tires Acura MDX 2007 Owner's Guide

To safely operate your vehicle, your
ti res must be the proper type and
size, in good condition with adequate
tread, and correctly inflated. Keeping
the tires properly inflated
provides the best combination of
handling, tread life, and riding
comfort.
Thetirepressuremonitoringsystem
(TPMS)will warnyouwhenatire
pressu re is low. See page for
inform ation on the TPMS.
The f ollowing pages give more
detailed inf ormation on how to take
care of your tires and what to do
when they need to be replaced.
Underinf lated tires wear unevenly,
adversely affect handling and fuel
economy, and are more likely to
fail from being overheated.
Overinf lated tires can make your
vehicleridemoreharshly,are
more prone to damage f rom road
hazards, and wear unevenly.
We recommend that you visually
check your tires everyday. 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 ) per
month. Remember to check the
sparetireatthesametime.
343
CONT INUED
Inf lation Guidelines
Tires
Maint enance
409
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.
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Tire Size Cold Tire Pressure
for Normal Driving
Front/Rear:
Check the pressure in the tires when
they are cold. This means the vehicle
has been parked for at least three
hours, or driven less than 1 mile (1.6
km). Add or release air, if needed, to
match the recommended cold tire
pressure.
If you check the pressure when the
tires are hot [driven for several miles
(kilometers)], you will see readings 4
to6psi(30to40kPa,0.3 to0.4
kgf/cm ) higher than the cold
reading. This is normal; do not
release air to match the cold
pressure. Tubeless
tires have some ability to
self-seal if they are punctu red. You
should look closely for punctu res if a
tire starts losing pressure.
Youshouldgetyourowntire
pressure gauge and use it whenever
you check your tire pressures. This
will make it easier for you to tell if a
pressu re loss is due to a tire problem
and not due to a variation between
gauges. The
following chart shows the
recommended cold tire pressures for
most normal and high-speed driving
conditions.
Thecompactsparetirepressureis:
For convenience, the recommended
tire sizes and cold tire pressures are
on a label on the driver’s doorjamb.
For additional inf ormation about
your tires, see page . 448
Tires
Recommended T ire Pressures
410
P255/55R18 104H
32 psi (220 kPa ,2.2 kgf/cm
)
60 psi (420 kPa , 4.2 kgf/cm)
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In addition to proper inf lation,
correct wheel alignment helps to
decrease tire wear. If you f ind a tire
is worn unevenly, have your dealer
check the wheel alignment.
Have your dealer check the tires if
you f eel a consistent vibration while
driving. A tire should always be
rebalanced if it is removed f rom the
wheel. When you have new tires
installed, make sure they are
balanced. This increases riding
comf ort and tire lif e. For best results,
have the installer perform a dynamic
balance.
Your tires have wear indicators
molded into the tread. When the
tread wears down, you will see a
band 1/2 inch (12.7 mm) wide band
across the tread. This shows there is
less than 1/16 inch (1.6 mm) of tread
lef t on the tire.
A tire this worn gives very little
traction on wet roads. You should
replace the tire if you can see three
or more tread wear indicators.
Every time you check inf lation, you
should also examine the tires f or
damage, f oreign objects, and wear.
Youshouldlookfor:
Bumps or bulges in the tread or
side of the tire. Replace the tire if
youfindeitherof theseconditions.
Cuts, splits, or cracks in the side
of the tire. Replace the tire if you
can see f abric or cord.
Excessive tread wear. T ire Maintenance
Tire Inspection
Tires
Maint enance
411
TREAD WEAR INDICATORS INDICATOR LOCATION MARKS
Improper wheel weights can damage
your vehicle’s aluminum wheels. Use
only Acura wheel weights f or balancing.
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To help increase tire lif e 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 diagram each time they are
rotated. If you purchase directional
tires, rotate only front-to-back.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 dif f erent
size or construction can cause the
ABS and vehicle stability assist
system (VSA) to work inconsistently.
TheABSworksbycomparingthe
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.It is best to replace all f our tires at
thesametime.If thatisnotpossible
or necessary, replace the two f ront
tires or two rear tires as a pair.
Replacing just one tire can seriously
af f ect your vehicle’s handling.
If you ever replace a wheel, make
sure that the wheel’s specif ications
match those of the original wheels.
Also be sure you use only TPMS
specif ic wheels. If you do not, the
tire pressure monitoring system will
notworkonthattire.
Replacement wheels are available at
your Acura dealer.
Tires
T ire Rotation
Replacing T ires and Wheels
412
Front
(For Non-directional
Tires and Wheels) Front
(For Directional
Tires and Wheels)
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´
Wheel:
Tires:
See page for info rmation about
DOT Tire Quality Grading, and page
f or tire size and labeling
inf ormation. 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 perf ormance in snowy
or icy conditions, you should install
snow tires or tire chains. They may
be required by local laws under
certain conditions.
450 448
Tires
Wheel and T ire Specif ications Winter Driving
Maint enance
413
18x8J
P255/55R18 104H
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.
