engine HONDA ACCORD COUPE 2012 8.G Service Manual

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The transmission control system
monitors the accelerator pedal use
and your driving conditions. When
you press the accelerator pedal as in
normal driving, the system judges
that you are driving at a constant
cruising speed without using the
paddle shif ters. Under these
conditions, D-paddle shif t mode is
canceled, and the transmission
automatically returns to drive mode
(D).
Each time you pull either paddle
shif ter, the transmission shif ts one
gear up or down. If you want to shif t
up or down more than two gears, pull
the paddle shif ter twice, pause, and
then pull it again. The transmission remains in the
selected gear if you do not accelerate. When the transmission returns to
drive mode (D), the displayed gear
number disappears.
Hold the paddle shifter for 2
seconds to return to drive mode (D). The automatic transmission will not
allow you to shif t up or down if :
You downshif t bef ore the engine
speed reaches the highest
threshold of the lower gear.
If you try to do this, the gear
position indicator will f lash the
numberof thelowergearseveral
times, then return to a higher gear.
You upshif t bef ore the engine
speed reaches the lowest
threshold of the higher gear.
You pull both paddle shif ters at
thesametime.
Driving with the Paddle Shif ters (A utomatic Transmission Only)
316

Driving
2012 Accord Coupe

The automatic transmission will not
allow you to shif t up or down if :If you try to do this, the gear
position indicator will f lash the
numberof thelowergearseveral
times, then return to a higher gear.
If the vehicle speed decreases
below the redline of the selected
lowergearwhiletheindicatoris
f lashing, the transmission
downshif ts, and the indicator
displays the selected gear.
You pull both paddle shif ters at
thesametime.
Downshifting with the paddle shifter
allows you to increase the engine
braking when going down steep or
long hills, and provides more power
when climbing uphills. You can
upshif t the transmission manually to
reduce the rpm.
The transmission also shif ts
automatically as the vehicle comes to
a complete stop. It downshif ts to f irst
gear when the vehicle speed reaches
6mph(10km/h)orless.
When you accelerate f rom a stop,
the transmission starts in f irst gear,
and you must manually upshif t
between first and fifth gears. Make
sure you upshif t bef ore the engine
speed reaches the tachometer’s
The transmission remains in the
selectedgear(5,4,3,2,or1).There
is no automatic downshift when
When you are driving in 4th or 5th
gear, the transmission downshif ts to
the lower gear under the f ollowing
conditions:
The vehicle slows down to a
certain speed.
You press the brake pedal. You downshif t bef ore the engine
speed reaches the highest
threshold of the lower gear.
You upshif t bef ore the engine
speed reaches the lowest
threshold of the higher gear.
Driving with the Paddle Shif ters
(A utomatic Transmission Only)
318

Driving
red zone.
your push the accelerator pedal to
the floor.
2012 Accord Coupe

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When you are in sequential shif t
mode, and the vehicle is stopped,
pull the (right) paddle shifter to
shif t to second gear. You will see
‘‘M2’’ in the display. Starting in
second gear helps to reduce
wheelspin in deep snow or on a
slippery surf ace. Drive in the highest gear that lets
the engine run and accelerate
smoothly. This will give you good
f uel economy and ef f ective
emissions control. The f ollowing
shif t points are recommended:
Shif t up
1st to 2nd
2nd to 3rd 3rd to 4th4th to 5th Normal acceleration
15 mph (24 km/h)
25 mph (40 km/h)
40 mph (64 km/h)
45 mph (72 km/h)
Driving with the Paddle Shif ters (A utomatic Transmission Only)
St art ing in Second Gear Recommended Shif t Point s
319

