2009 Acura MDX Owner's Manual

LightsHeadlights High 12 V－60 W (HB3)
Low
ꭧ
12 V －35 W (D2S)
Daytime running lights 12 V－60 W (HB3)
Front side marker lights 12 V－3CP
Front turn signal lights 12 V－21 W
Parking lights 12 V－3CP
Fog light 12 V－55 W (H11)
Rear turn signal lights 12 V－21 W
Rear side marker lights 12 V－3CP
Backup lights 12 V－18 W
License plate lights 12 V－3CP
Individual map lights Front 12 V －5W
Rear 12 V －5W
Cargo area lights 12 V－8W
Tailgate lights 12 V－3.4 W
Vanity mirror lights 12 V－2W
Door lights 12 V－3.4 W
ꭧ : The low beam headlights are high voltage discharged type.
Replacement of a low beam headlight bulb should be performed by
your dealer.
Battery Capacity 12 V－65AH/5 HR
12 V －76AH/20 HR
Fuses
Interior See page445or the fuse label attached
to the inside of the fuse box lid.
Rear See page444or the fuse label attached
to the inside of the fuse box lid.
Under-hood See page443and 444or the fuse box
cover.
Engine Type Water-cooled, 4-stroke SOHC VTEC V6
gasoline engine
Bore x Stroke 3.54 x 3.78 in (90.0 x 96.0 mm)
Displacement 223.5 cu-in (3,664 cm
3)
Compression ratio 11.0 : 1
Spark plugs DENSO:
NGK:SKJ20DR-M11
IZFR6K11
Alignment Toe-in Front 0.00 in (0.0 mm)
Rear 0.08 in (2.0 mm)
Camber Front －0°30’
Rear －0°30’
Caster Front 4 ° 12’
Tires Size Front/Rear P255/55R18 104H
Spare T165/80D17 104M
Pressure Front/Rear 32 psi (220 kPa, 2.2 kgf/cm2)
Spare 60 psi (420 kPa, 4.2 kgf/cm2)
Specifications
453
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The tires on your vehicle meet all U.
S. Federal Safety Requirements. All
tires are also graded for treadwear,
traction, and temperature
performance according to
Department of Transportation (DOT)
standards. The following explains
these gradings.
Uniform Tire Quality Grading
Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:Treadwear 200
Traction AA
Temperature A
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades. Treadwear
The treadwear grade is a
comparative rating based on the wear
rate of the tire when tested under
controlled conditions on a specified
government test course. For
example, a tire graded 150 would
wear one and one-half (1 1/2) times
as well on the government course as
a tire graded 100. The relative
performance of tires depends upon
the actual conditions of their use,
however, and may depart
significantly from the norm due to
variations in driving habits, service
practices and differences in road
characteristics and climate.
Traction
The traction grades, from highest to
lowest, are AA, A, B, and C. Those
grades represent the tire's ability to
stop on wet pavement as measured
under controlled conditions on
specified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction
performance.
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.DOT Tire Quality Grading (U.S. Vehicles)45408/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
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Temperature
The temperature grades are A (the
highest), B, and C, representing the
tire's resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled
conditions on a specified indoor
laboratory test wheel. Sustained high
temperature can cause the material
of the tire to degenerate and reduce
tire life, and excessive temperature
can lead to sudden tire failure. The
grade C corresponds to a level of
performance which all passenger car
tires must meet under the Federal
Motor Vehicle Safety Standard No.
109. Grades B and A represent
higher levels of performance on the
laboratory test wheel than the
minimum required by law.Warning: The temperature grade for
this tire is established for a tire that
is properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive loading,
either separately or in combination,
can cause heat buildup and possible
tire failure.
DOT Tire Quality Grading (U.S. Vehicles)
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2009 MDX

