Page 377 of 442

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 ) per
month. Remember to check the
sparetireatthesametime. If
you check air pressures 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
readings. This is normal. Do not let
air out to match the recommended
cold air pressure. The tire will be
underinflated.
While tubeless tires have some
ability to self-seal if they are
punctured, you should look closely
for punctures if a tire starts losing
pressure. Youshoulduseyourowntire
pressure gauge whenever you check
your tire pressu res. This will make it
easier for you to tell if a pressure
loss is due to a tire problem and not
due to a variation between gauges. The following chart shows the
recommended cold tire pressures f or
most normal and high-speed driving
conditions.
For additional inf ormation about
your tires, see page . For convenience, the recommended
tire sizes and cold tire pressures are
on a label on the driver’s doorjamb. Thecompactsparetirepressureis:
Check the air pressures when the
tires are cold. This means the
vehicle has been parked f or at least 3
hours, or driven less than 1 mile (1.6
km). Add or release air, if needed, to
match the recommended cold tire
pressures. 412
Cold Tire Pressure
for Normal Driving
Tire Size
Front/Rear:
Tires
Recommended T ire Pressures
Maint enance
373
60 psi (420 kPa , 4.2 kgf/cm)
P235/55R18 99V 32 psi (220 kPa , 2.2 kgf/cm
)
——
y
y
() yy
Page 378 of 442

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. 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. 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.
Tires
Tire Inspection
Tire Maintenance
374
INDICATOR LOCATION MARKS
TREAD WEAR INDICATORS
Improper wheel weights can damage
your vehicle’s aluminum wheels. Use
only genuine Acura wheels weights f or
balancing.
——
y
y
() yy
Page 379 of 442

To help increase tire lif e and
distribute wear more evenly, rotate
the tires according to the
maintenance messages displayed on
the inf ormation display or multi-
inf ormation display (depending on
models). Move the tires to the
positions shown in the diagram each
time they are rotated. If you
purchase directional tires, rotate
only f ront-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 the new one matches the
specif ications of the original.
Replacement wheels are available at
your dealer.
Tires
T ire Rotation
Replacing T ires and Wheels
Maint enance
375
Front Front
(For Non-directional
Tires and Wheels) (For Directional
Tires and Wheels)
——
y
y
() yy
Page 380 of 442

´
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.
Wheels:
Tires:
See
page for info rmation about
DOT Tire Quality Grading, and page
f or tire size and labeling
inf ormation.
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.
410
412 Winter Driving
Wheel and T ire Specif ications
Snow T ires
Tires
376
18x71/2J
P235/55R18 99V(TPMS)
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.
——
y
y
() y
y
Page 381 of 442

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
youbegindrivingonclearedroads.
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, made by Security Chain
Company (SCC).
Cable type: Shur Grip Z
SZ343
Tires
Tire Chains
Maint enance
377
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.
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.
——
y
y
() yy
Page 382 of 442

µ
Check
the condition of the battery
monthlybylookingatthetest
indicator window. The label on the
battery explains the test indicato r’s
colors.
If you need to connect the battery to
a charger, disconnect both cables to
prevent damaging your vehic le’s
electrical system. Always disconnect
the negative ( ) cable first, and
reconnect it last.Battery
posts,
terminals, and related accessories
contain lead and lead compounds.
If
additional battery maintenance is
needed, see your dealer or a
qualified technician.
Check
the terminals for corrosion (a
white or yellowish powder). To
remove it, cover the terminals with a
solution of baking soda and water. It
will bubble up and turn brown. When
this stops, wash it off with plain
water. Dry off the battery with a
cloth or paper towel. Coat the
terminals with grease to help prevent
future corrosion.
If your vehicle’s battery is
disconnected, or goes dead, the time
setting will be reset to 1:00. To set
the time again, f ollow the setting
procedure (see page ). 198
On RDX modelsWARNING:
Wash your hands af ter handling.
Checking the Battery
378
TEST INDICATOR WINDOW
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.
Wear protective clothing and a
face shield, or have a skilled
technician do the battery
maintenance.
——
y
y
() yy
Page 383 of 442
If your vehicle’s battery is
disconnected or goes dead, the audio
system will disable itself. The next
timeyouturnontheradioyouwill
see ‘‘ ’’ in the frequency
display. Use the preset bars or preset
buttons (depending on models) to
enter the five-digit code (see page
). The navigation system will also
disableitself.Thenexttimeyouturn
on the ignition switch, the system
will require you to enter a PIN
bef ore it can be used. Ref er to the
navigation system manual.
239On RDX with Technology Package
model
Checking the Battery
Maint enance
379
——
y
y
() yy
Page 384 of 442

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.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.
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 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. 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.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.
Leave the parking brake off. Put
the transmission in Park.
Vehicle Storage
380
——
y
y
() yy