It indicates the car speed.
See also:
Department Of Transportation Uniform TireQuality 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 show ...
Changing the battery
If required, replace the battery with a genuine spare part having the same specifications.
If a battery with different specifications is fitted, the service intervals given
in the “Service schedule ...
Speedometer
The speedometer A-fig. 31 - 32 shows the vehicle speed.
...