2004 NISSAN FRONTIER tires

When driving in areas using road salt or other
corrosive materials, check lubrication frequently.
Lights*Clean the headlights on a regular basis.
Make sure that the headlights, stop lights, tail
lights, turn signal lights, and other lights are all
operating properly and installed securely. Also
check headlight aim.
Road wheel nuts*When checking the tires,
make sure no wheel nuts are missing, and check
for any loose wheel nuts. Tighten if necessary.
Tire rotation*Tires should be rotated every
7,500 miles (12,000 km) .
Tires*Check the pressure with a gauge often
and always prior to long distance trips. If neces-
sary, adjust the pressure in all tires, including the
spare, to the pressure specified. Check carefully
for damage, cuts or excessive wear.
Wheel alignment and balanceIf the vehicle
should pull to either side while driving on a
straight and level road, or if you detect uneven or
abnormal tire wear, there may be a need for wheel
alignment. If the steering wheel or seat vibrates at
normal highway speeds, wheel balancing may be
needed.
cFor additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the Warranty Information Booklet .WindshieldClean the windshield on a regular
basis. Check the windshield at least every six
months for cracks or other damage. Have a dam-
aged windshield repaired by a qualified repair
facility.
Windshield wiper blades*Check for cracks or
wear if they do not wipe properly.
Inside the vehicle
The maintenance items listed here should be
checked on a regular basis, such as when per-
forming periodic maintenance, cleaning the ve-
hicle, etc.
Additional information on the following
items with an “*” is found later in this sec-
tion.
Accelerator pedalCheck the pedal for smooth
operation and make sure the pedal does not bind
or require uneven effort. Keep the floor mat away
from the pedal.
Automatic transmission P (Park) position
mechanismCheck that the lock release button
on the shift selector lever operates properly and
smoothly. On a fairly steep hill check that your
vehicle is held securely with the selector lever in
the P (Park) position without applying any brakes.
Brake pedal and booster*Check the pedal for
smooth operation and make sure it has the properdistance under it when depressed fully. Check
the brake booster function. Be certain to keep the
floor mat away from the pedal.
BrakesCheck that the brakes do not pull the
vehicle to one side when applied.
Clutch pedal*Make sure the pedal operates
smoothly and check that it has the proper free
travel.
Parking brake*Check that the pedal has the
proper travel and confirm that your vehicle is held
securely on a fairly steep hill with only the parking
brake applied.
SeatsCheck seat position controls such as seat
adjusters, seatback recliner, etc. to ensure they
operate smoothly and all latches lock securely in
every position. Check that the head restraints
move up and down smoothly and the locks (if so
equipped) hold securely in all latched positions.
Seat beltsCheck that all parts of the seat belt
system (for example, buckles, anchors, adjusters
and retractors) operate properly and smoothly,
and are installed securely. Check the belt web-
bing for cuts, fraying, wear or damage.
Steering wheelCheck for changes in the steer-
ing system, such as excessive freeplay, hard
steering or strange noises.
Maintenance and do-it-yourself8-3
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

If you have a flat tire, see the “In case of
emergency” section of this manual.
TIRE PRESSURE
Tire inflation pressure
Check the tire pressures (including the spare)
often and always prior to long distance trips. The
recommended tire pressure specifications are
shown on the Tire and Loading Information label
(this label is also known as the tire placard) under
the9Recommended Cold Tire Inflation Pressure9
heading. The Tire and Loading Information label
is affixed to the driver side center pillar. Tire
pressures should be checked regularly because:
cMost tires naturally lose air over time.
cTires 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.
Incorrect tire pressure, including under in-
flation, may adversely affect tire life and
vehicle handling.
WARNING
cImproperly inflated tires can fail sud-
denly and cause an accident.
cThe vehicle weight capacity is indicated
on the Tire and Loading Information
label. Do not load your vehicle beyond
this capacity. Overloading your vehicle
may result in reduced tire life, unsafe
operating conditions due to premature
tire failure, or unfavorable handling
characteristics and could also lead to a
serious accident. Loading beyond the
specified capacity may also result in
failure of other vehicle components.
cBefore 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.
c
Do not drive your vehicle over 85 MPH
(137 km/h) unless it is equipped with high
speed rated tires. Driving faster than 85
MPH (137 km/h) may result in tire failure,
loss of control and possible injury.
cFor additional information regarding
tires, refer to “Important Tire Safety In-
formation” (US) or “Tire Safety Informa-
tion” (Canada) in the Warranty Informa-
tion Booklet.
License plate light
WDI0301
WHEELS AND TIRES
8-36Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