The tires that came on your vehicle
have a number of markings. Those
you should be aware of are described
below.
Tire SizeWhenever tires are replaced, they
should be replaced with tires of the
same size. The following is an
example of tire size with an
explanation of what each component
means.P255/55R18 104H
P －Vehicle type (P indicates
passenger vehicle).
255 －Tire width in millimeters.
55 －Aspect ratio (the tire's
section height as a
percentage of its width).
R －Tire construction code (R
indicates radial).
18 －Rim diameter in inches. 104
－Load index (a numerical code
associated with the
maximum load the tire can
carry).
H －Speed symbol (an
alphabetical code indicating
the maximum speed rating).
Tire Identification Number (TIN)The tire identification number (TIN)
is a group of numbers and letters that
look like the following example. TIN
is located on the sidewall of the tire.
DOT B97R FW6X 2202
DOT －This indicates that the tire
meets all requirements of
the U.S. Department of
Transportation.
B97R －Manufacturer's
identification mark.
TIRE LABELING EXAMPLE
(1) Tire Size
(2) Tire Identification Number (TIN)
(3) MaximumTire Pressure
(4) MaximumTire Load (4) (3) (2) (1)
(1)Tire Labeling45608/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
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FW6X－Tire type code.Maximum Tire PressureMax Press －The maximum air
pressure the tire can
hold.Maximum Tire LoadMax Load －The maximum load the
tire can carry at
maximum air pressure.2202 －
Year
Week Date of manufacture.
Tire Labeling
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Each tire, including the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recommended
by the vehicle manufacturer on the
vehicle placard or tire inflation
pressure label.
(If your vehicle has tires of a different
size than the size indicated on the
vehicle placard or tire inflation
pressure label, you should determine
the proper tire inflation pressure for
those tires.)As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale
when one or more of your tires is
significantly under-inflated.
Accordingly, when the low tire
pressure telltale illuminates, you
should stop and check your tires as
soon as possible, and inflate them to
the proper pressure.Driving on a significantly under-
inflated tire causes the tire to
overheat and can lead to tire failure.
Under-inflation also reduces fuel
efficiency and tire tread life, and may
affect the vehicle's handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tire
maintenance, and it is the driver's
responsibility to maintain correct tire
pressure, even if under-inflation has
not reached the level to trigger
illumination of the TPMS low tire
pressure telltale.
Tire Pressure Monitoring System (TPMS)
－Required Federal Explanation45808/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
2009 MDX

Your vehicle has also been equipped
with a TPMS malfunction indicator to
indicate when the system is not
operating properly. The TPMS
malfunction indicator is combined
with the low tire pressure telltale.
When the system detects a
malfunction, the telltale will flash for
approximately one minute and then
remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as long
as the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be
able to detect or signal low tire
pressure as intended.
TPMS malfunctions may occur for a
variety of reasons, including the
installation of replacement or
alternate tires or wheels on the
vehicle that prevent the TPMS from
functioning properly.Always check the TPMS malfunction
telltale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow the
TPMS to continue to function
properly.
Tire Pressure Monitoring System (TPMS)
－Required Federal Explanation
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2009 MDX

The burning of gasoline in your
vehicle's engine produces several
byproducts. Some of these are
carbon monoxide (CO), oxides of
nitrogen (NOx), and hydrocarbons
(HC). Gasoline evaporating from the
tank also produces hydrocarbons.
Controlling the production of NOx,
CO, and HC is important to the
environment. Under certain
conditions of sunlight and climate,
NOx and HC react to form
photochemical‘‘smog. ’’Carbon
monoxide does not contribute to
smog creation, but it is a poisonous
gas. The Clean Air Act
The United States Clean Air Act
ꭧ
sets standards for automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
work and what to do to maintain
them. This section summarizes how
the emissions controls work.
Scheduled maintenance is on page
390.ꭧIn Canada, Acura vehicles comply
with the Canadian emission
requirements, as specified in an
agreement with Environment
Canada, at the time they are
manufactured. Crankcase Emissions Control
System
Your vehicle has a positive crankcase
ventilation system. This keeps
gasses that build up in the engine's
crankcase from going into the
atmosphere. The positive crankcase
ventilation valve routes them from
the crankcase back to the intake
manifold. They are then drawn into
the engine and burned.
Evaporative Emissions Control
System
As gasoline evaporates in the fuel
tank, an evaporative emissions
control canister filled with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is off. After
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
Emissions Controls46008/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
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