GMC 2009 Acadia - Manual (Page 167)

The oil pressure light should come
on briefly as the engine is started. If it
does not come on have the vehicle
serviced by your dealer/retailer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem.
Security Light
This light flashes when the security
system is activated.
For more information, see
Theft-Deterrent Systems on
page 2-16.
Fog Lamp Light
The fog lamp light comes on when
the fog lamps are in use.
The light goes out when the fog
lamps are turned off. See Fog
Lamps on page 3-13 for more
information.
Cruise Control Light
This light comes on whenever the
cruise control is set.
The light goes out when the cruise
control is turned off. See Cruise
Control on page 3-9 for more
information.
Instrument Panel 3-45