Nissan Sentra manuals

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:

Operating range
The Intelligent Key functions can only be used when the Intelligent Key is within the specified operating range from the request switch 1. When the Intelligent Key battery is discharged or strong radio waves are present near the operating location, the Intelligent Key operating range becom ...

Throttle valve closed position learning
Description Throttle Valve Closed Position Learning is a function of ECM to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time the harness connector of the electric throttle control actuator or ECM is ...

Air conditioner operation (if so equipped)
Start the engine, turn the fan control dial to the desired position, and press the  button to activate the air conditioner. When the  air conditioner is on, cooling and dehumidifying functions are added to the heater operation. The air conditioner cooling function operates only whe ...

© 2014-2018 Copyright www.nisentra.com