GMC 2007 Sierra - Manual (Page 263)

Security Light
This light flashes when
the vehicle security
system is activated.
Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is
turned off. See Cruise Control on page 217
for more information.
Highbeam On Light
This light comes on
when the high-beam
headlamps are in use.
See Headlamp High/Low-Beam Changer on
page 215.
Four-Wheel-Drive Light
The four-wheel-drive
light comes on when
you shift a manual
transfer case into
four-wheel drive and the
front axle engages.
Some delay between the shifting and the light
coming on is normal.
See Four-Wheel Drive on page 153 for more
information.
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