Acura MDX 2012 Owner's Manual

Refueling1. Park with the driver's side closest
to the service station pump.
2. Open the fuel fill door by pressing
the button in the driver's door. (To
open the fuel fill door manually,
see page 572.)
3. Remove the fuel fill cap slowly.
You may hear a hissing sound as
pressure inside the tank equalizes.
Place the cap in the holder on the
fuel fill door.
4. Stop filling the tank after the fuel
nozzle automatically clicks off. Do
not try to‘‘top off’’the tank. Leave
some room for the fuel to expand
with temperature changes.If the fuel nozzle keeps clicking off
even though the tank is not full,
there may be a problem with your
vehicle's fuel vapor recovery system.
The system helps keep fuel vapor
from going into the atmosphere. Try
filling at another pump. If this does
not fix the problem, consult your
dealer.
Gasoline is highly flammable
and explosive. You can be
burned or seriously injured
when handling fuel.●
Stop the engine, and keep
heat, sparks, and flame
away.
●
Handle fuel only outdoors.
●
Wipe up spills immediately.
Push
FUEL FILL CAP
TETHER
HOLDER
Service Station Procedures424

5. Screw the fuel fill cap back on until
it clicks at least once. If you do not
properly tighten the cap, you will
see a‘‘TIGHTEN FUEL CAP’’
message on the multi-information
display (see right column on this
page), and the malfunction
indicator lamp may also come on
(see page 563).
6. Push the fuel fill door closed until
it latches.Tighten Fuel Cap Message
Your vehicle's on board diagnostic system
will detect a loose or missing fuel fill cap as
an evaporative system leak. The first time a
leak is detected a‘‘TIGHTEN FUEL CAP’’
message appears on the multi-information
display. Turn the engine off, and confirm the
fuel fill 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 fuel fill 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 off.
If the system still detects a leak in
the vehicle's evaporative emissions
system, the malfunction indicator
lamp (MIL) comes on. If the fuel fill
cap was not already tightened, turn
the engine off, and check or
retighten the fuel fill 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 off,
have your vehicle inspected by a
dealer. For more information, see
page 563.Service Station Procedures
425
Before Driving

Opening and Closing the Hood1. Park the vehicle, and set the
parking brake. Pull the hood
release handle located under the
lower left corner of the dashboard.
The hood will pop up slightly.
2. Put your fingers under the front
edge of the hood near the center.
Slide your hand to your left until
you feel the hood latch handle.
Push this handle up until it
releases the hood. Lift up the
hood.
If the hood latch handle moves stiffly,
or if you can open the hood without
lifting the handle, the mechanism
should be cleaned and lubricated.3. Lift the hood up most of the way.
The hydraulic supports will lift it
up the rest of the way and hold it
up.
To close the hood, lower the hood to
about a foot (30 cm) above the
fender, then press down firmly with
your hands. Make sure it is securely
latched.
HOOD RELEASE HANDLE
LATCH
Service Station Procedures426

Oil CheckWait a few minutes after turning the
engine off before you check the oil.
1. Remove the dipstick (orange loop).
2. Wipe off the dipstick with a clean
cloth or paper towel.
3. Insert the dipstick all the way back
into its hole.
4. Remove the dipstick again, and
check the level. It should be
between the upper and lower
marks.
If it is near or below the lower mark,
seeAdding Engine Oilon page 517.Engine Coolant Check
Look at the coolant level in the
radiator reserve tank. Make sure it is
between the MAX and MIN lines. If
it is below the MIN line, seeAdding
Engine Coolanton page 520 for
information on adding the proper
coolant.
Refer toOwner's Maintenance
Checkson page 513 for information
about checking other items on your
vehicle.
DIPSTICK
UPPER MARK
LOWER MARK
RESERVE TANK
MIN
MAX
CONTINUED
Service Station Procedures
427
Before Driving

Actual Mileage and EPA Fuel
Economy Estimates Comparison.
Fuel economy is not a fixed number.
It varies based on driving conditions,
driving habits and vehicle condition.
Therefore, it is not possible for one
set of estimates to predict fuel
economy precisely for all drivers in
all environments.
The EPA fuel economy estimates
shown in the example to the right are
a useful tool for comparison when
buying a vehicle. EPA estimates
include:
City MPG－Represents urban
driving in a vehicle in light traffic. A
range of miles per gallon achieved is
also provided.
Highway MPG－Represents a
mixture of rural and interstate
driving, in a warmed-up vehicle,
typical of longer trips in free-flowing
traffic. A range of miles per gallon
achieved is also provided.
Combined Fuel Economy－
Represents a combination of city and
highway driving. The scale
represents the range of combined
fuel economy for other vehicles in
the class.
Estimated Annual Fuel Cost－
Provides an estimated annual fuel
cost, based on 15,000 miles in the
U.S. or 20,000 km in Canada per year
multiplied by the cost per gallon
(based on EPA fuel cost data) divided
by the combined fuel economy.
For more information on fuel
economy ratings and factors that
affect fuel economy, visit
www.
fueleconomy.gov
(Canada: Visit
www.vehicles.gc.ca
)
City MPG
Combined Fuel
Economy
(Sample U.S. EPA label shown)Highway MPG
Estimated Annual
Fuel Cost
Fuel Economy428

