pressure
monthly. Examine the tread f or
wear and foreign objects. See page.
Brakes Check the f luid level
monthly. See page . Automatic transmission (CVT)
Check the f luid level monthly. See
page . 148
149
205 209
206 225
232
Owner Maintenance Checks
Maint enance193

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

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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)

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Connect one jumper cable to the
positive ( ) terminal on your
Honda’s battery. Connect the
other end to the positive ( )
terminal on the booster battery.
If the booster battery is in another
vehicle, have an assistant start
that vehicle and run it at a fast idle.
The numbers in the illustration show
you the order to connect the jumper
cables.
Connect the second jumper cable
to the negative ( ) terminal on
the booster battery. Connect the
other end to the metal projection
on the side mount behind the
passenger side headlight as shown.
Do not connect this jumper cable
to any other part of the engine.
3.
4.
5.
Jump Starting
T aking Care of t he Unexpect ed266
BOOSTER BATTERY

The emissions control systems are
covered by warranties separate from
the rest of your car. Read your
warranty manual f or more informa-
tion.
The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation and Three Way
Catalytic Converter. These four
systems work together to control the
engine’s combustion and minimize
the amount of HC, CO, and NOx that
comes out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.
The PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Engine Control Module (ECM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
f uel to inject under all operating
conditions. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO and NOx produced.
The Exhaust Gas Recirculation
(EGR) system takes some of the
exhaust gas and routes it back into
the intake manif old. Adding exhaust
gas to the air/f uel mixture reduces
the amount of NOx produced when
the f uel is burned.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), dinitrogen
(N ), and water vapor.
The emissions control systems are
designed and certif ied to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Honda replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your car.
2
2
Replacement Parts
Exhaust Emissions Controls
Emissions Cont rols
T echnical Inf ormation
PGM-FI Syst em Ignit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
295

The three way catalytic converter
contains precious metals that serve
as catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred to
as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Honda part
or its equivalent.
The three way catalytic converter
must operate at a high temperature
for the chemical reactions to take
place. It can set on f ire any com-
bustible materials that come near it.
Park your car away f rom high grass,
dry leaves, or other f lammables.A defective three way catalytic
converter contributes to air pollution,
and can impair your engine’s per-
f ormance. Follow these guidelines to
protect your car’s three way catalytic
converter.
Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converter inef f ective. Keep the engine tuned-up.
Have your car diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
T echnical Inf ormation
Three Way Catalytic Converter
296
THREE WAY CATALYTIC CONVERTERS