Hands-Free Calling
1. Push 
. System responds:
“OnStar ready.”.
2. Say “Dial.” System responds:
“Please say the name or number to call.”.
3. Say the entire number without pausing, including a “1” and the area code. System responds:
“OK calling.”
See also:
BATTERY VOLTS LOW
This message displays when the
electrical system is charging less
than 10 volts or the battery has
been drained.
If this message appears
immediately after starting the
engine, it is possibl ...
Hill Start Assist (HSA)
Non-hybrid vehicles with StabiliTrak have a Hill Start Assist (HSA) feature,
which may be useful when the vehicle is stopped on a grade. This feature is designed
to prevent the vehicle from rollin ...
High-Beam On Light
The high–beam on light comes on
when the high-beam headlamps are
in use.
See Headlamp High/Low-Beam
Changer for more
information. ...