2012 HONDA ACCORD COUPE Owners Manual

Diagnosing why the engine won’t
start f alls into two areas, depending
on what you hear when you turn the
ignition switch to the START (III)
position:You hear nothing, or almost
nothing. The engine’s starter
motor does not operate at all, or
operates very slowly.
You can hear the starter motor
operating normally, or the starter
motor sounds like it is spinning
f aster than normal, but the engine
does not start up and run. When you turn the ignition switch to
the START (III) position, you do not
hear the normal noise of the engine
trying to start. You may hear a
clicking sound, a series of clicks, or
nothing at all.
Check these things:
Check the transmission interlock.
If you have a manual transmission,
the clutch pedal must be pushed
all the way to the f loor or the
starter will not operate. With an
automatic transmission, it must be
in Park or neutral.
Turn the ignition switch to the ON
(II) position. Turn on the
headlights, and check their
brightness. If the headlights are
very dim or do not come on at all,
the battery is discharged. See on page . Turn the ignition switch to the
START (III) position. If the
headlights do not dim, check the
condition of the f uses. If the f uses
areOK,thereisprobably
something wrong with the
electrical circuit f or the ignition
switch or starter motor. You will
need a qualif ied mechanic to
determine the problem (see
on page ).
If the headlights dim noticeably or
go out when you try to start the
engine, either the battery is dis-
charged or the connections are
corroded. Check the condition of the
battery connections (see page ).
You can then try jump starting the
vehicle from a booster battery (see
page ).
400 400
387415
If theEngineWon’tStart
Nothing Happens or the Starter
Motor Operates Very Slowly
Jump Starting Emergency T owing
398

T aking Care of t he Unexpect ed
2012 Accord Coupe

In this case, the starter motor’s
speed sounds normal, or even f aster
than normal, when you turn the
ignition switch to the START (III)
position, but the engine does not run.Are you using the proper starting
procedure? Ref er to on page .
Are you using a properly coded
key? An improperly coded key will
cause the immobilizer system
indicator in the instrument panel
to blink rapidly (see page ).
Do you have f uel? Check the f uel
gauge; the low f uel indicator may
not be working.
There may be an electrical
problem, such as no power to the
f uel pump. Check all the f uses
(see page ). If youfindnothingwrong,youwill
need a qualif ied technician to f ind
the problem. See
on page .
78
305
408 415
If theEngineWon’tStart
T he Starter Operates Normally
Starting the
Engine Emergency
Towing
399

T aking Care of t he Unexpect ed
2012 Accord Coupe

Although this seems like a simple
procedure, you should take several
precautions.Open the hood, and check the
physical condition of the battery.
In very cold weather, check the
condition of the electrolyte. If it
seems slushy or f rozen, do not try
jump starting until it thaws.
To jump start your vehicle:
Turn of f all the electrical
accessories: heater, A/C, audio
system, lights, etc. Put the
transmission in neutral (manual)
or Park (automatic), and set the
parking brake.
You cannot start your vehicle with an
automatic transmission by pushing
or pulling it. The numbers in the illustrations
show you the order to connect the
jumper cables.
1.
2.
Jump Starting
400
BOOSTER BATTERY
4-cylinder models
A battery can explode if you do
not follow the correct procedure,
seriously injuring anyone
nearby.
Keep all sparks, open flames,
and smoking materials away
from the battery. If a battery sits in extreme cold, the
electrolyte inside can f reeze.
Attempting to jump start with a f rozen
battery can cause it to rupture.

