Infiniti QX56 (2012 year). Manual — part 31

8-20

Maintenance and do-it-yourself

CLEANING

If your windshield is not clear after using
the windshield washer or if a wiper blade
chatters when running, wax or other
material may be on the blade or wind-
shield.

Clean the outside of the windshield with a
washer solution or a mild detergent. Your
windshield is clean if beads do not form
when rinsing with clear water.

Clean each blade by wiping it with a cloth
soaked in a washer solution or a mild
detergent. Then rinse the blade with clear
water. If your windshield is still not clear
after cleaning the blades and using the
wiper, replace the blades.

Worn windshield wiper blades can damage
the windshield and impair driver vision.

SDI2048

REPLACING

Replace the wiper blades if they are worn.

1. Pull the wiper arm.

2. Push the release tab

*

A

, and then

move the wiper blade down the wiper
arm

*

1

while pushing the release tab

to remove.

3. Insert the new wiper blade onto the

wiper arm until a click sounds.

4. Rotate the wiper blade so the dimple is

in the groove.

CAUTION

. After wiper blade replacement, return

the wiper arm to its original position;

otherwise it may be damaged when the
hood is opened.

. Make sure the wiper blades contact the

glass; otherwise the arm may be da-
maged from wind pressure.

WINDSHIELD WIPER BLADES

SDI2516

Be careful not to clog the washer nozzle

*

A

. This may cause improper windshield

washer operation. If the nozzle is clogged,
remove any objects with a needle or small
pin

*

B

. Be careful not to damage the

nozzle.

Contact an INFINITI retailer if checking or
replacement is required.

If the brakes do not operate properly, have
the brakes checked by an INFINITI retailer.

SELF-ADJUSTING BRAKES

Your vehicle is equipped with self-adjust-
ing brakes.

The disc-type brakes self-adjust every time
the brake pedal is applied.

WARNING

See an INFINITI retailer for a brake system
check if the brake pedal height does not
return to normal.

BRAKE PAD WEAR WARNING

The disc brake pads have audible wear
warnings. When a brake pad requires
replacement, it will make a high pitched
scraping sound when the vehicle is in
motion. This scraping sound will first occur
only when the brake pedal is depressed.
After more wear of the brake pad, the
sound will always be heard even if the
brake pedal is not depressed. Have the
brakes checked as soon as possible if the
wear warning sound is heard.

Under some driving or climate conditions,

Maintenance and do-it-yourself

8-21

REAR WINDOW WIPER BLADES

BRAKES

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Maintenance and do-it-yourself

occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is
normal and does not affect the function or
performance of the brake system.

Proper brake inspection intervals should
be followed. For additional information,
see the maintenance log section of your
“INFINITI Service and Maintenance Guide”
for maintenance intervals.

BRAKE BOOSTER

Check the brake booster function as
follows:

1. With the engine off, depress and

release the foot brake pedal more than
20 times. When the foot brake pedal
movement (distance of travel) remains
the same from one pedal application to
the next, continue on to the next step.

2. While depressing the foot brake pedal,

start the engine.

3. With the foot brake pedal depressed,

stop the engine. Keep the pedal de-
pressed for about 30 seconds.

4. Run the engine for 1 minute without

depressing the foot brake pedal, then
turn it off. Depress the foot brake pedal

several times. The pedal travel distance
will decrease gradually with each de-
pression as the hydraulic pressure
decreases.

If the brakes do not operate properly, have
the brakes checked by an INFINITI retailer.

SDI2518

SDI2532

FUSES

ENGINE COMPARTMENT

CAUTION

Never use a fuse of a higher or lower
amperage rating than that specified on the
fuse box cover. This could damage the
electrical system or cause a fire.

If any electrical equipment does not
operate, check for an open fuse.

1. Be sure the ignition switch is pushed to

the OFF or LOCK position and the
headlight switch is turned to OFF.

2. Open the engine hood and remove the

cover on the battery.

3. Remove the fuse/fusible link holder

cover

*

1

,

*

2

or

*

3

.

4. Remove the fuse with the fuse puller.

SDI1754

5. If the fuse is open

*

A

, replace it with a

new fuse

*

B

. Spare fuses are stored in

the passenger compartment fuse box.

6. If a new fuse also opens, have the

electrical system checked and repaired
by an INFINITI retailer.

Fusible links

If any electrical equipment does not
operate and fuses are in good condition,
check the fusible links. If any of these
fusible links are melted, replace only with
genuine INFINITI parts.

