Acura MDX (2018 year). Manual — part 38

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Checking and Maintaining Wiper Blades

Checking Wiper Blades

If the wiper blade rubber has deteriorated, it will leave streaks and the hard surfaces
of the blade may scratch the window glass.

Changing the Front Wiper Blade Rubber

1. Lift the driver side wiper arm first, then the

passenger side.

2. Pry on the edge of the lock tab using a flat-

tip screwdriver to push it up.
Wrap the flat-tip screwdriver with a cloth to
prevent scratches.

3. Slide the holder off the wiper arm.

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Changing the Front Wiper Blade Rubber

NOTICE

Avoid dropping the wiper arm onto the windshield, it
may damage the wiper arm and/or the windshield.

Lock Tab

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Checking and Maintaining Wiper Blades

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Changing the Front Wiper Blade Rubber

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4. Slide the wiper blade out of the holder by

pulling the tabbed end out.

5. Remove the retainers from the wiper blade

that has been removed, and mount to a
new wiper blade.

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Correctly align the wiper blade
protrusion and the retainer grooves.

6. Slide the new wiper blade onto the holder

from the bottom end.

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The tab on the holder should fit in the
indent of the wiper blade.

7. Slide the holder onto the wiper arm, then

push down the lock tab.

8. Lower the passenger side wiper arm first,

then the driver side.

Blade

Retainer

Blade

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Checking and Maintaining Wiper Blades

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Changing the Rear Wiper Blade Rubber

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Changing the Rear Wiper Blade Rubber

1. Raise the wiper arm off.

2. Slide the wiper blade out from the end with

the indent.

3. Remove the retainers from wiper blade and

mount to a new rubber blade.

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Changing the Rear Wiper Blade Rubber

NOTICE

Avoid dropping the wiper arm, it may damage the
rear window.

Blade

Retainer

Rubber

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Checking and Maintaining Wiper Blades

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Changing the Rear Wiper Blade Rubber

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4. Slide the new wiper blade onto the holder.

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Make sure it is engaged correctly, then
install the wiper blade assembly onto the
wiper arm.

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Checking and Maintaining Tires

Checking Tires

To safely operate your vehicle, your tires must be of the proper type and size, in
good condition with adequate tread, and properly inflated.

■

Inflation guidelines

Properly inflated tires provide the best combination of handling, tread life, and comfort.
Refer to the driver’s doorjamb label or specifications page for the specified pressure.

Underinflated tires wear unevenly, adversely affect handling and fuel economy, and
are more likely to fail from overheating.

Overinflated tires make your vehicle ride harshly, are more prone to road hazards,
and wear unevenly.

Every day before you drive, look at each of the tires. If one looks lower than the
others, check the pressure with a tire gauge.

At least once a month or before long trips, use a gauge to measure the pressure in
all tires, including the spare

*

. Even tires in good condition can lose 1–2 psi (10–20

kPa, 0.1–0.2 kgf/cm

2

) per month.

■

Inspection guidelines

Every time you check inflation, also examine the tires and valve stems.
Look for:
• Bumps or bulges on the side or in the tread. Replace the tire if you find any cuts,

splits, or cracks in the side of the tire. Replace it if you see fabric or cord.

• Remove any foreign objects and inspect for air leaks.
• Uneven tread wear. Have a dealer check the wheel alignment.
• Excessive tread wear.

2 Wear Indicators P. 607

• Cracks or other damage around valve stem.

1

Checking Tires

Measure the air pressure when tires are cold. This
means the vehicle has been parked for at least three
hours, or driven less than 1 mile (1.6 km). If
necessary, add or release air until the specified
pressure is reached.

If checked when hot, tire pressure can be as much as
4–6 psi (30–40 kPa, 0.3–0.4 kgf/cm

2

) higher than if

checked when cold.

Have a dealer check the tires if you feel a consistent
vibration while driving. New tires and any that have
been removed and reinstalled should be properly
balanced.

3

WARNING

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.

* Not available on all models

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Tire and Loading Information Label

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Tire and Loading Information Label

The label attached to the driver’s doorjamb provides necessary tire and loading
information.

Tire Labeling

The tires that came on your vehicle have a
number of markings. Those you should be
aware of are described below.

Whenever tires are replaced, they should be replaced with tires of the same size.

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Tire and Loading Information Label

The tire and loading information label attached to the
driver’s doorjamb contains:

a

The number of people your vehicle can carry.

b

The total weight your vehicle can carry. Do not
exceed this weight.

c

The original tire sizes for front, rear, and spare.

d

The proper cold tire pressure for front, rear, and
spare.

