2003 HONDA CIVIC HATCHBACK engine coolant

The tachometer shows the engine
speed in revolutions per minute
(rpm). To protect the engine f rom
damage, never drive with the
tachometer needle in the red zone.
The needle returns to the bottom
after you turn off the ignition. The
gauge shows the f uel level reading
immediately af ter you turn the ignition switch back ON (II).
This shows the temperature of the
engine’s coolant. During normal
operation, the pointer should rise
from the bottom mark to about the
middle of the gauge. In severe
driving conditions, such as very hot
weather or a long period of uphill
driving, the pointer may rise to the
upper blue zone. 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 vehicle
is on level ground. It may show
slightly more or less than the actual
amount when you are driving on
curvy or hilly roads.
232
Gauges
Inst rument s and Cont rolsT achometer
Fuel Gauge Temperature Gauge
64 MAINTENANCE
REQUIRED
INDICATOR
TACHOMETER SPEEDOMETER
TEMPERATURE GAUGE
ODO/TRIPMETER
U.S model shown SELECT/RESET BUTTONFUEL GAUGE
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.

CONT INUED
The f low-through ventilation system
draws in outside air, circulates it
through the interior, then exhausts it
through vents near the hatch.Turn the temperature control dial
all the way to the lef t.
Make sure the A/C is of f .
Select and Fresh Air mode.
Set the f an to the desired speed.
The outside air intakes f or the
heating and cooling system are at
the base of the windshield. Keep
these clear of leaves and other
debris.
It is best to leave the system in Fresh
Air mode under almost all conditions.
Keeping the system in Recirculation
mode, particularly with the A/C of f ,
can cause the windows to fog up.
Switch to Recirculation mode when
you are driving through smoky or
dusty conditions, then switch back to
Fresh Air mode when the condition
clears.
This section covers how to set up the
system controls f or ventilation,
heating, cooling, dehumidif ying, and
def rosting.
The engine must be running f or the
heater and air conditioning to
generate hot and cold air. The heater
uses engine coolant to warm the air.
If the engine is cold, it will be several
minutes bef ore you f eel warm air
coming from the system.
The air conditioning does not rely on
engine temperature.
1. 2. 3.
Heating and Cooling
Comf ort and Convenience Feat ures
Vent ilat ion
How to Use the System
99
MODE CONTROL
DIAL
TEMPERATURE
CONTROL DIAL
FAN CONTROL DIAL RECIRCULATION BUTTON
AIR CONDITIONING
(A/C) BUTTON

When the interior has cooled down
to a more comf ortable temperature,
close the windows and set the
controls as described f or normal
cooling.Air conditioning places an extra load
on the engine. Watch the engine
coolant temperature gauge (see page
) when driving in stop-and-go
traf f ic or climbing a long, steep hill.
If it moves near the red zone, turn
of f the A/C until the gauge reads
normally.
If the interior is very warm f rom
beingparkedinthesun,youcancool
it down more rapidly by setting up
the controls this way: Turn on the A/C by pressing the
button. The light in the button
comesonwhenafanspeedis
selected.
Make sure the temperature
control dial is all the way to the left.
Select .
If the outside air is humid, select
Recirculation mode. If the outside
air is dry, select Fresh Air mode.
Set the f an to the desired speed.
Start the engine.
Turn on the A/C by pressing the
button. Make sure the tempera-
ture control dial is turned all the
way to the left.
Set the f an to maximum speed.
Open the windows partially. Select
and Fresh Air mode.
1.2. 3. 4.
1. 2. 3. 4. 5.
64
Comf ort and Convenience Feat ures
Heating and Cooling
T o Cool wit h A /C
100 AIR CONDITIONING
(A/C) BUTTON
RECIRCULATION BUTTON
MODE CONTROL
DIAL
TEMPERATURE
CONTROL DIAL FAN CONTROL DIAL

These settings direct all the air f low
to the defroster vents at the base of
the windshield and the side window
def roster vents. The air f low will get
warmer and clear the windows faster
as the engine warms up. You can
close the side vents with the dial
beside each vent. This will send
more warm air to the windshield
defroster vents.
For saf ety, make sure you have a
clear view through all the windows
bef ore driving away.You should shut the system
completely of f only f or the f irst f ew
minutes of driving in cold weather,
until the engine coolant warms up
enough to operate the heater. Keep
the fan on at all other times so stale
air does not build up in the interior.
To shut of f the system temporarily,
turn the fan speed and temperature
control dials all the way to the lef t.
Heating and Cooling
Comf ort and Convenience Feat ures
To Turn Everything Of f
103

