2009 Acura MDX tire pressure

If the low tire pressure/TPMS
indicator comes on, or the multi-
information display shows a‘‘CHECK
TPMS SYSTEM ’’message, the VSA
system automatically turns on even
when the VSA system is turned off
by pressing the VSA OFF switch
(see page360).If this happens, you
cannot turn the VSA system off by
pressing the VSA OFF switch again.
When you restart the vehicle with
the compact spare tire, the TPMS
system message will also be
displayed on the multi-information
display after several miles
(kilometers) driving.
Changing a Tire with TPMS
If you have a flat tire, the low tire
pressure/TPMS and tire monitor
indicators will come on. Replace the
indicated flat tire with the compact
spare tire (see page425). After the flat tire is replaced with the
spare tire, the low tire pressure/
TPMS indicator stays on while
driving. After several miles
(kilometers) driving, this indicator
begins to flash, then stays on again.
You will also see a
‘‘CHECK TPMS
SYSTEM ’’message on the multi-
information display. This is normal;
the system cannot monitor the spare
tire pressure. Manually check the
spare tire pressure to be sure it is
correct. This indicator and the warning
message on the multi-information
display will go off, after several miles
(kilometers) driving, when the spare
tire is replaced with the specified
regular tire equipped with the tire
pressure monitor sensor.
Each wheel is equipped with a tire
pressure sensor mounted inside the
tire behind the valve stem. You must
use TPMS specific wheels. It is
recommended that you always have
your tires serviced by your dealer or
a qualified technician.
Never use a puncture-repairing agent
in a flat tire. If used, you will have to
replace the tire pressure sensor.
Have the flat tire repaired by your
dealer as soon as possible.
CONTINUED
Tire Pressure Monitoring System (TPMS)
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Driving
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2009 MDX

As required by the FCC:This device complies with Part 15 of theFCC rules. Operation is subject to the
following two conditions: (1) This devicemay not cause harmful interference, and(2) this device must accept any
interference received, includinginterference that may cause undesiredoperation.
Changes or modifications not expresslyapproved by the party responsible forcompliance could void the user's
authority to operate the equipment.This device complies with IndustryCanada Standard RSS-210.
Operation is subject to the following twoconditions: (1) this device may not cause
interference, and (2) this device mustaccept any interference that may causeundesired operation of the device.
Braking System
Your vehicle is equipped with disc
brakes at all four wheels. A power
assist helps reduce the effort needed
on the brake pedal. The emergency
brake assist system increases the
stopping force 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 foot on the pedal keeps
the brakes applied lightly, builds up
heat, and reduces their effectiveness
and reduces brake pad life. In
addition, fuel economy can be
reduced. It also keeps your brake
lights on all the time, confusing
drivers behind you. Constant application of the brakes
when going down a long hill builds
up heat and reduces their
effectiveness. Use the engine to
assist the brakes by taking your foot
off the accelerator and downshifting
to a lower gear.
Check the brakes after driving
through deep water. Apply the
brakes moderately to see if they feel
normal. If not, apply them gently and
frequently until they do. Be extra
cautious in your driving.
Tire Pressure Monitoring System (TPMS), Braking System35608/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
2009 MDX

You will also see a‘‘CHECK VSA
SYSTEM ’’message on the multi-
information display if there is a
problem with the VSA system.
If the low tire pressure/TPMS
indicator comes on, or the multi-
information display shows a ‘‘CHECK
TPMS SYSTEM ’’message, the VSA
system automatically turns on even
when the VSA system is turned off
by pressing the VSA OFF switch
(see page360).If this happens, you
cannot turn the VSA system off by
pressing the VSA OFF switch again.
Without VSA, your vehicle will have
normal braking and cornering ability,
but it will not have VSA traction and
stability enhancement. VSA Off Switch
This switch is under the driver's side
vent. To turn the VSA system on and
off, press and hold it until you hear a
beep.
When VSA is off, the VSA activation
indicator comes on as a reminder.
With the VSA off, the trailer stability
assist function is also turned off (see
page376).VSA is turned on every time you start
the engine, even if you turned it off
the last time you drove the vehicle.
In certain unusual conditions when
your vehicle gets stuck in shallow
mud or fresh snow, it may be easier
to free it with the VSA temporarily
switched off. When the VSA system
is off, the traction control system is
also off. You should only attempt to
free your vehicle with the VSA off if
you are not able to free it when the
VSA is on.
Immediately after freeing your
vehicle, be sure to switch the VSA on
again. We do not recommend driving
your vehicle with the VSA and
traction control systems switched off.
Vehicle Stability Assist (VSA
®), aka Electronic Stability Control (ESC), System
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2009 MDX

