Chevrolet Silverado 2015 Owner's Manual page 234

Once the number of songs has
exceeded approximately 8,000,
there is no support for accessing the
songs directly through voice
commands. There will still be
access to the media content by
using commands for playlists,
artists, and genres.
The access commands for playlists,
artists, and genres are prohibited
after the number of this type of
media exceeds 4,000.
The system will provide feedback
the first time voice recognition is
initiated if it has become apparent
that any of these limits are reached
during a device initializing process.
Voice Recognition for the
Phone
Call <contact name> : Initiate a
call to an entered contact. The
command may include location if
the contact has location numbers
stored.
Call <contact name> At Home,
At Work, On Mobile, or On
Other : Initiate a call to an entered
contact and location at home, at
work, on mobile device, or on
another phone.
Call <phone number> : Initiate a
call to a standard phone number
seven or 10 digits in length, and
also 911, 411, or 611.
Pair Phone : Begins the
Bluetooth pairing process. Follow
instructions on the radio display.
Infotainment System
Switch Phone : Select a different
phone for outgoing calls.
Voice Keypad : Begins a dialog
to enter special numbers like
international numbers. The numbers
can be entered in groups of digits
with each group of digits being
repeated back by the system. If the
group of digits is not correct, the
command Delete will remove the
last group of digits and allow them
to be re-entered. Once the entire
number has been entered, the
command Call will start dialing the
number.
Voice Mail : Initiate a call to voice
mail numbers.
Voice Recognition for OnStar
(If Equipped)
OnStar : Begin OnStar Voice
Recognition.
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