2011 Acura MDX AIR MIX

You'll find many safety
recommendations throughout this
section, and throughout this manual.
The recommendations on this page
are the ones we consider to be the
most important.Always Wear Your Seat Belt
A seat belt is your best protection in
all types of collisions. Airbags are
designed to supplement seat belts,
not replace them. So even though
your vehicle is equipped with
airbags, make sure you and your
passengers always wear your seat
belts, and wear them properly (see
page 16).
Restrain All Children
Children age 12 and under should
ride properly restrained in a back
seat, not the front seat. Infants and
small children should be restrained
in a child seat. Larger children
should use a booster seat and a lap/
shoulder belt until they can use the
belt properly without a booster seat
(see pages 39
－59). Be Aware of Airbag Hazards
While airbags can save lives, they
can cause serious or fatal injuries to
occupants who sit too close to them,
or are not properly restrained.
Infants, young children, and short
adults are at the greatest risk. Be
sure to follow all instructions and
warnings in this manual.
Don't Drink and DriveAlcohol and driving don't mix. Even
one drink can reduce your ability to
respond to changing conditions, and
your reaction time gets worse with
every additional drink. So don't drink
and drive, and don't let your friends
drink and drive, either.
Important Safety Precautions610/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

Personalization Setting
When you unlock the doors with
your remote, the driver's ID (Driver
1 or Driver 2) is detected, and the
climate control settings are turned to
the respective mode automatically
when the ignition is turned to the ON
(II) position.
Voice Control SystemOn models with navigation systemThe climate control system can also
be operated by voice control. See the
navigation system manual for
complete details.Using Automatic Climate Control
The automatic climate control system
in your vehicle picks the proper
combination of air conditioning,
heating, and ventilation to maintain
the interior temperature you select,
and to remove moisture from the air
and make the interior dry. The
system also adjusts the fan speed and
airflow levels.
1. Press the Auto button on the front
control panel.
2. Set the desired temperature with the temperature control buttons.
You will see AUTO in the system's
display.
3. You can set the driver's side temperature, the passenger's side
temperature, and the temperature
of the rear passenger compartment
separately. The system automatically selects the
proper mix of conditioned and/or
heated air that will, as quickly as
possible, raise or lower the interior
temperature to your preference.
Temperature ControlThe driver's side temperature, the
passenger's side temperature and the
rear passenger compartment
temperature can be set separately.
Press the
▲button of the
appropriate temperature control to
increase the temperature of airflow.
Press the ▼button to decrease it.
Each set temperature is shown in the
display. The rear temperature is
shown in the display on the back of
the center console.
CONTINUED
Climate Control System
181
Features
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Dust and Pollen Filter
This filter removes the dust and
pollen that is brought in from the
outside through the climate control
system.
Have your dealer replace the filter
when this service is indicated by a
maintenance message on the multi-
information display. It should be
replaced every 15,000 miles (24,000
km) if you drive primarily in urban
areas that have high concentrations
of soot in the air, or if the flow from
the climate control system becomes
less than usual.Cleaning the Seat Belts
If your seat belts get dirty, use a soft
brush with a mixture of mild soap
and warm water to clean them. Do
not use bleach, dye, or cleaning
solvents. Let the belts air-dry before
you use the vehicle.Dirt build-up around the openings of
the seat belt anchors can cause the
belts to retract slowly. Wipe the
openings with a clean cloth
dampened in mild soap and warm
water or isopropyl alcohol.
OPENING
Dust and Pollen Filter, Cleaning the Seat Belts52810/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

Tire Maintenance
In addition to proper inflation, correct
wheel alignment helps to decrease
tire wear. If you find a tire is worn
unevenly, have your dealer check the
wheel alignment.
Have your dealer check the tires if
you feel a consistent vibration while
driving. A tire should always be
rebalanced if it is removed from the
wheel. When you have new tires
installed, make sure they are
balanced. This increases riding
comfort and tire life. For best results,
have the installer perform a dynamic
balance.Improper wheel weights can damage
your vehicle's aluminum wheels. Use
only Acura wheel weights for
balancing.Tire Rotation
To help increase tire life and
distribute wear more evenly, rotate
the tires according to the
maintenance messages displayed on
the multi-information display. Move
the tires to the positions shown in
the illustration each time they are
rotated. If you purchase directional
tires, rotate only front-to-back.
Replacing Tires and Wheels
Replace your tires with radial tires of
the same size, load range, speed
rating, and maximum cold tire
pressure rating (as shown on the
tire's sidewall).
Mixing radial and bias-ply tires on
your vehicle can reduce braking
ability, traction, and steering
accuracy. Using tires of a different
size or construction can cause the
ABS and vehicle stability assist
system (VSA) to work inconsistently.
The ABS works by comparing the
speed of the wheels. When replacing
tires, use the same size originally
supplied with the vehicle. Tire size
and construction can affect wheel
speed and may cause the system to
activate.
When the tires are rotated, make
sure the air pressures are checked.
Front Front
(For Non-directional
Tires and Wheels) (For Directional
Tires and Wheels)
Tires53810/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu

4. If the temperature gauge stays atthe red mark, turn off the engine.
5. Look for any obvious coolant leaks, such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you find a leak, it
must be repaired before you
continue driving (see Emergency
Towing on page 566).
6. If you do not find an obvious leak, check the coolant level in the
radiator reserve tank. Add coolant
if the level is below the MIN mark.
7. 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,
before checking the radiator.
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.
8. Using gloves or a large heavy cloth, turn the radiator cap
counterclockwise, without pushing
down, to the first stop. After the
pressure releases, push down on
the cap, and turn it until it comes
off. 9. Start the engine and set the
climate control to AUTO at ‘‘Hi. ’’
Add coolant to the radiator up to
the base of the filler neck. If you
do not have the proper coolant
mixture available, you can add
plain water. Remember to have the
cooling system drained and refilled
with the proper mixture as soon as
you can.
10. 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 Emergency
Towing on page 566).
11. 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 the Engine Overheats
555
Taking Care of the Unexpected
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Onboard Refueling Vapor
Recovery
The onboard refueling vapor
recovery (ORVR) system captures
the fuel vapors during refueling. The
vapors are adsorbed in a canister
filled with activated carbon. While
driving, the fuel vapors are drawn
into the engine and burned off.
Exhaust Emissions Controls
The exhaust emissions controls
include four systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These four systems work
together to control the engine's
combustion and minimize the
amount of HC, CO, and NOx that
come out the tailpipe. The exhaust
emissions control systems are
separate from the crankcase and
evaporative emissions control
systems.
PGM-FI SystemThe PGM-FI system uses sequential
multiport fuel injection. It has three
subsystems: air intake, engine
control, and fuel control. The
powertrain control module (PCM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
fuel to inject under all operating
conditions.Ignition Timing Control SystemThis system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.Exhaust Gas Recirculation (EGR)SystemThe exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manifold. Adding exhaust gas to the
air/fuel mixture reduces the amount
of NOx produced when the fuel is
burned.
Three Way Catalytic ConverterThe three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine's exhaust
to carbon dioxide (CO
2), nitrogen
(N
2), and water vapor.
Replacement Parts
The emissions control systems are
designed and certified to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent for repairs. Using lower
quality parts may increase the
emissions from your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more
information.
Emissions Controls
581
Technical Information
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