2009 Acura TSX check engine light

This indicator normally comes on
when you turn the ignition switch to
the ON (II) position and goes of f
af ter the engine starts. If it comes on
at any other time, there is a problem
in the electric power steering system.
If this happens, stop the vehicle in a
saf e place and turn of f the engine.
Reset the system by restarting the
engine. The indicator will stay on,
but should go of f af ter driving a
short distance. If it does not go of f ,
or comes back on again while driving,
take the vehicle to your dealer to
have it checked. With the indicator
on, the EPS may be turned of f ,
making the vehicle harder to steer.If you turn the steering wheel to the
f ull lef t or right position repeatedly
while stopping or driving at very low
speed, you may f eel slightly harder
steering in order to prevent damage
to the steering box caused by
overheating.
This indicator comes on red if any
door or the trunk lid is not closed
tightly.
You will also see a corresponding
indicator(s) on the multi-information
display to indicate which door and/
or the trunk is not closed tightly (see
page ).
You will also see a ‘‘CHECK POWER
STEERING SYSTEM’’ message on
the multi-information display.11
Instrument Panel Indicators
Electric Power Steering
(EPS) Indicator
Door/T runk Open
Indicator
Inst rument s and Cont rols
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2009 TSX

If the system still detects a leak in
the vehicle’s evaporative emissions
system, the malf unction indicator
lamp (MIL) comes on. If the f uel f ill
cap was not already tightened, turn
the engine of f , and check or
retighten the f uel f ill cap until it
clicks at least once. The MIL should
go off after several days of normal
driving once the cap is tightened or
replaced. If the MIL does not go of f ,
have your vehicle inspected by a
dealer. For more inf ormation, see
page .
Turn the engine of f , and conf irm the
f uel f ill cap is installed. If it is, loosen
it, then retighten it until it clicks at
least once. The message should go
off after several days of normal
driving once you tighten or replace
the f uel f ill cap. To scroll to another
message, press the INFO button.
The ‘‘TIGHTEN FUEL CAP’’
message will appear each time you
restart the engine until the system
turns the message of f .
Park the vehicle, and set the
parking brake. Pull the hood
release handle located under the
lower lef t corner of the dashboard.
The hood will pop up slightly.
1.
471
CONT INUED
Opening and Closing the Hood
Service Station Procedure
Bef ore Driving
359
HOOD RELEASE HANDLE
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Make sure all windows, mirrors,
and outside lights are clean and
unobstructed. Remove f rost, snow,
or ice.Make sure the doors are securely
closed and locked.
Fasten your seat belt. Check that
your passengers have f astened
their seat belts (see page ). Check the steering wheel
adjustment (see page ).
Check that the hood is f ully closed.
Check that the trunk is f ully
closed.
Check that any items you may be
carrying are stored properly or
f astened down securely.
Youshoulddothesechecksand
adjustments bef ore you drive your
vehicle:
Check the seat adjustment (see
page ).
When you start the engine, check
the gauges and indicators in the
instrument panel, and the
messages on the multi-inf ormation
display (see pages , and
).
Visually check the tires. If a tire
looks low, use a gauge to check its
pressure. Check the adjustment of the
inside and outside mirrors (see
page ).
3. 2. 1.
4.
5. 6.
7.
8.
9.
15 68
134
118 59
70
145
10. 11.
Preparing to Drive
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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, and reduces their ef f ectiveness
and reduces brake pad life. In
addition, f uel economy can be
reduced. It also keeps your brake
lights on all the time, conf using
drivers behind you.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.
All f our brakes have audible brake
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.
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.
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 and alert in your driving.
Braking System
Brake Pad Wear Indicators
Braking System DesignDriving
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2009 TSX

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.If you think you can saf ely drive a
short distance to a service station,
proceed slowly to the station, then
inflate the tire to the recommended
pressure.
Driving on a signif icantly under-
inf lated tire causes the tire to
overheat and can lead to tire failure.
Under-inf 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/TPMS
indicator may come on unexpectedly.
If the tire is flat, or if the tire
pressure is too low to continue
driving, replace the tire with the
compact spare tire (see page ).
Each tire has its own pressure
sensor. If the air pressure of a tire
becomes signif icantly low, the
sensor in that tire immediately sends
a signal that causes the low tire
pressure/TPMS indicator in the
instrument panel to come on. If this
happens, you will see which tire is
losing pressure on the multi-
inf ormation display along with a
‘‘CHECK TIRE PRESSURE’’
message. It is possible that the pressures
shown on the multi-inf ormation
display and the pressures you
manually measure are slightly
dif f erent.
If the dif f erence is signif icant or you
cannot make the low tire pressure/
TPMS indicator and message on the
multi-inf ormation display go out af ter
inf lating the tires to the specif ied
values, have your dealer check the
system as soon as possible.
When the low tire pressure/TPMS
indicator is on, one or more of your
tires is signif icantly underinf lated.
Youshouldstopandcheckyourtires
as soon as possible, and inflate them
to the proper pressure as indicated
on the vehicle’s tire inf ormation
placard.458Low Tire Pressure/
TPMS Indicator
Tire Pressure Monitoring System (TPMS)
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This section explains why it is
important to keep your vehicle well
maintained and how to f ollow basic
maintenance saf ety precautions.
This section also includes
instructions on how to read the
maintenance minder messages on
the multi-information display, and
instructions f or simple maintenance
tasks you may want to take care of
yourself .......................
Maintenance Saf ety .408
....................
Maintenance Minder .409
..............................
Fluid Locations .418
........................
Adding Engine Oil .419
Changing the Engine Oil and
...........................................
Filter .421
..............................
Engine Coolant .423
....................
Windshield Washers .424
.......................
Transmission Fluid .425
..........
Automatic Transmission .425
..............
Manual Transmission .427
................
Brake and Clutch Fluid .428
.............................................
Lights .430
................
Cleaning the Seat Belts .442
.....................................
Floor Mats .442
..................
DustandPollenFilter .443
.................................
Exterior Care .443
.................................
Wiper Blades .444
...............................................
Tires .447
...................
Checking the Battery .454
.............................
Vehicle Storage .455
If you have the skills and tools to
perf orm more complex maintenance
tasks on your vehicle, you may want
to purchase the service manual. See
page f or inf ormation on how to
obtain a copy, or see your dealer.
505
Maintenance
Maint enance
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µ
µ µ
µ
µ
Ì
µLights Check the operation of
the headlights, parking lights,
taillights, high-mount brake light,
and license plate lights monthly.
See page .
Youshouldcheckthefollowing
items at the specif ied intervals. If
you are unsure of how to perf orm
any check, turn to the appropriate
page listed.
Engine oil level Check every
time you fill the fuel tank. See
page .
Engine coolant level Check the
radiator reserve tank every time
youfillthefueltank.Seepage .
Brakes Check the f luid level
monthly. See page .
Tires Check the tire pressure
monthly. Examine the tread f or
wear and foreign objects. See page .
U.S. Vehicles:
According to state and federal
regulations, f ailure to perf orm
maintenance on the items marked
with will not void your emissions
warranties. However, all
maintenance services should be
perf ormed in accordance with the
intervals indicated by the multi-
inf ormation display.
Automatic transmission Check
the f luid level monthly. See page
.361
361
425 428
447 430
Maintenance Minder
Owner’s Maintenance Checks
Maintenance, replacement, or
repair of emissions control
devices and systems may be done
by any automotive repair
establishment or individual using
parts that are ‘‘certif ied’’ to EPA
standards.
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2009 TSX

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
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2009 TSX