traction control NISSAN XTERRA 2002 WD22 / 1.G Owners Manual

Page 250 of 263

tionally vented by opening the windows,
switching the fan control to high and
setting the temperature control to the
HOT position.
OTrailer towing requires more fuel than
normal circumstances.
OAvoid towing a trailer for your vehicle's
first 500 miles (805 km).
OHave your vehicle serviced more often
than at intervals specified in the recom-
mended Maintenance Schedule.
OWhen making a turn, your trailer wheels
will be closer to the inside of the turn than
your vehicle wheels. To compensate for
this, make a larger than normal turning
radius during the turn.
OCrosswinds and rough roads adversely
affect vehicle/trailer handling, possibly
causing vehicle sway. When being
passed by larger vehicles, be prepared
for possible changes in crosswinds that
could affect vehicle handling. If swaying
does occur, firmly grip the steering
wheel, steer straight ahead, and immedi-
ately (but gradually) reduce vehicle
speed. This combination helps to stabi-
lize the vehicle. Never increase speed.OBe careful when passing other vehicles.
Passing while towing a trailer requires
considerably more distance than normal
passing. Remember the length of the
trailer must also pass the other vehicle
before you can safely change lanes.
OTo maintain engine braking efficiency
and electrical charging performance, do
not use fifth gear (manual transmission)
or overdrive (automatic transmission).
OAvoid holding the brake pedal down too
long or too frequently. This could cause
the brakes to overheat, resulting in re-
duced braking efficiency.
When towing a trailer, change oil in the
transmission more frequently. For addi-
tional information see the ``Maintenance
and do-it-yourself'' section earlier in this
manual.DOT (Department of Transportation) Quality
Grades: All passenger car tires must con-
form to Federal Safety Requirements in
addition to these grades.
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
Treadwear
Treadwear grade is a comparative rating
based on tire wear rate when tested under
controlled conditions on specified govern-
ment test courses. For example, a tire
graded 150 would wear one and a half
(1-1/2) times as well on the government
course as a tire graded 100. However, rela-
tive tire performance depends on actual
driving conditions, and may vary signifi-
cantly due to variations in driving habits,
service practices and differences in road
characteristics and climate.
Traction AA, A, B and C
The traction grades from highest to lowest
are AA, A, B, and C. Those grades repre-
sent the tire's ability to stop on wet pave-
UNIFORM TIRE QUALITY
GRADING
Technical and consumer information9-25
ZX

Page 251 of 263

ment as measured under controlled condi-
tions on specified government test surfaces
of asphalt and concrete. A tire marked C
may have poor traction performance.
WARNING
The traction grade assigned to your ve-
hicle tires is based on straight-ahead
braking traction tests, and does not in-
clude acceleration, cornering, hydro-
planing, or peak traction characteristics.
Temperature A, B and C
Temperature grades are A (the highest), B,
and C. They represent a tire's resistance to
heat build-up, and its ability to dissipate heat
when tested under controlled conditions on
a specified indoor laboratory test wheel.
Sustained high temperature can cause tire
material to degenerate, reducing tire life.
Excessive temperatures can lead to sudden
tire failure. Grade C corresponds to a per-
formance level which all passenger car tires
must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades A and B
represent higher levels of performance on
laboratory test wheels than the minimum
required by law.
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, under inflation, or excessive
loading, either separately or in combi-
nation, can cause heat build-up and
possible tire failure.Your NISSAN is covered by the following
emission warranties.
For US
1) Emission Defects Warranty
2) Emission Performance Warranty
Emission Control System Warranty
Details of these warranties may be found
with other vehicle warranties in your War-
ranty Information Booklet which comes with
your NISSAN. If you did not receive a
Warranty Information Booklet, or it becomes
lost, you may obtain a replacement by writ-
ing to:
ONissan North America, Inc.
Consumer Affairs Department
P.O. Box 191
Gardena, CA 90248-0191
EMISSION CONTROL
SYSTEM WARRANTY
9-26Technical and consumer information
ZX