Driving
2012 Accord Coupe

The hydraulic system that operates
the brakes has two separate circuits.
Each circuit works diagonally across
the vehicle (the lef t-f ront brake is
connected with the right-rear brake,
etc.). If one circuit should develop a
problem, you will still have braking
at two wheels.
Your vehicle is equipped with disc
brakes at all f our wheels. A power
assist helps reduce the ef f ort needed
on the brake pedal. The emergency
brake assist system increases the
stopping f orce when you depress the
brake pedal hard in an emergency
situation. The anti-lock brake system
(ABS) helps you retain steering
control when braking very hard.
Resting your f oot on the pedal keeps
the brakes applied lightly, builds up
heat, reduces their ef f ectiveness and
reduces brake pad lif e. In addition,
f uel economy can be reduced. It also
keeps your brake lights on all the
time, conf using drivers behind you. Check the brakes after driving
through deep water. Apply the
brakes moderately to see if they f eel
normal. If not, apply them gently and
f requently until they do. Be extra
cautious in your driving. Constant application of the brakes
when going down a long hill builds
up heat and reduces their ef f ective-
ness. Use the engine to assist the
brakes by taking your f oot of f the
accelerator and downshif ting to a
lower gear.
The f ront and rear disc brakes on all
models have audible brake pad wear
indicators.
If the brake pads need replacing, you
will hear a distinctive, metallic
screeching sound when you apply
the brake pedal. If you do not have
the brake pads replaced, they will
screech all the time. It is normal f or
the brakes to occasionally squeal or
squeak when you apply them. Braking System Design
Brake Pad Wear Indicators
Braking System
321

Driving
2012 Accord Coupe

The VSA system cannot enhance the
vehicle’s driving stability in all
situations and does not control your
vehicle’s entire braking system. It is
still your responsibility to drive and
corner at reasonable speeds and to
leave a sufficient margin of safety. The vehicle stability assist (VSA)
system helps to stabilize the vehicle
during cornering if the vehicle turns
more or less than desired. It also
assists you in maintaining traction
while accelerating on loose or
slippery road surf aces. It does this
by regulating the engine’s output and
by selectively applying the brakes.The main f unction of the
VSA system is generally known as
Electronic Stability Control (ESC).
The system also includes a traction
control f unction.
If the low tire pressure indicator or
TPMS indicator comes on, the VSA
system automatically turns on even if
the VSA system is turned of f by
pressing the VSA OFF switch (see
page ). If this happens, you
cannot turn the VSA system of f by
pressing the VSA OFF switch again.
Without VSA, your vehicle will have
normal braking and cornering ability,
but it will not have VSA traction and
stability enhancement.
When VSA is off, the VSA OFF
indicator comes on as a reminder.
If this indicator comes on while
driving, pull to the side of the road
when it is saf e, and turn of f the
engine. Reset the system by
restarting the engine. If the VSA
system indicator stays on or comes
back on while driving, have the VSA
system inspected by your dealer. When VSA activates, you will see the
VSA system indicator blink.
When VSA activates, you may notice
that the engine does not respond to
the accelerator in the same way it
does at other times. There may also
be some noise f rom the VSA
hydraulic system. You will also see
the VSA system indicator blink. 325
Vehicle Stability Assist
(VSA ) System Indicator
VSA OFF Indicator
Vehicle Stability A ssist (VSA), aka Electronic Stability Control (ESC), System
324
NOTE:

Driving
2012 Accord Coupe

Driving with varying tire or wheel
sizes may cause the VSA to
malf unction. When replacing tires,
make sure they are of the same size
and type as your original tires (see
page ).
VSA is turned on every time you
start the engine, even if you turned it
off the last time you drove the
vehicle.
If you install winter tires, make sure
they are the same size as those that
were originally supplied with your
vehicle. Exercise the same caution
during winter driving as you would
In certain unusual conditions when
your vehicle gets stuck in shallow
mud or f resh snow, it may be easier
to free it with the VSA temporarily
switched of f . When the VSA system
is of f , the traction control system is
alsooff.Youshouldonlyattemptto
f ree your vehicle with the VSA of f if
you are not able to f ree it when the
VSA is on.
Immediately af ter f reeing your
vehicle, be sure to switch the VSA on
again. We do not recommend driving
your vehicle with the VSA and
traction control systems switched off.
This switch is under the driver’s side
vent. To turn the VSA system on and
of f , press and hold it until you hear a
beep.
When VSA is off, the VSA OFF
indicator comes on as a reminder.
Press and hold the switch again. It
turns the system back on. 385
VSA and Tire Sizes
VSA OFF Switch
Vehicle Stability A ssist (VSA), aka Electronic Stability Control (ESC), System
325
VSA OFF SWITCH

Driving
if your vehicle was not equipped
with VSA.
2012 Accord Coupe

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.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.
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.
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.
393
Low Tire Pressure
Indicator
Tire Pressure Monitoring System (TPMS)
326

