Using the “Dial” or “Call” Command
1. Press and hold 
for two seconds.
2. Say “Dial” or “Call.” 3. Say the entire number without pausing, or say the name tag.
Once connected, the person called will be heard through the audio speakers.
See also:
Door Locks
There are several ways to lock and unlock the vehicle.
From outside, use the Remote Keyless Entry (RKE) transmitter or the key in the driver door.
From inside, use the power door locks or the manual ...
Responsive driving experience
The '07 Yukon and Yukon Denali are built on GM's new full-size SUV platform,
which incorporates features such as a new, fully boxed frame, coil-over-shock
front suspension and rack-and-pinion stee ...
Using the “Delete” Command
1. Press and hold for two seconds.
2. Say “Delete.” 3. Say the name tag you want to delete. ...