Page 425 of 524

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.
Let the engine run f or several
minutes, then check the drain bolt
and oil f ilter f or leaks.
Replace the engine oil f ill cap.
Start the engine. The oil pressure
indicator should go out within 5
seconds. If it does not, turn of f the
engine, and check your work.
Refill the engine with the recom-
mended oil.
Engine oil change capacity
(including f ilter):
Put a new washer on the drain bolt,
then reinstall the drain bolt.
Tighten it to:
Install a new oil f ilter according to
the instructions that come with it.
Make sure to clean of f any dirt
and dust on the connecting
surf ace of a new oil f ilter.
Remove the oil f ilter and let the
remaining oil drain. A special
wrench (available from your
dealer) is required.
Make sure the oil f ilter gasket is
not stuck to the engine block. If it
is, remove it bef ore installing a
new oil f ilter. Install the under cover and tighten
the bolts securely.
7.
8.
9.
6. 10.
11.
12.
5.
Changing the Engine Oil and Filter
422
OIL FILTER
4.2 US qt (4.0)
29 lbf·ft (39 N·m , 4.0 kgf·m)
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.
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2009 TSX
Page 426 of 524

µµ
CONT INUED
If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.
If the coolant level in the reserve
tank is at or below the MIN line, add
coolant to bring it up to the MAX line.
Inspect the cooling system f or leaks.
Always use Honda Long-Lif e
Antif reeze/Coolant Type 2. This
coolant is pre-mixed with 50 %
antif reeze and 50 % water. Never add
straight antif reeze or plain water.
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,
causing the cooling system to
malf unction or f ail. Have the cooling
system f lushed and ref illed with
Honda antif reeze/coolant as soon as
possible.
A dding Engine Coolant
Engine Coolant
Maint enance
423
RESERVE TANK
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.
If you regularly drive your vehicle
under severe conditions in very low
temperature (under 31°F, 35°C), a
higher concentration of coolant should
be used. Consult your Acura dealer f or
more inf ormation of the proper coolant.
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2009 TSX
Page 427 of 524

Make sure the engine and radiator
are cool.
Remove the radiator cap by
pushing down and turning
counterclockwise.
Relieve any pressure in the cooling
system by turning the radiator cap
counterclockwise, without
pressing down.The coolant level should be up to
the base of the f iller neck. Add
coolant if it is low.
Pourthecoolantslowlyand
caref ully so you do not spill any.
Clean up any spill immediately; it
could damage components in the
engine compartment.
Put the radiator cap back on, and
tighten it fully.
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.
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. Check the f luid level in the
windshield washer reservoir at least
monthly during normal use.
Check the reservoir’s f luid level by
removing the cap and looking at the
level gauge attached to the cap.
4.
1.
2.
3. 5.
6.
Engine Coolant, Windshield Washers
Windshield Washers
424
RADIATOR CAP
LEVEL GAUGE
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2009 TSX
Page 428 of 524

Canadian models only
If the washer f luid is low, a
‘‘WASHER FLUID LOW’’ message
appears on the multi-inf ormation
display.
Fill the reservoir with a good-quality
windshield washer f luid. This
increases the cleaning capability and
prevents f reezing in cold weather.
When you ref ill the reservoir, clean
the edges of the windshield wiper
blades with windshield washer f luid
on a clean cloth. This will help to
condition the blade edges.Check the f luid level with the engine
at normal operating temperature.
Park the vehicle on level ground.
Start the engine, let it run until the
radiator f an comes on, then shut
of f the engine. For accurate
results, wait about 60 seconds (but
no longer than 90 seconds) bef ore
doing step 2.
1.
CONT INUED
Automatic Transmission
Windshield Washers, T ransmission Fluid
Maint enance
425
DIPSTICK
Do not use engine antif reeze or a
vinegar/water solution in the
windshield washer reservoir. Antif reeze
can damage your vehicle’s paint, while
a vinegar/water solution can damage
the windshield washer pump. Use only
commercially-available windshield
washer f luid.
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2009 TSX
Page 429 of 524

Remove the dipstick (yellow loop)
f rom the transmission, and wipe it
with a clean cloth.
Insert the dipstick all the way back
into the transmission securely as
shown in the illustration.
Remove the dipstick and check
the f luid level. It should be
between the upper and lower
marks.The transmission should be drained
andrefilledwithnewfluidwhenthis
service is shown on a maintenance
message in the multi-inf ormation
display.
If youarenotsurehowtoaddfluid,
contact your dealer.
If the level is below the lower
mark, add f luid into the dipstick
hole to bring it to the level
between the upper and lower
marks.
Pour the f luid slowly and caref ully
so you do not spill any. Clean up
any spill immediately; it could
damage components in the engine
compartment.
Always use Honda Genuine
ATF-Z1 (automatic transmission
f luid).
Insert the dipstick all the way back
into the transmission securely as
shown in the illustration.
Make sure the rubber cap on the
dipstick f its in the dipstick guide
and that you push the dipstick in
all the way.
2.
3. 5.
4. 6.
T ransmission Fluid
426
LOWER MARK
UPPER MARKGUIDE
Damage resulting f rom the use of
transmission f luid other than Honda
Genuine ATF-Z1 is not covered by the
Acura new vehicle warranty.
Using transmission f luid other than
Honda Genuine ATF-Z1 may cause
deterioration in transmission operation
and durability, and could result in
damage to the transmission.
Use only Honda Genuine ATF-Z1
(Automatic Transmission Fluid). Do
not mix with other transmission f luids.
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2009 TSX
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If Honda MTF is not available, you
may use an SAE 10W-30 or 10W-40
viscosity motor oil with the API
Certif ication seal that says ‘‘FOR
GASOLINE ENGINES’’ as a
temporary replacement. However,
motor oil does not contain the proper
additives, and continued use can
cause stiffer shifting. Replace as
soon as it is convenient.
Remove the transmission f iller bolt,
and caref ully f eel inside the bolt hole
with your f inger.
The f luid level should be up to the
edge of the bolt hole. If it is not, add
Honda Manual Transmission Fluid
(MTF) until it starts to run out of the
hole. Reinstall the f iller bolt, and
tighten it securely.
Check the f luid level with the
transmission at normal operating
temperature and the vehicle sitting
on level ground.
The transmission should be drained
andrefilledwithnewfluidwhenthis
service is shown on a maintenance
message in the multi-inf ormation
display.
If you are not sure how to check and
add f luid, contact your dealer.
To check the transmission f luid level,
remove the bolts with a wrench, then
remove the under cover caref ully. Reinstall the under cover and tighten
theboltssecurely.Makesurethe
under cover is installed under the
edge of the f ront bumper.
T ransmission Fluid
Manual Transmission
Maint enance
427
Correct level
FILLER BOLT
BOLT UNDER COVER
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2009 TSX
Page 467 of 524

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.
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:
Check these things:
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 .
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
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 technician to
determine the problem. See
on page .
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.
You hear nothing, or almost
nothing. The engine’s starter
motor does not operate at all, or
operates very slowly.
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 ).
466 481
466 454
Nothing Happens or the Starter
Motor Operates Very Slowly
Jump Starting Emergency T owing
If theEngineWon’tStart
464
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2009 TSX
Page 468 of 524
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.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 .
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 ).
121
375 474
481
T he Starter Operates Normally
Emergency
Towing
Starting the
Engine
If theEngineWon’tStart
T aking Care of t he Unexpect ed
465
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2009 TSX