2002 NISSAN XTERRA differential

OFailure to engage the transfer con-
trol lever in 2H, 4H, or 4L could result
in the vehicle moving unexpectedly,
resulting in serious personal injury
or property damage.
2HÐ (2WD, high range) Only the rear
wheels are driven. Use for driving under the
same conditions as standard 2WD vehicles
or state dynamometer I/M testing.
4HÐ (4WD, high range) Four wheels are
driven. Use when driving on roads where it
is difficult to drive in the 2H position (i.e.,
driving at normal speeds on snow covered,
icy, wet, muddy or sandy roads).
4LÐ (4WD, low range) Four wheels are
driven. Use when climbing or descending
steep hills, or during hard driving in sand,
mud or deep snow. The 4L position provides
maximum power and traction. Avoid raising
vehicle speed excessively, as the maximum
speed is approximately 30 MPH (48 km/h).
NÐ No wheels are driven. Always keep the
transfer lever out of the N (Neutral) position.
Shift the lever quickly and smoothly when
moving across the N (Neutral) position with
the vehicle stopped.
AUTO-LOCK FREE-
RUNNING HUBS
Your NISSAN is equipped with auto-lock
free-running hubs.
The auto-lock free-running hub is designed
to allow for automatic four-wheel drive en-
gagement when the shift lever is moved to
the 4H or 4L position. Follow these opera-
tional cautions:
CAUTION
OThe auto-locking hubs will make aclicking noise when engaging and
disengaging. This is normal.
OAccelerating quickly from a stop af-
ter shifting from two-wheel drive to
four-wheel drive may not allow en-
gagement of the auto-locking free-
running hubs and may cause a clat-
tering noise. Continued use of the
vehicle with this noise may damage
the hub lock. In such a case, release
the accelerator pedal to reduce the
engine speed or stop the vehicle.
OIf the auto-locking hubs make a clat-
tering noise after shifting from four-
wheel drive to two-wheel drive, stop
and move the vehicle in reverse
gear, in a straight line, about 7 to 10
feet (2 to 3 m).
OUnder extremely cold conditions
[below 5ÉF (-15ÉC)], the front axle
shafts may rotate even with the
transfer lever in the 2H position. If
this occurs, the auto-locking hubs
may make a clattering noise. To
avoid this, drive first in four-wheel
drive to warm up the vehicle and
differential gear oil. Then, shift to
two-wheel drive.
SD0021
Starting and driving5-19
ZX

ONever jack up the vehicle more than
necessary.
ONever use blocks on or under the
jack.
ONever use the tool tray as a jacking
surface.
ODo not allow passengers to stay in
the vehicle while it is on the jack.
ODo not start or run engine while
vehicle is on the jack. It may cause
the vehicle to move. This is espe-
cially true for vehicles with limited
slip differential carriers.
WARNING
OIncorrect wheel nuts or improperly
tightened wheel nuts can cause the
wheel to become loose or come off.
This could cause an accident.
ODo not use oil or grease on the wheel
studs or nuts. This could cause the
nuts to become loose.
Installing the spare tire
1. Clean any mud or dirt from the surface
between the wheel and hub.
2. Carefully put the spare tire on and tighten
the wheel nuts finger tight.
3. With the wheel nut wrench, tighten the
wheel nuts alternately and evenly until
they are tight.
4. Lower the vehicle slowly until the tire
touches the ground. Then, with the wheel
nut wrench, tighten the wheel nuts se-
curely in the sequence as illustrated.
Lower the vehicle completely.
As soon as possible, tighten the wheel
nuts to the specified torque with a torque
wrench.
Wheel nut tightening torque:
98 ft-lb (133 Nzm)
The wheel nuts must be kept tightened to
specification at all times. It is recom-
mended that wheel nuts be tightened to
specification at each lubrication interval.
Adjust tire pressure to the COLD pres-
sure.
WCE0015
In case of emergency6-7
ZX

OThe use of retread tires is not recom-
mended.
OFor additional information regarding
tires, refer to ``Important Tire Safety
Information'' in the Warranty Infor-
mation Booklet (US) or ``Tire Safety
Information'' in the Warranty and
Roadside Assistance information
booklet (Canada).Four-wheel drive models
CAUTION
Always use tires of the same type, size,
brand, construction (bias, bias-belted
or radial), and tread pattern on all four
wheels. Failure to do so may result in a
circumference difference between tires
on the front and rear axles which will
cause excessive tire wear and may
damage the transmission, transfer
case and differential gears.
If excessive tire wear is found, it is recom-
mended that all four tires be replaced with
tires of the same size, brand, construction
and tread pattern. The tire pressure and
wheel alignment should also be checked
and corrected as necessary. Contact an
authorized NISSAN dealer.
Wheel balance
Unbalanced wheels may affect vehicle han-
dling and tire life. Even with regular use,
wheels can get out of balance. Therefore,
they should be balanced as required.
Wheel balance service should be performed
with the wheels off the vehicle. Spin balanc-ing the front wheels on the vehicle could
lead to transmission damage.
OFor additional information regarding tires,
refer to ``Important Tire Safety Informa-
tion'' in the Warranty Information Booklet
(US) or ``Tire Safety Information'' in the
Warranty and Roadside Assistance infor-
mation booklet (Canada).
Care of wheels
OWash the wheels when washing the ve-
hicle to maintain their appearance.
OClean the inner side of the wheels when
the wheel is changed or the underside of
the vehicle is washed.
ODo not use abrasive cleaners when
washing the wheels.
OInspect wheel rims regularly for dents or
corrosion. This may cause loss of pres-
sure or damage the tire bead.
ONISSAN recommends waxing the road
wheels to protect against road salt in
areas where it is used during winter.
Maintenance and do-it-yourself
8-41
ZX

O80W-90 for the differential and 75W-90
for the transfer case are preferable for
ambient temperatures below 104ÉF
(40ÉC).
AIR CONDITIONER SYSTEM
REFRIGERANT AND LUBRICANT
RECOMMENDATIONS
The air conditioner system in this NIS-
SAN vehicle must be charged with the
refrigerant HFC-134a (R-134a) and the
lubricant, NISSAN A/C system lubricant
Type R or the exact equivalents.
CAUTION
The use of any other refrigerant or
lubricant will cause severe damage to
the air conditioning system and will
require the replacement of all air con-
ditioner system components.
The refrigerant HFC-134a (R-134a) in your
NISSAN vehicle does not harm the earth's
ozone layer. Although this refrigerant does
not affect the earth's atmosphere, certain
government regulations require the recov-
ery and recycling of any refrigerant during
automotive air conditioner system service.
An authorized NISSAN dealer has the
trained technicians and equipment needed
to recover and recycle your air conditioner
system refrigerant.Contact an authorized NISSAN dealer when
servicing your air conditioner system.
ATI0510
9-8Technical and consumer information
ZX