See also:

Department Of Transportation Uniform Tire Quality Grades
The following tire grading categories were established by the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire’s manufacturer in each category is ...

Memo
To switch to the voice recorder mode, say “Memo”. In this mode, you may say the following commands: • “New Memo” (to record a new memo) — During the recording, you may press the Voic ...

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 woul ...