Tire and loading information label (for
US)
s1Seating capacity: The maximum number of
occupants that should be seated in the ve-
hicle.
s2Vehicle load limit: See loading information in
the Technical and consumer information
section.
s3Original tire size: The size of the tires origi-
nally installed on the vehicle at the factory.
s4Recommended cold tire inflation pressure:
Inflate the tires to this pressure when the
tires are cold. 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. The recommended
cold tire inflation is set by the manufacturer
to provide the best tire wear and vehicle
handling characteristics based on the ve-
hicles GVWR.
s5Tire size – refer to “Tire labeling” later in this
section.
s6ands7Spare tire size or compact spare tire
size (if so equipped) .
type a
LDI0392
Maintenance and do-it-yourself8-37
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

Tire and loading information label (for
US)
s1Original tire size: The size of the tires origi-
nally installed on the vehicle at the factory.
s2Recommended cold tire inflation pressure:
Inflate the tires to this pressure when the
tires are cold. 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. The recommended
cold tire inflation is set by the manufacturer
to provide the best tire wear and vehicle
handling characteristics based on the ve-
hicles GVWR.
s3Spare tire size or compact spare tire size (if
so equipped) .
type b
LDI0421
8-38Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

Checking tire pressure
1. Remove the valve stem cap from the tire.
2. Press the pressure gauge squarely onto the
valve stem. Do not press too hard or force
the valve stem sideways, or air will escape. If
the hissing of air escaping from the tire is
heard while checking the pressure, reposi-
tion the gauge to eliminate this leakage.
3. Remove the gauge.
4. Read the tire pressure on the gauge stem
and compare to the specification shown on
the Tire and Loading Information label.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, includ-
ing the spare.
Size Cold Tire Infla-
tion Pressure
Front
Original TireP225/70R15
P255/65R16
P265/70R15
P265/70R16
P265/65R17
P265/55R17210 kPa, 30 PSI
Rear
Original TireP225/70R15
P255/65R16
P265/70R15
P265/70R16
P265/65R17
P265/55R17210 kPa, 30 PSI
Spare Tire T135/90D16 420 kPa, 60 PSI
TIRE LABELING
Federal law requires tire manufacturers to place
standardized information 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.
LDI0393WDI0394
Maintenance and do-it-yourself8-39
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

(1) Tire size (example: P215/65R15 95H)
1. P: The9P9indicates the tire is designed for
passenger vehicles.
2. Three-digit number: This number gives the
width in millimeters of the tire from sidewall
edge to sidewall edge.
3. Two-digit number: This number, known as
the aspect ratio, gives the tire’s ratio of
height to width.
4. R: The9R9stands for radial.
5. Two-digit number: This number is the wheel
or rim diameter in inches.6. Two- or three-digit number: 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 be-
cause it is not required by law.
7. Tire speed rating. You should not drive the
vehicle faster than the tire speed rating.
WDI0395
8-40Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

