2009 HONDA CIVIC SEDAN sensor

Store or secure all items that could
be thrown around and hurt
someone during a crash.Distribute cargo evenly on the
f loor of the trunk, placing the
heaviest items on the bottom and
as far forward as possible.
If you carry large items that
prevent you f rom closing the trunk
lid, exhaust gas can enter the
passenger area. To avoid the
possibility of
, f ollow the instructions
on page .
If youfolddownthebackseat,tie
down items that could be thrown
about the vehicle during a crash or
sudden stop.
Do not put any items on top of the
trunk panel. They can block your
view and be thrown around the
vehicle during a crash.
Be sure items placed on the f loor
behind the f ront seats cannot roll
underneath and interf ere with the
proper operation of the seats, the
sensors under the seats, or the
driver’s ability to operate the
pedals.
Keep the glove box closed while
driving. If it is open, a passenger
could injure their knees during a
crash or sudden stop. 51
Carrying Items in the Passenger
Compartment
Carrying Cargo in the Trunk
carbon monoxide
poisoning
Carrying Cargo
262
\f—\f—\fy

\f
y
(#\fy\fy
2009 Civic Sedan

When the low tire pressure indicator
is on, one or more of your tires is
signif icantly underinf lated. You
should stop and check your tires as
soon as possible, and inf late them to
the proper pressure as indicated on
the vehicle’s tire inf ormation placard.
If you think you can saf ely drive a
short distance to a service station,
proceed slowly, and inf late the tire to
the recommended pressure shown
on the driver’s doorjamb.
If the tire is f lat, or if the tire
pressure is too low to continue
driving, replace the tire with the
compact spare tire (see page ).
If you cannot make the low tire
pressure indicator go out af ter
inf lating the tires to the specif ied
values, have your dealer check the
system as soon as possible.Driving on a signif icantly under
inf lated tire causes the tire to
overheat and can lead to tire failure.
Underinf lation also reduces f uel
efficiency and tire tread life, and may
af f ect the vehicle’s handling and
stopping ability.
Becausetirepressurevariesby
temperature and other conditions,
the low tire pressure indicator may
come on unexpectedly.
Each tire has its own pressure
sensor (not including the spare tire).
If the air pressure of a tire becomes
signif icantly low while driving, the
sensor in that tire immediately sends
a signal that causes the low tire
pressure indicator to come on.
Your vehicle is equipped with a tire
pressure monitoring system (TPMS)
that turns on every time you start the
engine and monitors the pressure in
your tires while driving.
336
U.S. models onlyLow Tire Pressure
Indicator
Tire Pressure Monitoring System (TPMS)
280
\f—\f—\fy

y
(#\fy\fy
2009 Civic Sedan

As required by the FCC:This device complies with Part 15 of theFCC rules. Operation is subject to thef ollowing two conditions: (1) This devicemay not cause harmf ul interf erence, and(2) this device must accept anyinterf erence received, includinginterf erence that may cause undesiredoperation.
Changes or modif ications not expresslyapproved by the party responsible f orcompliance could void the user’sauthority to operate the equipment.
This device complies with IndustryCanada Standard RSS-210.Operation is subject to the f ollowing twoconditions: (1) this device may not causeinterf erence, and (2) this device mustaccept any interf erence that may causeundesired operation of the device.
If you have a f lat tire, the low tire
pressure indicator will come on.
Replace the flat tire with the
compact spare tire (see page ).
Each wheel (except the compact
sparetirewheel)isequippedwitha
tire pressure sensor mounted inside
the tire behind the valve stem. You
must use TPMS specif ic wheels. It is
recommended that you always have
your tires serviced by your dealer or
qualif ied technician.
After you replace the flat tire with
thecompactsparetire,thelowtire
pressure indicator stays on. This is
normal; the system is not monitoring
the spare tire pressure. Manually
check the spare tire pressure to be
sure it is correct. Af ter several miles
(kilometers) driving with the
compact spare tire, the TPMS
indicator comes on and the low tire
pressure indicator goes of f . The low tire pressure indicator or
the TPMS indicator will go off, after
several miles (kilometers) driving,
when you replace the spare tire with
the specif ied regular tire equipped
with the tire pressure monitor sensor.
Never use a puncture-repairing agent
in a f lat tire. If used, you will have to
replace the tire pressure sensor.
Havetheflattirerepairedbyyour
dealer as soon as possible.
336
Changing a T ire with T PMS
Tire Pressure Monitoring System (TPMS)
282
\f—\f—\fy

\fy
(#\fy\fy
2009 Civic Sedan

If equippedOn models with A/C
This f ilter removes the dust and
pollenthatisbroughtinfromthe
outside through the heating and
cooling system.
Have your dealer replace the filter
when this service is indicated by a
maintenance message on the
inf ormation display. It should be
replaced every 15,000 miles (24,000
km) if you drive primarily in urban
areas that have high concentrations
of soot in the air, or if the f low f rom
the heating and cooling system
becomeslessthanusual.
The driver’s f loor mat that came
with your vehicle hooks over the
f loor mat anchors. This keeps the
f loor mat f rom sliding f orward and
possibly interf ering with the pedals
or making the f ront passenger’s
weight sensors inef f ective. If you use non-Honda f loor mats,
make sure they f it properly and that
theycanbeusedwiththefloormat
anchors. Do not put additional f loor
mats on top of the anchored mats.
If you remove the driver’s f loor mat,
make sure to re-anchor it when you
putitbackinyourvehicle.
Floor Mats Dust and Pollen Filter
Floor Mats, Dust and Pollen Filter
320
\f—\f—\fy


\fy
(#\fy\fy
2009 Civic Sedan

Place the flat tire face down in the
spare tire well.
Remove the spacer cone f rom the
wing bolt, turn it over, and put it
back on the bolt.
Securetheflattirebyscrewing
the wing bolt back into its hole.Lower the trunk f loor, and close
the trunk lid.
Store the jack and tools in the tool
case. Place the tool case in the
center of the f lat tire.
Store the wheel cover or center
cap in the trunk. Make sure it does
not get scratched or damaged.
Your vehicle’s original tire has a
tire pressure monitoring system
sensor. To replace a tire, ref er to
(see
page ).
15.
16.
17. 18. 19.
20.
21.
282
CONT INUED
On U.S. models
Changing a Flat Tire
Changing a T ire with T PMS
T aking Care of t he Unexpect ed
341
WING BOLT
For spare
tire
For normal
tire SPACER
CONE
Loose items can fly around the
interiorinacrashandcould
seriously injure the occupants.
Store the wheel, jack, and tools
securely before driving.
\f—\f—\fy

\fy
(#\fy\fy
2009 Civic Sedan

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 vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion.
The PGM-FI system uses sequential
multiport f uel injection. It has three
subsystems: air intake, engine
control, and f uel control. The
powertrain control module (PCM) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles 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 emissions controls
includethreeorfoursystems:
PGM-FI, ignition timing control,
exhaust gas recirculation, and three
way catalytic converter. These f our
systems work together to control the
engine’s combustion and minimize
the amount of HC, CO, and NOx that
come out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.
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 ), nitrogen
(N ), and water vapor.
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.
2
2
Except Si model
Exhaust Emissions Controls Replacement Parts
PGM-FI System Ignit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
Emissions Cont rols
Technical Inf ormation
373
\f—\f—\fy
y
(#\fy\fy
2009 Civic Sedan