Check Out Your Vehicle
Before you leave the pavement, be
sure to do all scheduled maintenance
and service, and inspect your vehicle
for any problems. Pay special
attention to the condition of the tires,
and check the tire pressures.
After you return to the pavement,
carefully inspect your vehicle to
make sure there is no damage that
could make driving it unsafe.
Recheck the condition of the tires
and the tire pressures.
Remember
The route presents limits (too steep
or bumpy roads). You have limits
(driving skill and comfort). And your
vehicle has limits (traction, stability,
and power).
Driving off-highway can be
hazardous if you fail to recognize
limits and take the proper
precautions.Accelerating and Braking
For better traction on all surfaces,
accelerate slowly and gradually build
up speed. If you try to start too fast
on wet soil, mud, snow, or ice, you
might not have enough traction to
get underway, and you may dig
yourself a hole. Starting with the shift
lever in the D position will help you
have a smoother start on snow or ice.
Keep in mind that you will usually
need more time and distance to
brake to a stop on unpaved surfaces.
Avoid hard braking. Do not
‘‘pump ’’
the brakes; let the anti-lock braking
system pump them for you.
Avoiding Obstacles
Debris in the road can damage your
suspension or other components.
Because your vehicle has a high
center of gravity, driving over a large
obstacle, or allowing a wheel to drop
into a deep hole can cause your
vehicle to tip or roll over. Driving on Slopes
If you can't clearly see all conditions
or obstacles on a slope, walk the
slope before you drive on it. If you
have any doubt whether or not you
can safely drive on the slope, don't
do it. Find another route.
If you are driving up a hill and find
that you cannot continue,
do not try to
turn around.
Your vehicle could roll
over. Slowly back down the hill,
following the same route you took up
the hill.
Crossing a Stream
Before driving through water, stop,
get out if necessary, and make sure
that:
●The water is not deep enough to
cover your wheel hubs, axles, or
exhaust pipe. You could stall and
not be able to restart your engine.
The water can also damage
important vehicle components.
CONTINUED
Off-Highway Driving Guidelines
379
Driving
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2009 MDX

One of the most convenient and
important features of the multi-
information display on your vehicle is
the maintenance minder.
Based on engine operating
conditions and accumulated engine
revolutions, the onboard computer in
your vehicle calculates the remaining
engine oil life.
The system also displays the code for
other scheduled maintenance items
needing service.Engine Oil Life
To see the remaining engine oil life
displayed on the multi-information
display as a percentage, turn the
ignition switch to the ON (II)
position. Make sure the display
shows blank, SH-AWD and tire
pressure, and then press the SEL/
RESET button on the steering wheel
repeatedly until the engine oil life
appears (see page73).
The remaining engine oil life is
displayed according to the table
shown below. Calculated Engine
Oil Life (%) Displayed
Engine Oil Life (%)
100% －91% 100%
90% －81% 90%
80% －71% 80%
70% －61% 70%
60% －51% 60%
50% －41% 50%
40% －31% 40%
30% －21% 30%
20% －16% 20%
15% －11% 15%
10% －6% 10%
5% －1% 5%
0% 0%
REMAINING ENGINE OIL LIFE
CONTINUED
Maintenance Minder
383
Maint enance
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2009 MDX

