2010 HONDA CIVIC HYBRID engine coolant

Fluid Locations
284
RADIATOR CAP
ENGINE OIL DIPSTICK
(Orange loop)
WASHER FLUID
(Blue cap) AUTOMATIC
TRANSMISSION (CVT)
FLUID DIPSTICK
(Yellow loop)
ENGINE COOLANT
RESERVOIR
BRAKE FLUID
(Black cap)
ENGINE OIL FILL CAP
09/07/15 11:08:05 31SNC640_289
2010 Civic Hybrid

Turn of f the engine, let it sit f or
several minutes, then check the oil
level on the dipstick. If necessary,
add more oil.
Put the under-cover back in place
and reinstall the nine holding clips.
Locktheclipssecurelybypushing
on the center of each clip.If the coolant level in the reserve
tank is at or below the MIN line, add
coolant to bring it up to between the
MIN and MAX lines. Inspect the
cooling system f or leaks. If Honda antif reeze/coolant is not
available, you may use another
major-brand non-silicate coolant as a
temporaryreplacement.Makesureit
is a high-quality coolant
recommended f or aluminum engines.
Continued use of any non-Honda
coolant can result in corrosion,
causingthecoolingsystemto
malf unction or f ail. Have the cooling
system f lushed and ref illed with
Honda antif reeze/coolant as soon as
possible.
Always use Honda Long-lif e Anti-
f reeze/Coolant Type 2. This coolant
is pre-mixed with 50 percent
antif reeze and 50 percent distilled
water. Never add straight antif reeze
or plain water.
11.
12.
Only on U.S. models
A dding Engine Coolant
Changing the Oil and Filter, Engine Coolant
288
RESERVE TANK
Improper disposal of engine oil can be
harmf ul to the environment. If you
change your own oil, please dispose of
the used oil properly. Put it in a sealed
container and take it to a recycling
center. Do not discard it in a trash bin
or dump it on the ground.
09/07/15 11:08:42 31SNC640_293
2010 Civic Hybrid

If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.The coolant level should be up to
the base of the f iller neck. Add
coolant if it is low.
Do not add any rust inhibitors or
other additives to your vehicle’s
cooling system. They may not be
compatible with the coolant or
engine components. Pour coolant into the reserve tank.
Fill it to half way between the MAX
and MIN marks. Put the cap back
on the reserve tank. Pourthecoolantslowlyand
caref ully so you do not spill any.
Clean up any spill immediately; it
could damage components in the
engine compartment.
Make sure the engine and radiator
are cool.
Relieve any pressure in the cooling
system by turning the radiator cap
counterclockwise, without
pressing down.
Remove the radiator cap by
pushing down and turning
counterclockwise. Put the radiator cap back on, and
tighten it fully.
1.
2.
3. 4.
5.
6.
Engine Coolant
Maint enance
289
RADIATOR CAP
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.
09/07/15 11:08:51 31SNC640_294
2010 Civic Hybrid

If youreplacedaheadlightbulbon
the driver’s side, reinstall the
engine coolant reserve tank.To change the bulb on the driver’s
side, start the engine, turn the
steering wheel all the way to the
right, then turn of f the engine. To
change the bulb on the passenger’s
side, turn the steering wheel to the
lef t.
Use a f lat-tip screwdriver to
remove the two holding clips f rom
the inner f ender, and pull the inner
f ender cover back.
Push the electrical connector back
onto the bulb. Make sure it is on
all the way.
Install the new bulb, and turn it
one-quarter turn clockwise to lock
it in place.
Turn on the headlights to test the
new bulb.
Remove the electrical connector
f rom the bulb by pushing on the
tab and pulling the connector
down. Remove the bulb f rom the
headlight assembly by turning it
one-quarter turn counterclockwise.
2.
3.
2.
4.
5.
6.
7.
1.
L ow Beam Headlight
Lights
294
TABCONNECTORBULB HOLDING CLIP
09/07/15 11:09:36 31SNC640_299
2010 Civic Hybrid

The reading on the vehicle’s
temperature gauge should stay in
the midrange. If it climbs to the red
mark, you should determine the
reason (hot day, driving up a steep
hill, etc.).
When the instant f uel economy is
shownonthedisplay,the
temperature gauge will interrupt on
the display and blink for several
times if the coolant temperature
rises to 224°F (118°C) or more. At
the same time, the beeper sounds
once.
If your vehicle overheats, you should
take immediate action. The only
indicationmaybethetemperature
gauge climbing to or above the red
mark. Or you may see steam or
spray coming f rom under the hood.If you see steam and/or spray
coming f rom under the hood, turn
of f the engine. Wait until you see
no more signs of steam or spray,
then open the hood.
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,
the engine should start to cool
down almost immediately. If it
does, wait until the temperature
gauge reading comes down to the
midpoint, then continue driving.
If the temperature gauge stays at
the red mark, turn of f the engine.
Saf ely pull to the side of the road.
Put the transmission in Park, and
set the parking brake. Turn of f all
the accessories, and turn on the
hazard warning lights.
1. 2.
3.
4.
CONT INUED
If theEngineOverheats
T aking Care of t he Unexpect ed
321
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.
09/07/15 11:13:25 31SNC640_326
2010 Civic Hybrid

