Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them.
To mute a call, press 
, and
then say “Mute Call.”.
To cancel mute, press , and
then say “Un-mute Call.”
See also:
Alarm Warning
Press the customization button until ALARM
WARNING: BOTH appears in the display. To
select your preference for alarm warning, press the
select button while ALARM WARNING: BOTH is
displayed on the ...
Footnotes — Maintenance Schedule Additional Required Services — Normal
a) Check all fuel and vapor lines and hoses for proper hook-up, routing, and
condition. Check that the purge valve, if the vehicle has one, works properly. Replace
as needed.
b) Or every four yea ...
Security
OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block,
and Roadside Assistance, if the vehicle is equipped with these services. OnStar
can unlock the vehicle doors remotel ...