TPMS Acura MDX 2009 User Guide

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

It is best to replace all four tires at
the same time. If that is not possible
or necessary, replace the two front
tires or two rear tires as a pair.
Replacing just one tire can seriously
affect your vehicle's handling.
If you ever replace a wheel, make
sure that the wheel's specifications
match those of the original wheels.
Also be sure you use only TPMS
specific wheels. If you do not, the tire
pressure monitoring system will not
work.
Replacement wheels are available at
your dealer.
Installing improper tires on your
vehicle can affect handling and
stability. This can cause a crash
in which you can be seriously
hurt or killed.
Always use the size and type of
tires recommended in this
owner's manual.
Wheel and Tire Specifications
Wheel: 18 x 8 J
Tires: P255/55R18 104H
See page454for information about
DOT Tire Quality Grading, and page
456for tire size and labeling
information. Winter Driving
Tires marked
‘‘M ＋ S’’ or ‘‘All
Season ’’on the sidewall have an all-
weather tread design suitable for
most winter driving conditions.
For the best performance in snowy
or icy conditions, you should install
snow tires or tire chains. They may
be required by local laws under
certain conditions.
Snow Tires
If you mount snow tires on your
vehicle, make sure they are radial
tires of the same size and load range
as the original tires. Mount snow
tires on all four wheels. The traction
provided by snow tires on dry roads
may be lower than your original tires.
Check with the tire dealer for
maximum speed recommendations.
CONTINUED
Tires
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Maint enance
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2009 MDX

Use the compact spare tire as a
temporary replacement only. Get
your regular tire repaired or
replaced, and put it back on your
vehicle as soon as you can.
Check the inflation pressure of the
compact spare tire every time you
check the other tires. It should be
inflated to:
60 psi (420 kPa, 4.2 kgf/cm
2)
Follow these precautions:
●Never exceed 50 mph (80 km/h).●This tire gives a harsher ride and
less traction on some road
surfaces. Use greater caution while
driving.
●Do not mount snow chains on a
compact spare.●Do not use your compact spare tire
on another vehicle unless it is the
same make and model.●After the flat tire is replaced with
the spare tire, the low tire
pressure/TPMS indicator stays on.
After several miles (kilometers)
driving with the spare, this
indicator begins to flash, then
stays on again. You will also see a
‘‘ CHECK TPMS SYSTEM’’
message on the multi-information
display (see page354).
Replace the tire when you can see
the tread wear indicator bars. The
replacement should be the same size
and design tire, mounted on the
same wheel. The spare tire is not
designed to be mounted on a regular
wheel, and the spare wheel is not
designed for mounting a regular tire.INDICATOR LOCATION MARK
TREAD WEAR INDICATOR BAR
Compact Spare Tire42408/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
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22. Slowly turn the wheel nut wrenchclockwise to take up the slack of
the hoist cable. Make sure the
bracket is seated in the center hole
of the flat tire.
23. Turn the wheel nut wrench clockwise until the flat tire rests
against the underbody of the
vehicle and you hear the hoist
click.
Always raise the spare tire hoist, even if
you are not stowing a tire. If the hoist is
left down, it will be damaged during
driving and need to be replaced.
24. Store the jack in its holder. Turn the jack's end bracket to lock it in
place. Store the tools, and install
the cover.
25. Refer to Changing a Tire with
TPMS (see page355).
Loose items can fly around the
interior in a crash and could
seriously injure the occupants.
Store the wheel, jack, and tools
securely before driving.
WHEEL NUT WRENCH
Changing a Flat Tire43008/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
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PRIMARY UNDER-HOOD FUSE BOX
No. Amps. Circuits Protected1 120 A Main fuse － Not Used
2 － 1 － Not Used
2 － 2 － Not Used
2 － 3 30 A Rear Blower Motor
2 － 4 40 A ABS VSA
2 － 5 40 A Trailer Main
2 － 6 40 A Power Seats, Driver's Position
Memory System, Subwoofer
2 － 7 40 A Front Heated Seat, TPMS,
Moonroof, Driver's Lumbar
Support
2 － 8 － Not Used
3 － 1 60 A Fog Lights, Front Blower
Motor
3 － 2 40 A Headlights, Daytime Running
Lights
3 － 3 60 A Cooling Fan, Condenser Fan,
MG Clutch, Headlight
Washer
ꭧ
3－ 4 50 A Ignition Switch Main
ꭧ : Canadian model No. Amps. Circuits Protected
3 － 5 50 A Power Window
3 － 6 60 A SH-AWD, Power Tailgate
Open/Closer, Rear ACC
Socket, Cargo Area Light,
Rear Defroster
3 － 7 30 A ECU (PCM)
3 － 8 － Not Used
4 40 A Audio, Door Lock, Interior Lights
5 － Not Used
6 － Not Used
7 30 A Active Damper Control Unit
8 30 A Audio Amplifier
9 7.5 A Rear Entertainment System
10 15 A Hazard
11 15 A Horn, Stop
12 20 A ABS VSA
13 20 A Trailer (Brake)
14 20 A Rear Heated Seat
15 20 A A/C Inverter
CONTINUED
Fuse Locations
443
T aking Care of t he Unexpect ed
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INTERIOR FUSE BOXNo. Amps. Circuits Protected1 7.5 A TPMS
2 10 A Driver's Lumbar Support Motor
3 15 A Moonroof
4 20 A Front Heated Seats
5 10 A Audio No. Amps. Circuits Protected
6 7.5 A Interior Light
7 10 A Interior Light, Moonroof
8 20 A Door Lock
9 15 A ACC Socket
10 15 A IG Coil
11 30 A Windshield Wiper
12 10 A Subwoofer
13 20 A Passenger's Power Recline
14 20 A Driver's Power Slide
15 20 A Telescope Steering Wheel
16 20 A Driver's Power Recline
17 20 A Passenger's Power Slide
18 10 A Alternator
19 20 A Fuel Pump
20 7.5 A SH-AWD, Active Damper Control Unit
21 7.5 A Gauges No. Amps. Circuits Protected
22 10 A SRS
23 － Not Used
24 20 A Left Rear Power Window
25 20 A Right Rear Power Window
26 30 A Passenger's Power Window
27 30 A Driver's Power Window
28 20 A Tilt Steering Wheel
29 10 A ABS VSA
30 10 A A/C
31 15 A Headlight Auto Leveling,
Rear Wiper, Windshield/
Rear Washer
32 10 A ACC
33 － Not Used
AuxiliaryNo. Amps. Circuits Protected
1 7.5 A Starter DIAG
2 7.5 A STS
Auxiliary
Fuse Locations
445
T aking Care of t he Unexpect ed
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The diagrams in this section give you
the dimensions and capacities of
your vehicle and the locations of the
identification numbers. It also
includes information you should
know about your vehicle's tires and
emissions control systems.Identification Numbers
...............
450
Specifications
..............................
452
DOT Tire Quality Grading (U.S. Vehicles)
.................................
454
Tire Labeling
..............................
456
Tire Pressure Monitoring System
(TPMS) －Required Federal
Explanation
.........................
458
Emissions Controls
.....................
460
Three Way Catalytic Converter
................................
462
Emissions Testing
.......................
463
Technical Information
449
T echnical Inf ormat ion
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2009 MDX

