Warning/indicator lights and audible reminders
Nissan Altima / Nissan Altima Owners Manual / Instruments and controls / Warning/indicator lights and audible reminders

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 on
...
Instrument brightness control
The instrument cluster illuminates when the ignition
switch is in the ON position.
The instrument brightness control operates when
the headlight control switch is in the
AUTO, or
position. ...
Selecting the correct oil
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance, see
“Capacities and recommended fuel/lubricants”
earlier ...