Maintenance and do-it-yourself

8-23

8-24

Maintenance and do-it-yourself

SDI2519

PASSENGER COMPARTMENT

CAUTION

Never use a fuse of a higher or lower
amperage rating than that specified on the
fuse box cover. This could damage the
electrical system or cause a fire.

If any electrical equipment does not
operate, check for an open fuse.

1. Be sure the ignition switch is pushed to

the OFF or LOCK position and the
headlight switch is turned to OFF.

2. Open the fuse box lid.

3. Remove the fuse with the fuse puller

*

A

.

4. If the fuse is open, replace it with a new

fuse.

5. If a new fuse also opens, have the

electrical system checked and repaired
by an INFINITI retailer. Spare fuses are
stored in the fuse box.

SDI2704

Extended storage switch (if so
equipped)

To reduce battery drain, the extended
storage switch comes from the factory
switched off. Prior to delivery of your
vehicle, the switch is pushed in (switched
on) and should always remain on.

If any electrical equipment does not
operate, remove the extended storage
switch and check for an open fuse.

NOTE:

If the extended storage switch malfunc-
tions or if the fuse is open, it is not
necessary to replace the switch. In this
case, remove the extended storage switch
and replace it with a new fuse of the same
rating.
How to remove the extended storage
switch:

1. To remove the extended storage switch,

be sure the ignition switch is in the OFF
or LOCK position.

2. Be sure the headlight switch is in the

OFF position.

3. Remove the fuse box cover.

4. Pinch the locking tabs

*

1

found on

each side of the storage switch.

5. Pull the storage switch straight out

from the fuse box

*

2

.

CAUTION

Be careful not to allow children to swallow
the battery and removed parts.

SDI2451

Replace the battery as follows:

1. Release the lock knob at the back of the

Intelligent Key and remove the mechan-
ical key.

2. Insert a small screwdriver into the slit

of the corner and twist it to separate
the upper part from the lower part. Use

Maintenance and do-it-yourself

8-25

INTELLIGENT KEY BATTERY REPLACEMENT

8-26

Maintenance and do-it-yourself

a cloth to protect the casing.

3. Replace the battery with a new one.

Recommended battery: CR2025 or
equivalent.

.

Do not touch the internal circuit and
electric terminals as it could cause a
malfunction.

.

Hold the battery by the edges.
Holding the battery across the con-
tact points will seriously deplete the
storage capacity.

.

Make sure that the + side faces the
bottom of the case.

SDI2452

4. Align the tips of the upper and lower

parts

*

1

, and then push them together

until it is securely closed

*

2

.

5. Push the buttons two or three times to

check its operation.

See an INFINITI retailer if you need any
assistance for replacement.

FCC Notice:

For USA:

This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-

ence received, including interference that
may cause undesired operation.

Note: Changes or modifications not ex-
pressly approved by the party responsible
for compliance could void the user

’s

authority to operate the equipment.

For Canada:

This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions: (1) this
device may not cause interference, and
(2) this device must accept any interfer-
ence, including interference that may
cause undesired operation of the device.

SDI2606

1.

Map light

2.

Parking light

3.

Front side marker light

4.

Front turn signal light

5.

Fog light

6.

Headlight (high-beam, low-beam)

7.

Puddle light

8.

Step light

9.

Side turn signal light

10. Cargo light
11. High-mounted stop light
12. Front armrest light

13. Rear armrest light
14. Rear personal light
15. Rear combination light (tail/stop/turn

signal/side marker light)

16. Tail light
17. Back-up light
18. License plate light

Maintenance and do-it-yourself

8-27

LIGHTS

8-28

Maintenance and do-it-yourself

HEADLIGHTS

Replacing

Fog may temporarily form inside the lens of
the exterior lights in the rain or in a car
wash. A temperature difference between
the inside and the outside of the lens
causes the fog. This is not a malfunction. If
large drops of water collect inside the lens,
contact an INFINITI retailer.

Xenon headlight bulb:

If replacement is required, see an INFINITI
retailer.

WARNING

HIGH VOLTAGE

When xenon headlights are on, they pro-
duce a high voltage. To prevent an electric
shock, never attempt to modify or disas-
semble. Always have your xenon headlights
replaced at an INFINITI retailer. For addi-
tional information, see

“Headlight and turn

signal switch

” in the “2. Instruments and

controls

” section.

EXTERIOR AND INTERIOR LIGHTS

Item

Wattage (W)

Bulb No.