Driving
2012 Accord Coupe

Your vehicle has been designed
primarily to carry passengers and
their cargo. You can also use it to
tow a trailer if you caref ully observe
the load limits, use the proper
equipment, and f ollow the guidelines
in this section.The
maximum allowable weight of the
trailer and everything in or on it
must not exceed 1,000 lbs (450 kg).
Towing a load that is too heavy
can seriously af f ect your vehicle’s
handling and perf ormance. It can
also damage the engine and
drivetrain. The weight that
the tongue of a f ully-loaded trailer
puts on the hitch should be
approximately 10% of the total
trailer weight. Too much tongue
load reduces front-tire traction and
steering control. Too little tongue
load can make the trailer unstable
and cause it to sway.
Avoid towing a trailer during your
vehicle’s f irst 600 miles (1,000 km)
(see page ).
284
CONT INUED
Load Limits
T otal T railer Weight: T ongue L oad:
Towing a Trailer
Break-In Period
329
Exceeding any load limit or
improperly loading your vehicle
and trailer can cause a crash in
which you can be seriously hurt
or killed.
Check the loading of your
vehicle and trailer carefully
beforestartingtodrive.

Driving
2012 Accord Coupe

CONT INUED
If the automatic transmission f luid
temperature increases and exceeds
the specif ied limit, the transmission
will also automatically downshif t to
the first gear even with the
Sequential Sportshif t Mode. This
prevents the automatic transmission
f rom overheating. In this case, the
gear position ‘‘1’’ next to the ‘‘M’’
indicator in the instrument panel
blinks f or about f ive seconds, then it
stays on.
When driving uphill and downhill,
use the S position (without using the
paddle shif ters) to provide the
proper engine power and engine
braking on each gear. You can also
use the paddle shif ters. In this case,
select third, second, or f irst gear
with the paddle shif ter; depending on
the vehicle speeds and road
condition. Do not use f ourth and f if th
gears.
Maketurnsmoreslowlyandwider
than normal. The trailer tracks a
smaller arc than your vehicle, and it
canhitorrunoversomethingthe
vehicle misses. Allow more time and
distance f or braking. Do not brake or
turn suddenly as this could cause the
trailer to jackknif e or turn over.
Drive slower than normal in all
driving situations, and obey posted
speed limits f or vehicles with trailers.
Do not exceed the limited speed
when towing a trailer. At higher
speeds, the trailer may sway or
af f ect vehicle handling (see ‘‘
’’inthenextpagefor
additional gear information).
If your vehicle has an automatic
transmission, use the D position
when towing a trailer on level roads.
D3 is the proper shif t lever position
to use when towing a trailer in hilly
terrain.V6 models with automatic transmission
4-cylinder models with
Towing a Trailer
T owing Speeds and Gears Making T urns and Braking
Driving
on Hills
335

Driving
automatic transmission
2012 Accord Coupe

When climbing hills, closely watch
your temperature gauge. If it nears
the red (Hot) mark, turn the air
conditioning of f , reduce speed and, if
necessary, pull to the side of the
road to let the engine cool.
When driving down hills, reduce
your speed and always apply engine
braking by shif ting down. If your
vehicle has a manual transmission,
when going down a steep hill, use
the second gear to provide greater
engine braking.Do not ‘‘ride’’ the brakes, and
remember, it will take longer to slow
downandstopwhentowingatrailer.
If youmuststopwhenfacinguphill,
use the f oot brake or parking brake.
Do not try to hold the vehicle in
place by pressing on the accelerator,
as this can cause the automatic
transmission to overheat.
Crosswinds and air turbulence
caused by passing trucks can disrupt
your steering and cause the trailer to
sway. When being passed by a large
vehicle, keep a constant speed, and
steer straight ahead. Do not try to
make quick steering or braking
corrections.
When driving down hills, reduce
your speed and use the S mode. You
canalsousethepaddleshiftersto
change the gear position. Select third,
second or f irst gear depending on
the vehicle speeds and road
condition. When going down a steep
hill, use second gear to provide
greater engine braking. Shif t down
to f irst gear when driving up steep
hills.
If the automatic transmission shif ts
f requently while going up a hill, shif t
to D3.
When driving down hills, reduce
your speed and shif t down to the
second gear.
V6 models with automatic transmission
4-cylinder models with
Driving on Hills
Handling Crosswinds and Buf f et ing
Towing a Trailer
336

Driving
automatic transmission
2012 Accord Coupe