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Ì
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 f our wheels. The traction
provided by snow tires on dry roads
maybelowerthanyouroriginaltires.
Check with the tire dealer f or
maximum speed recommendations.
Mount tire chains on your tires when
required by driving conditions or
local laws. Install them only on the
f ront tires.
Because your vehicle has limited tire
clearance, Acura strongly
recommends using the chains listed
below.
When installing cables, f ollow the
manuf acturer’s instructions, and
mount them as tight as you can.
Make sure they are not contacting
the brake lines or suspension. Drive
slowly with them installed. If you
hear them coming into contact with
the body or chassis, stop and
investigate. Remove them as soon as
you begin driving on cleared roads. SCC Super Z-6 SZ 435
Tire Chains
Snow T ires
Tires
414
Using the wrong chains, or not
properly installing chains, can
damage the brake lines and
cause a crash in which you can
be seriously injured or killed.
Follow all instructions in this
owner’s manual regarding the
selection and use of tire chains.
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If you need to park your vehicle f or
an extended period (more than 1
month), there are several things you
should do to prepare it f or storage.
Proper preparation helps prevent
deterioration and makes it easier to
get your vehicle back on the road. If
possible, store your vehicle indoors.Fill the f uel tank.
Change the engine oil and f ilter.
Wash and dry the exterior
completely.
Cleantheinterior.Makesurethe
carpeting, floor mats, etc., are
completely dry.
Leave the parking brake off. Put
the transmission in Park. Block the rear wheels.
If the vehicle is to be stored f or a
longer period, it should be
supported on jackstands so the
tires are of f the ground.
Leave one window open slightly (if
the vehicle is being stored
indoors).
Disconnect the battery.
Support the f ront and rear wiper
blade arms with a f olded towel or
ragsotheydonottouchthe
windshield.
To minimize sticking, apply a
silicone spray lubricant to all door
and tailgate seals. Also, apply a
vehiclebodywaxtothepainted
surfaces that mate with the door
and tailgate seals.Cover the vehicle with a
‘‘breathable’’ cover, one made
f rom a porous material such as
cotton. Non-porous materials, such
as plastic sheeting, trap moisture,
which can damage the paint.
If possible, periodically run the
engine until it reaches f ull
operating temperature (the
cooling f ans cycle on and of f
twice). Pref erably, do this once a
month.
Vehicle Storage
416
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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 inf lation pressure of the
compact spare tire every time you
check the other tires. It should be
inf lated to:
Follow these precautions:Do not mount snow chains on a
compact spare.
Do not use the compact spare tire
if you are towing a trailer.
Do not use your compact spare
tire on another vehicle unless it is
thesamemakeandmodel.
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 f or mounting a regular tire.
Never exceed 50 mph (80 km/h).
This tire gives a harsher ride and
less traction on some road
surf aces. Use greater caution
while driving. The low tire pressure indicator
stays on when you are driving with
thecompactsparetire.TheTPMS
indicator may also come on after
several miles (kilometers) driving.
Compact Spare Tire
418
INDICATOR LOCATION MARK
TREAD WEAR INDICATOR BAR
60 psi (420 kPa , 4.2 kgf/cm)
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If the f uel f ill door release button
does not work, use the release lever
inside the rear f use box lid in the
cargo area.To open the f uel f ill door, pull the
release lever rearward.Any other method of towing will
damage the drive system. When you
contact the towing agency, inf orm
them a f lat-bed is required.The operator will load
your vehicle on the back of a truck. If your vehicle needs to be towed,
call a professional towing service or
organization. Never tow your vehicle
with just a rope or chain. It is very
dangerous.
Opening the Fuel Fill Door
Manually
The only way you can saf ely tow
your vehicle is with f lat-bed
equipment. Emergency T owing
Opening the Fuel Fill Door Manually, Emergency Towing
T aking Care of t he Unexpect ed
433
LID
RELEASE LEVER
Towing with only two tires on the
ground will damage parts of the
all-wheel-drive system. Your vehicle
should be transported on a f lat-bed
truck or trailer.
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Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.................
Identif ication Numbers .444
................................
Specif ications .446
DOT Tire Quality Grading
......................
(U.S. Vehicles) .448
Unif orm Tire Quality ..................................
Grading .448
.................................
Treadwear .448
......................................
Traction .448
.............................
Temperature .449
.................................
Tire Labeling .450
Tire Pressure Monitoring System
......................................
(TPMS) .451 .......................
Emissions Controls .453
.....................
The Clean Air Act .453
Crankcase Emissions Control
....................................
System .453
Evaporative Emissions Control ....................................
System .453
Onboard Ref ueling Vapor ................................
Recovery .453
...
Exhaust Emissions Controls .454
....................
PGM-FI System .454
Ignition Timing Control
................................
System .454
Exhaust Gas Recirculation ...................
(EGR) System .454
Three Way Catalytic ...........................
Converter .454
....................
Replacement Parts .454
..
Three Way Catalytic Converter .455
..............
State Emissions Testing .456
T echnical Inf ormation
Technical Inf ormation
443
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