Place a Call Using a Stored Number
1. Push 
. System responds:
“OnStar ready.”.
2. Say “Call <name tag>.” System responds: “OK, calling <name tag>.”
See also:
Home Page Features
Various functions are disabled when
the vehicle is moving.
Press the Now Playing screen
button to display the active source
page. The sources available are
AM, FM, XM (if equipped), CD,
USB ...
Checking Coolant
The vehicle must be on a level surface when checking
the coolant level.
The coolant level should be at or above the FULL
COLD mark when the engine is cold. The coolant level
should be above the ...
Reading Lamps
There are front and rear reading
lamps.
The front reading lamps are located
in the overhead console.
The rear reading lamps are located
in the headliner.
or
: Press to turn each lamp
...