GMC 2000 Safari Owner's Manual page 121

Overhead Console (Option)
The overhead console includes reading lamps, a
compartment for a garage door opener, trip computer,
a temperature and compass display and a storage
compartment for sunglasses.
The reading lamps, trip computer and temperature and
compass display will work when the ignition is in RUN,
ACCESSORY or when Retained Accessory Power
(RAP) is active. See "Retained Accessory Power"
in the Index.
2-46
Reading Lamps
The lamps can also be swiveled to point in the direction
you want.
Press the button near each
lamp to turn the reading
lamps on and off.