Page 472 of 524

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.
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 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.
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.
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
temperature gauge or lower
bef ore checking the radiator.
7.
6. 8.
9.
10.
11.
481
Emergency
Towing
If theEngineOverheats
T aking Care of t he Unexpect ed
469
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.
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2009 TSX
Page 473 of 524

Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning indicators.
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).
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.
You will also see a ‘‘CHECK
ENGINE OIL LEVEL’’ message on
the multi-information display when
this indicator comes on.
If the charging system indicator
comes on brightly when the engine
is running, the battery is not being
charged.
You will also see a ‘‘CHECK
CHARGING SYSTEM’’ message on
the multi-information display (see
page ).
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.
1.
2.
3.
4.
361
419
481 61
L ow Oil Pressure Indicator, Charging System Indicator
Emergency T owing
L ow Oil Pressure
Indicator
Charging System
Indicator
470
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.
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2009 TSX
Page 479 of 524
Your vehicle has spare fuses on the
back of the under-hood f use box
cover.
Look f or a blown wire inside the
f use. If it is blown, replace it with
oneof thesparefusesof thesame
rating or lower.
Check the smaller f uses in the
under-hood f use box and all the
fuses in the interior fuse boxes by
pulling out each one with the f use
pullerprovidedonthebackof the
under-hood f use box cover. 5.
4.
Fuses
476
BLOWN
FUSE PULLERSPARE FUSES
FUSE PULLER
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2009 TSX
Page 481 of 524
µ
µ
µ
µ
µ
µ
µµ
µ
µ
µ
µ
µ
µ
µ
µµ
µ
µ µ
µ
µ
µ
Circuits Protected
No. Amps.
Amps. Circuits Protected
No.
No. Circuits Protected Amps.
Not Used
Wiper
Not Used
Main Fan Motor
Driver’s Side Light Main
(Driver’s Side Fuse Box)
Passenger’s Side Light Main
30 A
30 A
30 A
60 A
30 A
100 A
40 A
70 A
(40 A) 30 A
30 A Driver’s Side Fuse Box
IG Main
Rear Defroster
Sub Fan Motor
Not Used
Not Used
Heater Motor
Hazard
Horn
Not Used
Stop
IG Coil
FI Sub
Back Up
Interior Lights
FI Main
DBW
Not Used
MG Clutch
Engine Oil Level
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Battery
Passenger’s Side Fuse Box
EPS
(Passenger’s Side Fuse Box)
ABS/VSA FSR
Not Used
ABS/VSA Motor (40 A)
50 A
40 A
20 A
40 A
15 A
10 A
15 A
15 A
15 A
10 A
7.5 A 15 A
15 A
7.5 A
7.5 A26
31
32
33
34
35
36 37
38
11
12
21
22
23
24
25
Fuse Locations
478
UNDER-HOOD FUSE BOX
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2009 TSX
Page 484 of 524

µµ
If your vehicle needs to be towed,
call a prof essional towing service or
organization. Never tow your vehicle
with just a rope or chain. It is very
dangerous.
The operator
loads your vehicle on the back of a
truck.
Therearetwowaystotowyour
vehicle: If , due to damage, your vehicle must
be towed with the f ront wheels on
the ground, do this:
Release the parking brake.
Shif t the transmission to neutral.
With the f ront wheels on the ground,
it is best to tow the vehicle no farther
than 50 miles (80 km), and keep the
speedbelow35mph(55km/h).
Leave the ignition switch in the
ACCESSORY (I) position so the
steering wheel does not lock.
The tow
truck uses two pivoting arms that go
under the f ront tires and lif t them of f
the ground. The rear tires remain on
the ground. Start the engine.
Press on the brake pedal. Move
the shif t lever through all its
positions.
Shif t to D position f or 5 seconds,
then to N.
Turn of f the engine.
Release the parking brake.
Leave the ignition switch in the
ACCESSORY (I) position so the
steering wheel does not lock.
Manual transmission:
Automatic transmission:
CONT INUED
Flat -bed EquipmentWheel-lif t Equipment
T his is the best way to
transport your vehicle.
This is an acceptable
way to tow your vehicle.
Emergency Towing
T aking Care of t he Unexpect ed
481
Improper towing preparation will
damage the transmission. Follow the
above procedure exactly. If you cannot
shif t the transmission or start the
engine (automatic transmission), your
vehicle must be transported with the
f ront wheels of f the ground.
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2009 TSX
Page 490 of 524

