2004 HONDA CIVIC HYBRID coolant

If the IMA battery is too hot or too
cold, the IMA system shuts down to
protect the battery. This disables the
IMA assist and Auto Idle Stop, even
though the Battery Level Gauge may
show that the battery is well-charged.
Theref ore, those f unctions may not
operate when you f irst start driving
in very hot or cold weather.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, the reading may
reach near the red mark. If it
reaches the red (Hot) mark, pull
safely to the side of the road. Turn to
page f or instructions and
precautions on checking the engine’s
cooling system.
The battery temperature will
normalize af ter a f ew minutes of
driving, and the IMA system will
work normally.
This gauge shows you the status of
the Integrated Motor Assist (IMA).
When the IMA battery is being
charged, the lef t side of the gauge
illuminates. When the IMA is
assisting the engine, the right side of
the gauge illuminates. 187
Charge/Assist Gauge
Temperature Gauge
Gauges
Inst rument s and Cont rols63
IMA CHARGE
GAUGEIMA ASSIST
GAUGE

If the interior is very warm,you can
cool it down more rapidly by partially
opening the windows, turning on the
A/C, and setting the fan to
maximum speed in Fresh Air mode.
In AUTO mode, the system controls
the air f low direction automatically
between the dashboard vents and
the f loor vents.
The f low-through ventilation system
draws in outside air, circulates it
through the interior, then exhausts it
through vents near the rear side
panels.
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 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 through the
system. 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.
Air conditioning places an extra load
on the engine. Watch the engine
coolant temperature gauge (see page
). If it moves near the red zone,
turn of f the A/C until the gauge
reads normally. Select and Fresh Air mode.
Set the f an to the desired speed.
Adjust the warmth of the air with
the temperature control dial.
1.
2.
3.
4. 1.
2.
3.
4.
5. 2.
3. 1.
63
Ventilation
Using the Heater Using the A /C
Comf ort and Convenience Feat ures
Vents, Heating, and A/C
91

Wait a f ew minutes af ter turning the
engine of f bef ore you check the oil.Remove the dipstick (orange loop).
Wipe the dipstick with a clean
cloth or paper towel.
Insert it all the way back in its tube. 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 . 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
inf ormation on adding the proper
coolant.
Refer to on page f or inf ormation
on checking other items in your
Honda.
2.
3. 1.
4.
152 155
146
Oil Check
A dding Oil A dding
Engine Coolant Engine Coolant Check
Owner’s Maintenance
Checks
Service Station Procedures
Bef ore Driving118
DIPSTICK
UPPER MARK
LOWER MARKRESERVE TANK
MINMAX

To maximize f uel economy, your
Civic Hybrid has an Auto Idle Stop
f unction. Under certain conditions,
the engine will shut of f when you
come to a stop. Those conditions are:The engine coolant is nearly up to
normal operating temperature.
The vehicle’s speed is below 19
mph (30 km/h) and you are
pressing on the brake pedal to
come to a stop.
You depress the clutch pedal.
You are not pressing on the
accelerator pedal.
The IMA battery is charged
enough to operate the system. The Auto Idle Stop f unction may not
activate if the IMA battery
temperature is too hot or too cold. During Auto Idle Stop, the IMA
charge and power brake vacuum
reserve is monitored by the system.
If either drops below a desired level,
and the shif t lever is in Neutral, the
engine will restart so it can recharge
the IMA battery or replenish the
vacuum supply.
The ECON mode is selected, and
the outside temperature is above
f reezing, or the f an speed control
dial is off (see page ).
There is adequate vacuum reserve
f or the power brakes.
When these conditions are met, the
engine will shut of f as you come to a
stop. It will start again automatically
when you depress the clutch pedal
f ully and move the shif t lever to f irst
gear. There is no need to start the
engine with the ignition switch.
It is recommended that you move
the shift lever to Neutral and remove
your f oot f rom the clutch pedal while
you are stopped. Sitting with the
clutch pedal depressed and the shif t
lever in gear will cause the engine to
continue running, def eating the f uel
economy benef its of the Auto Idle
Stop f unction. 89
5-speed Manual T ransmission
Auto Idle Stop
Driving131

To maximize f uel economy, your
Civic Hybrid has an Auto Idle Stop
f unction. Under certain conditions,
the engine will shut of f when you
come to a stop. Those conditions are:The engine coolant is nearly up to
normal operating temperature.
The shift lever is in D or N.
You are not pressing on the
accelerator pedal.
The IMA battery is charged
enough to operate the system.
The ECON mode is selected, and
the outside temperature is above
f reezing, or the f an speed control
dial is off (see page ). There is adequate vacuum reserve
f or the power brakes.
When these conditions are met af ter
the vehicle speed has exceeded 10
mph (16 km/h), the engine will shut
of f as you are braking to a stop and
the vehicle speed goes below 5 mph
(8 km/h).
The engine will start again when you
release the brake pedal. It will also
restart, even if you are still pressing
the brake pedal, under these
conditions: You move the shif t lever f rom D
or N to R or L.
You are on an incline, and the
vehicle begins rolling. During Auto Idle Stop, the IMA
charge and power brake vacuum
reserve is monitored by the system.
If the vacuum reserve drops below
an optimal level, the engine will
restart to replenish the vacuum
supply. If the IMA charge drops
below an optimal level and the shif t
lever is in Neutral or Park (P), the
engine will restart to recharge the
IMA battery.
The Auto Idle Stop f unction may not
activate if the IMA battery
temperature is too hot or too cold.
You press the accelerator pedal.
89
Auto Idle Stop
Automatic Transmission (CVT)
Driving137