Start the engine, and set the
interior temperature 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 check
the temperature gauge. If it goes
back to the red mark, the engine
needs repair (seeon 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.
Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. Af ter the
pressure releases, push down on
the cap, and turn it until it comes
off.
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 ). Add coolant if the level is
below the MIN mark.
If there was no coolant in the
reserve tank, you may need 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. 8. 9.
7. 6. 10.
11.
5.
333
246 333
If theEngineOverheats
Emergency
Towing
Emergency
Towing
322
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.
09/07/15 11:13:33 31SNC640_327
2010 Civic Hybrid

Î
Î
Î
Î
Specif ications
338
Dimensions
Weights
Engine Seating CapacitiesCapacities
176.7 in (4,489 mm)
69.0 in (1,752 mm)
56.3 in (1,430 mm)
106.3 in (2,700 mm)
59.1 in (1,501 mm)
60.2 in (1,529 mm)
Length
Width
Height
Wheelbase
Track
Gross vehicle weight rating See the certification label attached
to the driver’s doorjamb. 3.0 US qt (2.8
)
5.4 US qt (5.1)
1.255 US gal (4.75
)
1.59 US gal (6.0)
3.4 US qt (3.2
)
3.2 US qt (3.0)
4.0 US qt (3.8)
12.3 US gal (46.6
)
Type
BorexStroke
Displacement
Compression ratio
Spark plugs SK20HPR-L11 ILFR6J-11K10.8
82 cu-in (1,339 cm
)
2.87 x 3.15 in (73.0 x 80.0 mm)
Water cooled 4-stroke SOHC i-VTEC
gasoline engine with Hybrid Electric
Total
Front
Rear
5
2
3Fuel tank
Engine
coolant
Engine oil
Automatic
transmission
fluid
Windshield
washer
reservoir
Excluding the oil remaining in the engine Including the coolant in the reserve tank and that remaining in the
engine
Reserve tank capacity: 0.11 US gal (0.4
)
2.6 US qt (2.5
)
4.8 US qt (4.5)
Front
Rear
Approx.
1:
2:
(NGK) (DENSO) Change
Total
Change
Including filter
Without filter
Total
Change
Total
U.S. Vehicles
Canada Vehicles
1
2
09/07/15 11:15:23 31SNC640_343
2010 Civic Hybrid

Bulb Replacement..........................
Back-up Lights .297
.....................
Brake Lights .296, 297
........
Front Side Marker Lights . 295
...........
Front Turn Signal Light . 295
.................................
Headlights .293
..........................
Parking Lights .295
.........
Rear Side Marker Lights . 296
..........
Rear Turn Signal Lights . 296
............................
Specif ications .339
..............................
Bulbs, Halogen .293
.........................................
Card, PC .170
............................
Capacities Chart .338
.............
Carbon Monoxide Hazard . 52
.............................
Carrying Cargo .252
.............
CAUTION, Explanation of . iii
..................................
Ceiling Light .102
........................
Certif ication Label .336
............................................
Chains .308
....................
Changing a Flat Tire .313
Changing Oil ........................................
How to .286
......................................
When to .277 ...
Charging System Indicator . 62,324
..............
Check Fuel Cap Indicator . 69
............
Checklist, Bef ore Driving . 258
.....................................
Child Saf ety .34
Child Seats .............
LATCH Anchor System . 43
.............................
Lower Anchor .43
............................
Tether Anchor .47
..................
Childproof Door Locks . 82
....................
Cleaning the Wheels .303
.........................
Clock, Setting the .212
........................
CO in the Exhaust .345
............
Cold Weather, Starting in . 259
..............................
Compact Spare .312
.............
Controls, Instruments and . 55
Coolant ........................................
Adding .288
....................................
Checking .246
.........................
Proper Solution .288
...................
Temperature Gauge . 66
Crankcase Emissions Control ........................................
System .345
............
Cruise Control Operation . 214
....
Customer Service Inf ormation . 352...............
DANGER, Explanation of . iii
...................................
Dashboard .3, 56
................
Daytime Running Lights . 75
............
Def ects, Reporting Saf ety . 354
........................
Def og and Def rost .108
................
Def ogger, Rear Window . 76
..............
Def rosting the Windows . 108
....................................
Dimensions .338
...............
Dimming the Headlights . 74
Dipstick ..........
Automatic Transmission . 291
..................................
Engine Oil .245
..........................
Directional Signals .74
Disc Brake Pad Wear ...................................
Indicators .268
............................
Disc Player .121, 160
..................
Display Change Button . 66
.....................
Disposal of Used Oil .288
Doors .
Auto Door Locking/Unlocking . 82
.....................
Auto Door Locking .82
.................
Auto Door Unlocking . 85
..............
Locking and Unlocking . 81
......................
Power Door Locks .81
Index
C D
II
09/07/15 11:17:54 31SNC640_363
2010 Civic Hybrid