(2) TIN (Tire Identification Number) for a new tire
(example: DOT XX XX XXX XXXX)
1. DOT: Abbreviation for the9Department Of
Transportation.9The symbol can be placed
above, below or to the left or right of Tire
Identification Number.
2. Two-digit code: Manufacturer’s identifica-
tion mark
3. Two-digit code: Tire size
4. Three-digit code: Tire type code (Optional)
5. Three-digit code: Date of Manufacture6. 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 material
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 pres-
sure that should be put in the tire. Do not exceed
the maximum permissible inflation pressure.(5) Maximum load rating
This number indicates the maximum load in kilo-
grams 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 requires an inner tube
(“tube type”) or not (“tubeless”) .
(7) The word ”radial”
The word9radial9is 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 white-
wall, bears white lettering or bears manufacturer,
brand, and/or model name molding that is higher
or deeper than the same molding on the other
sidewall of the tire, or (2) the outward facing
sidewall of an asymmetrical tire that has a par-
ticular side that must always face outward when
mounted on a vehicle.
WDI0396
Maintenance and do-it-yourself8-41
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

TYPES OF TIRES
WARNING
cWhen changing or replacing tires, be
sure all four tires are of the same type
(i.e., Summer, All Season or Snow) and
construction. A NISSAN dealer may be
able to help you with information about
tire type, size, speed rating and avail-
ability. Replacement tires may have a
lower speed rating than the factory
equipped tires, and may not match the
potential maximum vehicle speed.
Never exceed the maximum speed rat-
ing of the tire.
cFor additional information regarding
tires, refer to “Important Tire Safety In-
formation” (US) or “Tire Safety Informa-
tion” (Canada) in the Warranty Informa-
tion Booklet.
All season tires
NISSAN specifies All Season tires on some mod-
els to provide good performance all year, includ-
ing snowy and icy road conditions. All Season
tires are identified by ALL SEASON and/or M&S
on the tire sidewall. Snow tires have better snow
traction than All Season tires and may be more
appropriate in some areas.
Summer tires
NISSAN specifies summer tires on some models
to provide superior performance on dry roads.
Summer tire performance is substantially re-
duced in snow and ice. Summer tires do not have
the tire traction rating “M&S” on the tire sidewall.
If you plan to operate your vehicle in snowy or icy
conditions, NISSAN recommends the use of
SNOW tires or ALL SEASON tires on all four
wheels.
Snow tires
If snow tires are needed, it is necessary to select
tires equivalent in size and load rating to the
original equipment tires. If you do not, it can
adversely affect the safety and handling of your
vehicle.
Generally, snow tires have lower speed ratings
than factory equipped tires and may not match
the potential maximum vehicle speed. Never ex-
ceed the maximum speed rating of the tire.
If you install snow tires, they must be the same
size, brand, construction and tread pattern on all
four wheels.
For additional traction on icy roads, studded tires
may be used. However, some U.S. states and
Canadian provinces prohibit their use. Check
local, state and provincial laws before installingstudded tires. Skid and traction capabilities of
studded snow tires on wet or dry surfaces may be
poorer than that of non-studded snow tires.
TIRE CHAINS
Use of tire chains may be prohibited according to
location. Check the local laws before installing
tire chains. When installing tire chains, make sure
they are the proper size for the tires on your
vehicle and are installed according to the chain
manufacturer’s suggestions.Use only SAE
class “S” chains.Class9S9chains are used on
vehicles with restricted tire to vehicle clearance.
Vehicles that can use Class “S” chains are de-
signed to meet the minimum clearances between
the tire and the closest vehicle suspension or
body component required to accommodate the
use of a winter traction device (tire chains or
cables) . The minimum clearances are determined
using the factory equipped tire size. Other types
may damage your vehicle. Use chain tensioners
when recommended by the tire chain manufac-
turer to ensure a tight fit. Loose end links of the
tire chain must be secured or removed to prevent
the possibility of whipping action damage to the
fenders or underbody. If possible, avoid fully load-
ing your vehicle when using tire chains. In addi-
tion, drive at a reduced speed. Otherwise, your
vehicle may be damaged and/or vehicle handling
and performance may be adversely affected.
8-42Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X