ÎÎ
Î
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
µ
Î
Î
Î
µ
µ
µ
CONT INUED
Specif ications
Technical Inf ormation
487
Battery
Lights
Engine
Fuses 12V 36AH/5HR 60W
12 V
12 V 35 W
Capacity
12 V 2 W
12 V 3.8 W
12 V 5 W12 V 8 W
12 V 8 W
12 V 5 W 12 V 3 CP
12 V 21 W
12 V 21 W
12 V 21/5 W
12 V 21 W
12 V
12 V 55 W 55 W
On vehicles with high voltage discharge type headlights,
replacement of a headlight bulb should be done by your dealer. 12 V
12 V 45 AH/20 HR
21/5 W
Headlights
Fog lights
Front turn signal/
Front parking lights/
Side marker lights
Rear turn signal lights
Stop/Taillights
High-mount brake light
Back-up lights
Rear side marker lights
License plate lights
Ceiling light
Spotlights
Trunk light
Door courtesy lights
Vanity mirror lights
SXU22HCR11S
ILZKR7B-11S 11.0 : 1
144 cu-in (2,354 cm
)
3.43 x 3.90 in (87.0 x 99.0 mm) Water cooled 4-stroke, DOHC
i-VTEC 4-cylinder, gasoline engine
Type
BorexStroke
Displacement
Compression ratio
Spark plugs
Interior
Under-hood See page478or the fuse box
cover.
See page480or the fuse label
attached to the inside of the fuse
box door.
See page479or the fuse label
attached on the side panel.12 V 47 AH/20 HR
NGK:
DENSO:
Driver’s side
Passenger’s side
High
Low (D2S)
(H1)
(H11)
Canadian TSX (HB3)
1:
2:
3 : If equipped
3 1
2
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2009 TSX
Page 498 of 524

Î
ÎThe burning of gasoline in your
vehicle’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx), and hydrocarbons (HC).
Gasoline evaporating f rom the tank
also produces hydrocarbons. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute to smog creation, but it is a
poisonous gas. The United States Clean Air Act
sets standards f or automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
workandwhattodotomaintain
them. This section summarizes how
the emissions controls work.
Your vehicle has a positive
crankcase ventilation system. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The positive
crankcase ventilation valve routes
them from the crankcase back to theintake manif old. They are then
drawn into the engine and burned.
As gasoline evaporates in the f uel
tank, an evaporative emissions
control canister f illed with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is of f . Af ter
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
The onboard ref ueling vapor
recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f .
In Canada, Acura vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canada, at the time they are
manuf actured.
The Clean Air Act
Crankcase Emissions Control
System Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Emissions Cont rols
Technical Inf ormation
495
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2009 TSX
Page 500 of 524

Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converter inef f ective.
The three way catalytic converter
must operate at a high temperature
for the chemical reactions to take
place. It can set on f ire any
combustible materials that come
near it. Park your vehicle away from
high grass, dry leaves, or other
f lammables.
A defective three way catalytic
converter contributes to air pollution,
and can impair your engine’s per-
f ormance. Follow these guidelines to
protect your vehicle’s three way
catalytic converter.
The three way catalytic converter
contains precious metals that serve
as catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred to
as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Acura part
or its equivalent.
Keep the engine well maintained.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
Technical Inf ormation
497
THREE WAY CATALYTIC CONVERTERS
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2009 TSX