Label
Example

Example

Tire Size

Tire
Identification
Number (TIN)

Maximum
Tire Load

Maximum
Tire Pressure

Tire Size

■

Tire Sizes

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Tire Sizes

Following is an example of tire size with an
explanation of what each component means.
P235/60R18 102V
P: Vehicle type (P indicates passenger vehicle).
235: Tire width in millimeters.
60: Aspect ratio (the tire’s section height as a
percentage of its width).
R: Tire construction code (R indicates radial).
18: Rim diameter in inches.
102: Load index (a numerical code associated with
the maximum load the tire can carry).
V: Speed symbol (an alphabetical code indicating the
maximum speed rating).

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Tire Labeling

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The tire identification number (TIN) is a group of numbers and letters that look like
the example in the side column. TIN is located on the sidewall of the tire.

Cold Tire Pressure – The tire air pressure when the vehicle has been parked for at
least three hours or driven less than 1 mile (1.6 km).
Load Rating – Means the maximum load that a tire is rated to carry for a given
inflation pressure.
Maximum Inflation Pressure – The maximum tire air pressure that the tire can
hold.
Maximum Load Rating – Means the load rating for a tire at the maximum
permissible inflation pressure for that tire.
Recommended Inflation Pressure – The cold tire inflation pressure recommended
by the manufacturer.
Treadwear Indicators (TWI) – Means the projections within the principal grooves
designed to give a visual indication of the degrees of wear of the tread.

■

Tire Identification Number (TIN)

■

Glossary of Tire Terminology

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Tire Identification Number (TIN)

DOT B97R FW6X 2209
DOT: This indicates that the tire meets all
requirements of the U.S. Department of
Transportation.
B97R: Manufacturer’s identification mark.
FW6X: Tire type code.
22 09: Date of manufacture.

Year
Week

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Checking and Maintaining Tires

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DOT Tire Quality Grading (U.S. Vehicles)

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DOT Tire Quality Grading (U.S. Vehicles)

The tires on your vehicle meet all U.S. Federal Safety
Requirements. All tires are also graded for treadwear, traction,
and temperature performance according to Department of
Transportation (DOT) standards. The following explains these
gradings.

Quality grades can be found where applicable on the tire sidewall
between tread shoulder and maximum section width.

The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a
specified government test course. For example, a tire graded 150
would wear one and one-half (1 1/2) times as well on the
government course as a tire graded 100. The relative performance
of tires depends upon the actual conditions of their use, however,
and may depart significantly from the norm due to variations in
driving habits, service practices and differences in road
characteristics and climate.

■

Uniform Tire Quality Grading

■

Treadwear

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Uniform Tire Quality Grading

For example:
Treadwear 200
Traction AA
Temperature A

All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.

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DOT Tire Quality Grading (U.S. Vehicles)

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The traction grades, from highest to lowest, are AA, A, B, and C.
Those grades represent the tire’s ability to stop on wet pavement
as measured under controlled conditions on specified
government test surfaces of asphalt and concrete. A tire marked
C may have poor traction performance.

The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat and its
ability to dissipate heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sustained high
temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of performance which
all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel than the minimum
required by law.

■

Traction

■

Temperature

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Traction

Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.

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Temperature

Warning: The temperature grade for
this tire is established for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive loading,
either separately or in combination,
can cause heat buildup and possible
tire failure.

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Wear Indicators

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Wear Indicators

The groove where the wear indicator is
located is 1/16 inch (1.6 mm) shallower than
elsewhere on the tire. If the tread has worn so
that the indicator is exposed, replace the tire.
Worn out tires have poor traction on wet
roads.

Tire Service Life

The life of your tires is dependent on many factors, including driving habits, road
conditions, vehicle loading, inflation pressure, maintenance history, speed, and
environmental conditions (even when the tires are not in use).

In addition to regular inspections and inflation pressure maintenance, it is
recommended that you have annual inspections performed once the tires reach five
years old. All tires, including the spare

*

, should be removed from service after 10

years from the date of manufacture, regardless of their condition or state of wear.

Example of a Wear
Indicator mark

* Not available on all models

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Tire and Wheel Replacement

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Tire and Wheel Replacement

Replace your tires with radials of the same size, load range, speed rating, and
maximum cold tire pressure rating (as shown on the tire’s sidewall). Using tires of a
different size or construction can cause certain vehicle systems such as the ABS and
Vehicle Stability Assist (VSA®) system to work incorrectly.

It is best to replace all four tires at the same time. If that isn’t possible, replace the
front or rear tires in pairs.

If you replace a wheel, only use TPMS specified wheels approved for your vehicle.
Make sure that the wheel’s specifications match those of the original wheels.

