Nissan Sentra Owners Manual: Uniform tire quality grading
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 government 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 measured under controlled conditions on specified government test surfaces of asphalt and concrete.
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 excessive temperature can lead to sudden tire failure.
The grade C corresponds to a level of performance 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 established for a tire that is properly inflated and not overloaded. Excessive speed, under-inflation, or excessive loading, either separately or in combination, can cause heat build-up and possible tire failure. |
Towing a trailer
Do not tow a trailer with your vehicle.
Flat towing
Towing your vehicle with all four wheels on the
ground is sometimes called flat towing. This
method is sometimes used when towing a vehicle
beh ...
Emission control system warranty
Your NISSAN vehicle is covered by the following
emission warranties:
For USA
Emission Defects Warranty
Emissions Performance Warranty
Details of this warranty may be found with other
vehic ...
Other materials:
Compressor
Exploded view
With air conditioning
Compressor
Front
Without air conditioning
A/c idler pulley
A/c idler pulley bracket
Compressor
Compressor : removal and installation
REMOVAL
Discharge the refrigerant. Refer to ha-23, "recycle refrigerant".
Remove the fr ...
Pregnant women
NISSAN recommends that pregnant women use
seat belts. The seat belt should be worn snug and
always position the lap belt as low as possible
around the hips, not the waist. Place the shoulder
belt over your shoulder and across your chest.
Never run the lap/shoulder belt over your abdominal
ar ...
Precaution
Precaution for supplemental restraint system (srs) "air bag" and "seat
belt pre-tensioner"
The supplemental restraint system such as “air bag” and “seat belt pre-tensioner”,
used along
with a front seat belt, helps to reduce the risk or severity of injur ...
