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.
See also:
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 ...
Indicators for maintenance
1. Service due indicator
This indicator appears when the customer set
distance comes for service due, for example, for
engine oil and oil filter. You can set or reset the
distance for service ...
Instrument panel
1. Headlight/fog light (if so equipped)
/turn signal switch; Manual
shift paddles (if so equipped)
2. Steering wheel switch for audio control
and Bluetooth Hands-Free Phone
System (if so e ...