T aking Care of t he Unexpect ed
2012 Accord Coupe

´´ µ
CONT INUED
Connect one jumper cable to the
positive ( ) terminal on your
battery. Connect the other end to
the positive ( ) terminal on the
booster battery.Connect the second jumper cable
to the negative ( ) terminal on
the booster battery. Connect the
other end to the engine mounting
bolt (automatic) or the
transmission mounting bolt
(manual),asshown.Donot
connect this jumper cable to any
other part of the engine.
3.
4.4-cylinder models
Jump Starting
401
BOOSTER BATTERY
V6 models 4-cylinder models with automatic
transmission4-cylinder models with manual
transmission

T aking Care of t he Unexpect ed
2012 Accord Coupe

µKeep the ends of the jumper cables
away from each other and any metal
on the vehicle until everything is
disconnected. Otherwise, you may
cause an electrical short.
If the booster battery is in another
vehicle, have an assistant start
that vehicle and run it at a fast idle.
Start the vehicle. If the starter
motor still operates slowly, check
that the jumper cables have good
metal-to-metal contact.
Once your vehicle is running,
disconnect the negative cable f rom
your vehicle, then f rom the
booster battery. Disconnect the
positive cable f rom your vehicle,
then from the booster battery.
Connect the second jumper cable to
thenegative( )terminalonthe
booster battery. Connect the other
end to the engine hanger as shown.
Do not connect this jumper cable to
any other part of the engine. 7. 6. 5.
V6 models
Jump Starting
402
V6 models

T aking Care of t he Unexpect ed
2012 Accord Coupe

The pointer of your vehicle’s
temperature gauge should stay in
the midrange under most conditions.
If it climbs to the red mark, you
should determine the reason (hot
day, driving up a steep hill, etc.).
If your vehicle overheats, you should
take immediate action. The only
indication may be the temperature
gauge climbing to or above the red
mark. Or you may see steam or
spray coming f rom under the hood.Saf ely pull to the side of the road.
Put the transmission in neutral
(manual) or Park (automatic), and
set the parking brake. Turn of f all
accessories, and turn on the
hazard warning lights.
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 comes down to the midpoint,
then continue driving.
If the temperature gauge stays at
the red mark, turn off the engine.
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 ).
2. 1. 3.
4.
5.
415
CONT INUED
Emergency
Towing
If theEngineOverheats
403
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
pointer at the red mark can cause
serious damage to the engine.

T aking Care of t he Unexpect ed
2012 Accord Coupe

If you do not f ind an obvious leak,
check the coolant level in the
radiator reserve tank. Add coolant
if the level is below the MIN mark.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.
Start the engine, and set the
temperature to maximum heat
(climate control to AUTO at
‘‘ ’’). 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 (see
on 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.
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 pointer
reaches the middle of the tempera-
ture gauge, or lower, bef ore check-
ing the radiator.
6.
7.
8.
9.
11. 10.
415
If theEngineOverheats
Emergency
Towing
404
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.

T aking Care of t he Unexpect ed
2012 Accord Coupe

This indicator should never come on
when the engine is running. If it
starts flashing or stays on, the oil
pressure has dropped very low or
lost pressure. Serious engine
damage is possible, and you should
take immediate action.Let the vehicle sit f or a minute.
Open the hood, and check the oil
level (see page ). An engine
very low on oil can lose pressure
during cornering and other driving
maneuvers.
If necessary, add oil to bring the
level back to the full mark on the
dipstick (see page ).
Start the engine, and watch the oil
pressure indicator. If it does not go
out within 10 seconds, turn of f the
engine. There is a mechanical
problem that needs to be repaired
bef ore you can continue driving
(see
on page
). If the charging system indicator
comes on brightly when the engine
is running, the battery is not being
charged.
Immediately turn of f all electrical
accessories. Try not to use other
electrically operated controls such as
the power windows. Keep the engine
running; starting the engine will
discharge the battery rapidly.
Go to a service station or garage
where you can get technical
assistance.
Saf ely pull of f the road and shut
of f the engine. Turn on the hazard
warning lights.
1.
2.
3.
4.
415 350
291
L ow Oil Pressure
Indicator
Emergency T owing Charging System
Indicator
L ow Oil Pressure Indicator, Charging System Indicator
405
Running the engine with low oil
pressure can cause serious mechanical
damage almost immediately. Turn of f
the engine as soon as you can saf ely get
the vehicle stopped.

T aking Care of t he Unexpect ed
2012 Accord Coupe