Jeep Liberty: Treadwear - Department Of Transportation Uniform Tire Quality Grades - If You Need Consumer Assistance - Jeep Liberty Owner's ManualJeep Liberty: 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 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.

    Department Of Transportation Uniform Tire Quality Grades
    the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire’s manufacturer in each category is shown on the sidewall of the tires on your vehicle. All p ...

    Traction Grades
    The Traction grades, from highest to lowest, are AA, A, B, and C. These grades represent the tire’s ability to stop on wet pavement, as measured under controlled conditions on specified govern ...

    See also:

    Position of the steering wheel for driving
    The steering wheel is moved to the last selected position when: the driver's door is closed. you insert the SmartKey into the ignition lock. or you press the Start/Stop button once on ve ...

    Inside tailgate release
    The inside tailgate release is designed to provide a way to open the tailgate in the case of a discharged battery. The tailgate release lever (see illustration) is mounted on the tailgate. You ...

    Engine oil
    To check and refill engine oil The engine oil used has a significant effect on the engine’s performance, service life and startability. Be sure to use oil of the recommended quality and appropr ...