Maintenance Main Items and Sub
ItemsAll the maintenance items displayed
in the multi-information display are in
code.
For an explanation of the
maintenance codes, see page390.Resetting the Engine Oil Life
Display
Your dealer will reset the display
after completing the required
maintenance service. You will see
‘‘
OIL LIFE 100% ’’on the display the
next time you turn the ignition
switch to the ON (II) position.
If maintenance service is done by
someone other than your dealer,
reset the maintenance minder as
follows:
1. Turn the ignition switch to the ON (II)
position.
2. If the engine oil life is not displayed, press the SEL/RESET button on the
steering wheel repeatedly the multi-
information display shows blank,
SH-AWD and tire pressure.
3. Press and hold the SEL/RESET button on the steering wheel for more than 10
seconds. The remaining engine oil life
reset mode will be shown on the multi-
information display.
4. Select ‘‘RESET ’’by pressing the INFO
( ▲ /▼ ) button, then press the SEL/
RESET button to reset the engine oil
life display. The maintenance item
code(s) will disappear, and the engine
oil life will reset to ‘‘100. ’’If you want to
cancel the oil life reset mode, select
‘‘ CANCEL. ’’
MAINTENANCE
SUB ITEMS
MAINTENANCE
MAIN ITEM MAINTENANCE
MAIN ITEM MAINTENANCE
SUB ITEMS
CONTINUED
Maintenance Minder
387
Maint enance
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2009 MDX

U.S. Vehicles:
Maintenance, replacement, or
repair of emissions control
devices and systems may be done
by any automotive repair
establishment or individual using
parts that are‘‘certified’’to EPA
standards.
According to state and federal
regulations, failure to perform
maintenance on the items marked
with ＃will not void your emissions
warranties. However, Acura
recommends that all maintenance
services be performed in accordance
with the intervals indicated by the
multi-information display. Owner's Maintenance Checks
You should check the following
items at the specified intervals. If you
are unsure of how to perform any
check, turn to the appropriate page
listed.
●Engine oil level
－Check every
time you fill the fuel tank. See page
326.●Engine coolant level －Check the
radiator reserve tank every time
you fill the fuel tank. See page326.●Automatic transmission －Check
the fluid level monthly. See page
399.●Brakes －Check the fluid level
monthly. See page401.●Tires －Check the tire pressure
monthly. Examine the tread for
wear and foreign objects. See page
416.
●Lights －Check the operation of
the headlights, parking lights,
taillights, high-mount brake light,
and license plate lights monthly.
See page403.
Maintenance Minder
389
Maint enance
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2009 MDX

To safely operate your vehicle, your
tires must be the proper type and
size, in good condition with adequate
tread, and correctly inflated.
The following pages give more
detailed information on how to take
care of your tires and what to do
when they need to be replaced.
Using tires that are excessively
worn or improperly inflated can
cause a crash in which you can
be seriously hurt or killed.
Follow all instructions in this
owner's manual regarding tire
inflation and maintenance.Inflation Guidelines
Keeping the tires properly inflated
provides the best combination of
handling, tread life, and riding
comfort.
●Underinflated tires wear unevenly,
adversely affect handling and fuel
economy, and are more likely to
fail from being overheated.●Overinflated tires can make your
vehicle ride more harshly, are
more prone to damage from road
hazards, and wear unevenly.
The tire pressure monitoring system
(TPMS) warns you when a tire
pressure is low. See page351for
more information.
Even though your vehicle is
equipped with TPMS, we
recommend that you visually check
your tires every day. If you think a
tire might be low, check it
immediately with a tire gauge. Use a gauge to measure the air
pressure in each tire at least once a
month. Even tires that are in good
condition may lose 1 to 2 psi (10 to
20 kPa, 0.1 to 0.2 kgf/cm
2) per
month. Remember to check the
spare tire at the same time.CONTINUED
Tires
415
Maint enance
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2009 MDX