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Tire and Wheel Replacement

3

WARNING

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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Tire Rotation

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Tire Rotation

Rotating tires according to the maintenance messages on the MID helps to distribute
wear more evenly and increase tire life.

■

Tires without rotation marks

Rotate the tires as shown here.

■

Tires with rotation marks

Rotate the tires as shown here.

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Tire Rotation

Tires with directional tread patterns should only be
rotated front to back (not from one side to the other).
Directional tires should be mounted with the rotation
indication mark facing forward, as shown below.

Front

Rotation Mark

Front

Front

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Winter Tires

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Winter Tires

If driving on snowy or frozen roads, mount all season marked M+S tires, snow tires,
or tire chains; reduce speed; and maintain sufficient distance between vehicles when
driving.

Be particularly careful when operating the steering wheel or brakes to prevent
skidding.

Use tire chains, snow tires, or all season tires when necessary or according to the law.

When mounting, refer to the following points.

For winter tires:
• Select the size and load ranges that are the same as the original tires.
• Mount the tires to all four wheels.
For tire chains:
• Install them on the front tires only.
• Because your vehicle has limited tire clearance, we strongly recommend using the

chains listed below:

• Follow the chain manufacturer’s instruction when installing. Mount them as

tightly as you can.

• Check that the chains do not touch the brake lines or suspension.
• Drive slowly.

Cable-type: SCC Cable Chain Super Z LT - ZT735

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Winter Tires

NOTICE

Traction devices that are the wrong size or improperly
installed can damage your vehicle’s brake lines,
suspension, body, and wheels. Stop driving if they are
hitting any part of the vehicle.

When tire chains are mounted, follow the chain
manufacturer’s instructions regarding vehicle
operational limits.

If your vehicle is equipped with summer tires, be
aware that these tires are not designed for winter
driving conditions. For more information, contact a
dealer.

3

WARNING

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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Battery

Checking the Battery

The condition of the battery is monitored by a
sensor located on the negative terminal of the
battery. If there is a problem with this sensor,
the multi-information display (MID) will
display a warning message. If this happens,
have you vehicle inspected by a dealer.

Check the battery terminals for corrosion
monthly.

If your vehicle’s battery is disconnected or goes dead:
• The audio system is disabled.

2 Audio System Theft Protection P. 236

• The clock resets.

2 Clock P. 138

• The navigation system

*

is disabled.

2 Refer to navigation system manual

Charging the Battery

*

Disconnect both battery cables to prevent damaging your vehicle’s electrical system.
Always disconnect the negative (–) cable first, and reconnect it last.

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Battery

WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.

When you find corrosion, clean the battery terminals
by applying a baking powder and water solution.
Clean the terminals with a damp towel. Cloth/towel
dry the battery. Coat the terminals with grease to
help prevent future corrosion.

When replacing the battery, the replacement must be
of the same specifications.
Consult a dealer for more information.

3

WARNING

The battery gives off explosive hydrogen
gas during normal operation.

A spark or flame can cause the battery to
explode with enough force to kill or
seriously hurt you.

When conducting any battery
maintenance, wear protective clothing and
a face shield, or have a skilled technician do
it.

Battery

* Not available on all models

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Battery

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Charging the AGM Battery

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Charging the AGM Battery

*

AGM labeled batteries like those installed in your vehicle require a compatible
charger to be properly charged. Damage to the battery can result if the battery is
charged improperly or with the wrong equipment. For more information on how to
charge your vehicle’s AGM battery, consult a dealer.

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Battery

The battery installed in this vehicle is specifically
designed for a model with Auto Idle Stop.
Using a battery other than this specified type may
shorten the battery life, and prevent Auto Idle Stop
from activating. If you need to replace the battery,
make sure to select the specified type. Ask a dealer
for more details.

Models with Auto Idle Stop

* Not available on all models

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Remote Transmitter Care

Replacing the Button Battery

If the indicator does not come on when the button is pressed, replace the battery.

1. Remove the built-in key.

2. Remove the upper half of the cover by

carefully prying on the edge with a coin.

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Remove carefully to avoid losing the
buttons.

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Wrap a coin with a cloth to prevent
scratching the transmitter.

3. Make sure to replace the battery with the

correct polarity.

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Replacing the Button Battery

NOTICE

An improperly disposed of battery can damage the
environment. Always confirm local regulations for
battery disposal.

Replacement batteries are commercially available or
at a dealer.

3

WARNING

CHEMICAL BURN HAZARD
The battery that powers the remote
transmitter can cause severe internal burns
and can even lead to death if swallowed.
Keep new and used batteries away from
children.
If you suspect that a child has swallowed
the battery, seek medical attention
immediately.

Models without remote control engine start system

Battery type: CR2032

Battery

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