Oldsmobile 1995 Cutlass Supreme Owner's Manual page 93

Rear Reading Lamps Mirrors
Adjust all the mirrors so you can. see clearly when you
are sitting in a comfortable driving position.
Inside Daymight Rearview Mirror
These lamps are ne,a each passenger door. They will go
on when you open the doors. When the doors are closed,
push the button to turn the lamp on and off.
To reduce glare from lamps behind you, move the lever
to the night position.
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