Headlight*

High/Low beams (Xenon)

35

D2S

Front turn signal light*

21

WY21W

Fog light*

35

H8

Parking light*

5

W5W

Front side marker light*

5

W5W

Rear combination light*

tail

5

W5W

back-up

16

W16W

stop/tail

LED

—

side marker

LED

—

turn signal

21

WY21W

License plate light

5

W5W

Puddle light*

LED

—

Front and rear armrest light*

LED

—

Map light

8

—

Rear personal light

8

—

Cargo light

8

—

Vanity mirror light

2

—

Step light*

8

—

High-mounted stop light*

LED

—

*:

See an INFINITI retailer for replacement.

NOTE: Always check with the Parts Department at an INFINITI retailer for the latest

information about parts.

Replacement procedures

All other lights are either type A, B, C, D, E
or F. When replacing a bulb, first remove
the lens and/or cover.

SDI1679

SDI2030

Map light

SDI2031

Rear personal light

Maintenance and do-it-yourself

8-29

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Maintenance and do-it-yourself

SDI1729

Cargo light

SDI2032

Vanity mirror light

If you have a flat tire, see

“Flat tire” in the

“6. In case of emergency” section.

TIRE PRESSURE

Tire Pressure Monitoring System
(TPMS)

This vehicle is equipped with the Tire
Pressure Monitoring System (TPMS). It
monitors tire pressure of all tires except
the spare. When the low tire pressure
warning light is lit and the CHECK TIRE
PRESSURE warning (if so equipped) ap-
pears in the dot matrix liquid crystal
display, one or more of your tires is
significantly under-inflated.

The TPMS will activate only when the
vehicle is driven at speeds above 16 MPH
(25 km/h). Also, this system may not
detect a sudden drop in tire pressure (for
example a flat tire while driving).

For more details, see

“Low tire pressure

warning light

” in the “2. Instruments and

controls

” section, “Tire Pressure Monitor-

ing System (TPMS)

” in the “5. Starting and

driving

” section and “Tire Pressure Mon-

itoring System (TPMS)

” in the “6. In case

of emergency

” section.

Tire inflation pressure

Check the pressure of the tires
(including the spare) often and al-
ways prior to long distance trips. The
recommended tire pressure specifi-
cations are shown on the Tire and
Loading Information label under the
“Cold Tire Pressure” heading. The
Tire and Loading Information label is
affixed to the driver side center pillar.
Tire pressures should be checked
regularly because:
. Most tires naturally lose air over

time.

. Tires can lose air suddenly when

driven over potholes or other
objects or if the vehicle strikes a
curb while parking.

The tire pressures should be checked
when the tires are cold. The tires are
considered COLD after the vehicle
has been parked for 3 or more hours,
or driven less than 1 mile (1.6 km) at
moderate speeds.

WHEELS AND TIRES

TPMS with Tire Inflation Indicator
provides visual and audible signals
outside the vehicle for inflating the
tires to the recommended COLD tire
pressure. (See

“TPMS with Tire Infla-

tion Indicator

” in the “5. Starting and

driving

” section about the TPMS with

Tire Inflation Indicator.)

Incorrect tire pressure, including
under inflation, may adversely affect
tire life and vehicle handling.

WARNING

. Improperly inflated tires can fail

suddenly and cause an accident.

. The Gross Vehicle Weight rating

(GVWR) is located on the F.M.V.S.
S./C.M.V.S.S. certification label.
The vehicle weight capacity is
indicated on the Tire and Loading
Information label. Do not load
your vehicle beyond this capacity.
Overloading your vehicle may re-
sult in reduced tire life, unsafe

operating conditions due to pre-
mature tire failure, or unfavorable
handling characteristics and could
also lead to a serious accident.
Loading beyond the specified ca-
pacity may also result in failure of
other vehicle components.

. Before taking a long trip, or

whenever you heavily load your
vehicle, use a tire pressure gauge
to ensure that the tire pressures
are at the specified level.

. For additional information regard-

ing tires, refer to

“Important Tire

Safety Information

” (US) or “Tire

Safety Information

” (Canada) in

the Warranty Information Booklet.

Maintenance and do-it-yourself

8-31

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Maintenance and do-it-yourself

SDI2496

Tire and Loading Information label

*

1 Seating capacity: The maximum

number of occupants that can be
seated in the vehicle.

*

2 Vehicle load limit: See

“Vehicle

loading information

”in the “9.

Technical and consumer informa-
tion

” section.

*

3 Original size: The size of the tires

originally installed on the vehicle
at the factory.

*

4 Cold tire pressure: Inflate the

tires to this pressure when the
tires are cold. Tires are consid-
ered COLD after the vehicle has
been parked for 3 or more hours,
or driven less than 1 mile (1.6
km) at moderate speeds. The
recommended cold tire inflation
is set by the manufacturer to
provide the best balance of tire
wear, vehicle handling, driveabil-
ity, tire noise, etc., up to the
vehicle

’s GVWR.