Bef ore you begin driving your Honda,
youshouldknowwhatgasolineto
use, and how to check the levels of
important f luids. You also need to
know how to properly store luggage
or packages. The inf ormation in this
section will help you. If you plan to
add any accessories to your car,
please read the inf ormation in this
section f irst..............................
Break-in Period . 128
.........................................
Gasoline . 128
.........
Service Station Procedures . 129
................
Filling the Fuel Tank . 129
....................
Opening the Hood . 130
...............................
Oil Check . 132
.........
Engine Coolant Check . 133
...............................
Fuel Economy . 134
.....................
Vehicle Condition . 134
...........................
Driving Habits . 134
...
Accessories and Modif ications . 135
.............................
Carrying Cargo . 137
Bef ore Driving
Bef ore Driving 127

Refer toon page f or inf ormation
on checking other items in your
Honda.
Look at the coolant level in the
radiator reserve tank. Make sure it is
between the MAX and MIN lines. If
it is below the MIN line, see
on page f or
informationonaddingtheproper
coolant.
Remove the dipstick again and
check the level. It should be
between the upper and lower
marks.
If it is near or below the lower mark,
see on page .
Insert it all the way back in its tube. 4.
3.
167171
165
Service Station Procedures
Bef ore Driving
Owner Maintenance
Checks A dding
Engine Coolant
A dding Oil
Engine Coolant Check
133
UPPER MARK
LOWER MARK MAX
RESERVE
TANK
MIN

This section also includes
Maintenance Schedules f or normal
driving and severe driving conditions,
a Maintenance Record, and instruc-
tions f or simple maintenance tasks
you may want to take care of
yourself .
If you have the skills and tools to per-
f orm more complex maintenance
tasks on your Honda, you may want
to purchase the Service Manual. See
page f or inf ormation on how to
obtain a copy, or see your Honda
dealer.
This section explains why it is
important to keep your car well
maintained and how to f ollow basic
maintenance saf ety precautions.
......................
Maintenance Saf ety . 154
.
Important Safety Precautions . 155
.................
Maintenance Schedule . 156
...
Required Maintenance Record . 163
.......
Owner Maintenance Checks . 165
..............................
Fluid Locations . 166
......................................
Engine Oil . 167
..................................
Adding Oil . 167
....................
Recommended Oil . 167
..............................
Synthetic Oil . 168
....................................
Additives . 168
.....
Changing the Oil and Filter . 169
.............................
Cooling System . 171
............
Adding Engine Coolant . 171
.......
Replacing Engine Coolant . 173
....................
Windshield Washers . 176
.......................
Transmission Fluid . 177
................
Brake and Clutch Fluid . 177
............................
Brake System . 178
...........................
Clutch System . 178
.....................
Air Cleaner Element . 179
....................................
Hood Latch . 181
....................................
Spark Plugs . 181
..............................
Replacement . 181
............................
Specif ications . 183
...........................................
Battery . 184 .................................
Wiper Blades . 186
..............
Air Conditioning System . 189
..................
DustandPollenFilter .190
.....................................
Drive Belts . 192
...............................................
Tires . 193
......................................
Inf lation . 193
Recommended TirePressures f or Normal ...........................
Driving . 194
Tire Pressure Adjustment ....
f or High Speed Driving . 194
..................................
Inspection . 195
..............................
Maintenance . 195
.............................
Tire Rotation . 196
...
Replacing Tires and Wheels . 197
......................
Wheels and Tires . 198
..........................
Winter Driving . 198
.............................
Snow Tires . 199
............................
Tire Chains . 199
.............................................
Lights . 200
.....................
Headlight Aiming . 202
........................
Replacing Bulbs . 202
...........................
Storing Your Car . 212
265
Maintenance
Maint enance
153

Be sure
there is adequate ventilation
whenever you operate the engine.
Let the
engine and exhaust system cool
bef ore touching any parts.
Do
not run the engine unless in-
structed to do so. Read the instructions before you
begin, and make sure you have the
tools and skills required.
To reduce the possibility of f ire or
explosion, be caref ul when working
around gasoline or batteries. Use a
commercially available degreaser or
parts cleaner, not gasoline, to clean
parts. Keep cigarettes, sparks, and
flames away from the battery and all
f uel-related parts.
Bef ore you begin any maintenance,
make sure your car is parked on
level ground and that the parking
brake is set. Also, be sure the engine
is of f . This will help to eliminate
several potential hazards:
You should wear eye protection and
protective clothing when working
near the battery or when using
compressed air.When adding or replacing f luids
within the engine compartment, such
as oil and coolant, be caref ul of
spillage.
This may lead to damage parts in the
engine compartment.
Maintenance Saf ety
Maint enance
Important Saf ety Precautions
Carbon monoxide poisoning
f rom engine exhaust.
Burns f rom hot parts.
Injury f rom moving parts.
155