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
459
T echnical Inf ormat ion
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SRS, Additional Information
.........
24
Additional Safety Precautions
..........................
35
Airbag Service
..........................
35
Airbag System Components
.....
24
How the Side Airbag Off Indicator Works
...................
33
How the SRS Indicator Works
..................................
33
How Your Front Airbags Works
..................................
27
How Your Side Airbags
Work
....................................
30
How Your Side Curtain Airbags Work
....................................
32
SRS Indicator
.........................
33, 66
START (Ignition Key Position)
.................................
129
Starting the Engine
....................
339
Auto Control Mode
.................
339
In Cold Weather at High
Altitude
................................
340
With a Dead Battery
................
432
State Emissions Testing
.............
463
Steam Coming from Engine
.......
434 Steering Wheel
Adjustment
..............................
124
Anti-theft Column Lock
...........
129
Buttons
....................
233, 270,280
Position Memory
....................
157
Stereo Sound System
....................
180, 181,200
Storage Compartment................
164
Storing Your Vehicle
..................
422
Sunglasses Holder
.....................
165
Sun Visor
...................................
166
Super Handling-All Wheel Drive ™
(SH-AWD
®) System
................
348
Supplemental Restraint System
..............................
9,24
Servicing
.............. ....................
35
SRS Indicator
......................
33, 66
System Components
................
24
Synthetic Oil
..............................
394
T
Tachometer
..................................
72
Tailgate
......................................
131
Opening the
............................
131 Open Monitor
......................
....
11
Power
......................................
132
Taillights, Changing Bulbs in
............................................
406
Taking Care of the Unexpected
............................
423
Technical Descriptions DOT Tire Quality Grading (U.S. Vehicles)
.............................
454
Emissions Control Systems
.....
460
Three Way Catalytic Converter
............................
462
Tire Pressure Monitoring System (TPMS) －Required Federal
Explanation
......................
458
Temperature Gauge
.....................
72
Temperature, Inside Sensor
.......
179
Temperature, Outside
..................
76
Tensioners, Seat Belts
..................
22
Tether Anchorage Points
.............
51
Theft Protection, Radio
..............
235
Three Way Catalytic Converter
...............................
462
Tilt/Telescopic Steering Wheel
.....................................
124
Timing Belt
................................
402
IndexX08/06/06 16:58:07 09 ACURA MDX MMC North America Owner's M 50 31STX620 enu
2009 MDX