Temperature conditions also can affect towing.
For example, towing a heavy trailer in high outside
temperatures on graded roads can affect engine
performance and cause overheating. The trans-
mission high fluid temperature protection mode,
which helps reduce the chance of transmission
damage, could activate and automatically de-
crease engine power. Under some conditions,
engine and vehicle speed could be reduced. Plan
your trip carefully to account for trailer and vehicle
load, weather, and road conditions.
WARNING
Overheating can result in reduced engine
power and lower vehicle speed. Also,
when the high temperature mode oper-
ates, engine and vehicle speed may be
gradually reduced. On highways, the re-
duced speed may be lower than other traf-
fic which could increase the chance of a
collision. Be especially careful when driv-
ing. If the vehicle cannot maintain a safe
driving speed, pull to the side of the road
in a safe area and allow the engine to cool
or the transmission to return to normal
operation. See “If your vehicle overheats”
in the “In case of emergency” section of
this manual.
CAUTION
Vehicle damage resulting from improper
towing procedures is not covered by
NISSAN warranties.
Tongue load
Keep the tongue load between 10 - 15 percent of
the total trailer load or use the trailer tongue load
specified by the trailer manufacturer. The tongue
load must be within the maximum tongue load
limits shown in the following “Towing
Load/Specification” chart. If the tongue load be-
comes excessive, rearrange cargo to allow for
proper tongue load.
WTI0160
Technical and consumer information9-17
DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform to
federal safety requirements in addition to these
grades.
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one-half (1 1/2) times
as well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, however,
and may depart significantly from the norm 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 represent the
tire’s ability to stop on wet pavement as mea-
sured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
Temperature A, B and C
The temperature grades are A (the highest) , B,
and C, representing the tire’s resistance to the
generation of heat, and its ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the
tire to degenerate and reduce tire life, and exces-
sive temperature can lead to sudden tire failure.
The grade C corresponds to a level of perfor-
mance which all passenger car tires must meet
under the Federal Motor Safety Standard No.
109. Grades B and A represent higher levels of
performance on the laboratory test wheel than
the minimum required by law.
WARNING
The temperature grade for this tire is es-
tablished for a tire that is properly inflated
and not overloaded. Excessive speed,
under-inflation, or excessive loading, ei-
ther separately or in combination, can
cause heat build-up and possible tire
failure.
UNIFORM TIRE QUALITY GRADING
9-24Technical and consumer information
