Cruise set switch indicator light
Nissan Altima / Nissan Altima Owners Manual / Instruments and controls / Warning/indicator lights and audible reminders / Indicator lights / Cruise set switch indicator
light

The light comes on while the vehicle speed is controlled by the cruise control system. If the light blinks while the engine is running, it may indicate the cruise control system is not functioning properly. Have the system checked by a NISSAN dealer.
See also:
Brakes
If the brakes do not operate properly, have the
brakes checked by a NISSAN dealer. ...
Nissan vehicle immobilizer system
The NISSAN Vehicle Immobilizer system will not
allow the engine to start without the use of the
registered key.
If the engine fails to start using a registered key
(for example, when interferen ...
Battery replacement
CAUTION:
Be careful not to allow children to swallow
the battery or removed parts.
...