*

5 Tire size

— see “Tire labeling”

later in this section.

*

6 Spare tire size or compact spare

tire size (if so equipped)

SDI1949

Checking the tire pressure

1. Remove the valve stem cap from

the tire.

2. P r e s s

t h e

p r e s s u r e

g a u g e

squarely onto the valve stem. Do
not press too hard or force the
valve stem sideways, or air will
escape. If the hissing sound of air
escaping from the tire is heard
while checking the pressure, re-
position the gauge to eliminate
this leakage.

3. Remove the gauge.

4. Read the tire pressure on the

gauge stem and compare it to
the specification shown on the
Tire and Loading Information la-
bel.

5. Add air to the tire as needed. If

too much air is added, press the
core of the valve stem briefly with
the tip of the gauge stem to
release pressure. Recheck the
pressure and add or release air
as needed.

6. Install the valve stem cap.

7. Check the pressure of all other

tires, including the spare.

SIZE

COLD TIRE

INFLATION

PRESSURE

FRONT

ORIGINAL

TIRE

P275/50R22
111H

240 kPa,
35 PSI

P275/60R20
114H

240 kPa,
35 PSI

REAR ORI-

GINAL TIRE

P275/50R22
111H

240 kPa,
35 PSI

P275/60R20
114H

240 kPa,
35 PSI

SPARE TIRE

P275/60R20
114H

240 kPa,
35 PSI

Maintenance and do-it-yourself

8-33

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Maintenance and do-it-yourself

SDI1575

Example

TIRE LABELING

Federal law requires tire manufac-
turers to place standardized informa-
tion on the sidewall of all tires. This
information identifies and describes
the fundamental characteristics of
the tire and also provides the tire
identification number (TIN) for safety
standard certification. The TIN can be
used to identify the tire in case of a
recall.

SDI1606

Example

*

1 Tire size (example: P215/60R16

94H)

1. P: The

“P” indicates the tire is

designed for passenger vehicles.
(Not all tires have this informa-
tion.)

2. Three-digit number (215): This

number gives the width in milli-
meters of the tire from sidewall
edge to sidewall edge.

3. Two-digit number (60): This num-

ber, known as the aspect ratio,

gives the tire

’s ratio of height to

width.

4. R: The

“R” stands for radial.

5. Two-digit number (16): This num-

ber is the wheel or rim diameter in
inches.

6. Two- or three-digit number (94):

This number is the tire

’s load

index. It is a measurement of
how much weight each tire can
support. You may not find this
information on all tires because it
is not required by law.

7. H: Tire speed rating. You should

not drive the vehicle faster than
the tire speed rating.

SDI1607

Example

*

2 TIN (Tire Identification Number)

for a new tire (example: DOT XX
XX XXX XXXX)

1. DOT: Abbreviation for the

“Depart-

ment of Transportation

”. The sym-

bol can be placed above, below or
to the left or right of the Tire
Identification Number.

2. Two-digit code: Manufacturer

’s

identification mark

3. Two-digit code: Tire size

4. Three-digit code: Tire type code

(Optional)

5. Three-digit code: Date of Manu-

facture

6. Four numbers represent the week

and year the tire was built. For
example, the numbers 3103
means the 31st week of 2003. If
these numbers are missing, then
look on the other sidewall of the
tire.

*

3 Tire ply composition and materi-

al
The number of layers or plies of
rubber-coated fabric in the tire.
Tire manufacturers also must
indicate the materials in the tire,
which include steel, nylon,
polyester, and others.

*

4 Maximum permissible inflation

pressure
This number is the greatest
amount of air pressure that
should be put in the tire. Do
not exceed the maximum per-

missible inflation pressure.

*

5 Maximum load rating

This number indicates the max-
imum load in kilograms and
pounds that can be carried by
the tire. When replacing the tires
on the vehicle, always use a tire
that has the same load rating as
the factory installed tire.

*

6 Term of

“tubeless” or “tube

type

”

Indicates whether the tire re-
quires an inner tube (

“tube

type

”) or not (“tubeless”).

*

7 The word

“radial”

The word

“radial” is shown, if

the tire has radial structure.

*

8 Manufacturer or brand name

Manufacturer or brand name is
shown.

Other tire-related terminology:

In addition to the many terms that
are defined throughout this section,
Intended Outboard Sidewall is (1) the
sidewall that contains a whitewall,

Maintenance and do-it-yourself

8-35