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 vehicle well
maintained and how to f ollow basic
maintenance saf ety precautions.......................
Maintenance Saf ety .144
.................
Maintenance Schedule . 145
....................
Maintenance Record .149
..............................
Fluid Locations .151
........................
Adding Engine Oil .152
.........
Changing the Oil and Filter . 153
..............................
Engine Coolant .155
....................
Windshield Washers .157
.....
Automatic Transmission Fluid . 158
........
Manual Transmission Fluid . 159
................
Brake and Clutch Fluid . 160
....................................
Hood Latch .161
.............................................
Lights .161
.......................................
Seat Belts .166
.....................................
Floor Mats .166
..................
Dust and Pollen Filter . 167
.................................
Wiper Blades .168
...............................................
Tires .169
...................
Checking the Battery . 175
.............................
Vehicle Storage .176
217
Maintenance
Maint enance143

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Your authorized Honda dealer
knows your vehicle best and can
provide competent, ef f icient service.
However, service at a dealer is not
mandatory to keep your warranties
in effect. Maintenance may be done
by any qualif ied service f acility or
skilled person to keep your
warranties in ef f ect. Keep all the
receipts as proof of completion, and
have the person who does the work
f ill out the Maintenance Record.
Check your warranty booklet f or
more inf ormation.
We recommend the use of Honda
parts and f luids whenever you have
maintenance done. U.S. Vehicles:
According to state and federal
regulations, f ailure to perf orm
maintenance on the items marked
with will not void your emissions
warranties. However, Honda
recommends that all maintenance
services be perf ormed at the
recommended time or mileage
period to ensure long-term reliability.
Youshouldcheckthefollowing
items at the specif ied intervals. If
you are unsure of how to perf orm
any check, turn to the appropriate
page listed.
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 .
Brakes Check the f luid level
monthly. See page .
Tires Check the tire pressure
monthly. Examine the tread f or
wear and foreign objects. See page .
Lights Check the operation of
the headlights, parking lights,
taillights, high-mount brake light,
and license plate lights monthly.
See page . Automatic transmission (CVT)
Check the f luid level monthly. See
page . 118
118
158 160
169
161
Maintenance Schedule
Maint enance
Servicing Your Vehicle Maintenance, replacement, or
repair of emissions control
devices and systems may be done
by any automotive repair
establishment or individual using
parts that are ‘‘certif ied’’ to EPA
standards.Owner’s Maintenance Checks
146

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Follow the Normal Maintenance
Schedule if the severe driving
conditions specif ied in the Severe
Conditions Maintenance Schedule on
the next page do not apply.
NOT E: If you only OCCASIONALLY
drive under a ‘‘severe’’ condition, you
should f ollow the Normal Conditions
Maintenance Schedule.
Follow the
Maintenance Schedule f or Severe
Conditions.
Maint enance
Canadian Owners
147
miles x 1,000
km x 1,000
Service the items listed at the indicated distance (or time, if given).
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Every 10,000 miles (16,000 km)(
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Check inflation and condition once a month Check oil and coolant at each fuel stop
10
16
20
32 40
6450
80 70
112 80
128 100
160
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130
208 140
224
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Every 160,000 miles (256,000 km)
30
48
60
96
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192
90
144 150
240
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See information on maintenance and
emission warranty on page .
At 120,000 miles (192,000 km) or 10 years, then every 60,000 miles (96,000 km) or 5 years
Every 3 years (independent of mileage) 110
176
Check engine oil and coolant
Check tires
Replace engine oil
Rotate tires (follow pattern on page 172)
Replace engine oil filter
Check front and rear brake wear
Check parking brake adjustment
Inspect the following items: Tie rod ends, steering gear box, and boots
Suspension components
Driveshaft boots
Brake hoses and lines (including ABS)
All fluid levels and condition of fluids
Exhaust system
Fuel lines and connections
Inspect and adjust drive belts
Replace dust and pollen filter
Replace air cleaner element
Replace spark plugs
Inspect valve clearance
Replace CVT fluid
Replace manual transmission fluid
Inspect idle speed
Inspect idle speed
Replace engine coolant
Replace brake fluid :
1: 2: For ULEV model 146
For AT-PZEV model
1
2
Maintenance Schedule for Normal Conditions