Fuel Economy Factors
The following factors can lower your
vehicle's fuel economy:●
Aggressive driving (hard
acceleration and braking)
●
Excessive idling, accelerating and
braking in stop-and-go traffic
●
Cold engine operation (engines
are more efficient when warmed
up)
●
Driving with a heavy load or the air
conditioner running
●
Improperly inflated tires
Improving Fuel EconomyVehicle MaintenanceA properly maintained vehicle
maximizes fuel economy. Poor
maintenance can significantly reduce
fuel economy. Always maintain your
vehicle according to the maintenance
messages displayed on the multi-
information display (seeOwner's
Maintenance Checkson page 513).For example:
●
Use the recommended viscosity
motor oil, displaying the API
Certification Seal (see page 517).
●
Maintain proper tire inflation－
An underinflated tire increases
‘‘rolling resistance,’’which reduces
fuel economy.
●
Avoid carrying excess weight in
your vehicle－It puts a heavier
load on the engine, increasing fuel
consumption.
●
Keep your vehicle clean－In
particular, a build-up of snow or mud
on your vehicle's underside adds
weight and rolling resistance.
Frequent cleaning helps your fuel
economy.
Drive Efficiently●
Drive moderately－Rapid
acceleration, abrupt cornering, and
hard braking increase fuel
consumption.
●
Observe the speed limit－
Aerodynamic drag has a big effect
on fuel economy at speeds above
45 mph (75 km/h). Reduce your
speed and you reduce the drag.
Trailers, car top carriers, roof
racks and bike racks are also big
contributors to increased drag.
●
Always drive in the highest gear
possible－If your vehicle has a
manual transmission, you can
boost your fuel economy by up
shifting as early as possible.
●
Avoid excessive idling－Idling
results in 0 miles per gallon (0 kms
per liter).
CONTINUED
Fuel Economy
429
Before Driving

●
Minimize the use of the air
conditioning system－The A/C
puts an extra load on the engine
which makes it use more fuel. Use
the fresh-air ventilation when
possible.
●
Plan and combine trips－
Combine several short trips into
one. A warmed-up engine is more
fuel efficient than a cold one.
Calculating Fuel Economy
Measuring TechniquesDirect calculation is the
recommended source of information
about your actual fuel economy.
Using frequency of fill-ups or taking
fuel gauge readings are NOT
accurate measures of fuel economy.
Fuel economy may improve over the
first several thousand miles
(kilometers).
Checking Your Fuel Economy1)Fill the fuel tank until the nozzle automatically clicks off.
2)Reset trip counter to zero.
3)Record the total gallons (liters) needed to refill.
4)Follow one of the simple calculations above.
Miles driven
100Gallons of
fuelMiles per
Gallon
L per 100 km Kilometers Liter
Fuel Economy430

Modifying your vehicle, or installing
non-Acura accessories, may make
your vehicle unsafe. Before you
make any modifications or add any
accessories, be sure to read the
following information.
Accessories
Your dealer has Acura accessories
that allow you to personalize your
vehicle. These accessories have been
designed and approved for your
vehicle, and are covered by warranty.
Although non-Acura accessories may
fit on your vehicle, they may not
meet factory specifications, and could
adversely affect your vehicle's
handling, stability, and reliability.
Improper accessories or
modifications can affect your
vehicle's handling, stability, and
performance, and cause a
crash in which you can be hurt
or killed.
Follow all instructions in this
owner's manual regarding
accessories and modifications.
When properly installed, cellular
phones, alarms, two-way radios, and
low-powered audio systems should
not interfere with your vehicle's
computer controlled systems, such
as your airbags, anti-lock brakes, and
tire pressure monitoring system.Before installing any accessory:
●
Make sure the accessory does not
obscure any lights, or interfere
with proper vehicle operation or
performance.
●
Be sure electronic accessories do
not overload electrical circuits (see
page 566) or interfere with proper
operation of your vehicle.
●
Do not install accessories on the
side pillars or across the rear
windows. Accessories installed in
these areas may interfere with
proper operation of the side
curtain airbags.
●
Before installing any electronic
accessory, have the installer
contact your dealer for assistance.
If possible, have your dealer
inspect the final installation.
CONTINUED
Accessories and Modifications
431
Before Driving

Modifying Your Vehicle
Removing parts from your vehicle, or
replacing components with non-
Acura components could seriously
affect your vehicle's handling,
stability, and reliability.
Some examples are:●
Lowering your vehicle with a non-
Acura suspension kit that
significantly reduces ground
clearance can allow the
undercarriage to hit speed bumps
or other raised objects, which
could cause the airbags to deploy.
●
Raising your vehicle with a non-
Acura suspension kit can affect the
handling and stability.
●
Non-Acura wheels, because they
are a universal design, can cause
excessive stress on suspension
components and will not be
compatible with the tire pressure
monitoring system (TPMS).
●
Larger or smaller wheels and tires
can interfere with the operation of
your vehicle's anti-lock brakes and
other systems.
Modifying your steering wheel or
any other part of your vehicle's safety
features can make the systems
ineffective.
If you plan to modify your vehicle,
consult your dealer.
Accessories and Modifications432

Your vehicle has several convenient
storage areas:●
Glove box
●
Door and seat-back pockets
●
Rear cargo area, including the
second and third row seats when
folded flat
●
Console compartment
●
Storage compartment
●
Rear compartment
●
Roof-rack (if equipped)
However, carrying too much cargo,
or improperly storing it, can affect
your vehicle's handling, stability,
stopping distance, and tires, and
make it unsafe. Before carrying any
type of cargo, be sure to read the
following pages.
STORAGE COMPARTMENTSEAT-BACK POCKETS
CARGO AREA REAR COMPARTMENT DOOR POCKETS CONSOLE COMPARTMENT
GLOVE BOX
CONTINUED
Carrying Cargo
433
Before Driving