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 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.

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    Important information about this manual
    You will see various symbols in this manual. They are used in the following ways: This is used to indicate the presence of a hazard that could cause death or serious personal injury. To avoid or ...

    Tire equipment
    1. SUMMER tires have a tread designed to provide superior performance on dry pavement. However, the performance of these tires will be substantially reduced in snowy and icy conditions. If you o ...

    System operation
    The automatic drive positioner system will not work or will stop operating under the following conditions: • When the vehicle speed is above 4 MPH (7 km/h) (entry/exit function). • When the ...