Turn&-by&-Turn Navigation
1. Push 
to connect to a live Advisor.
2. Request directions.
3. Directions are downloaded to the vehicle.
4. Follow the voice-guided commands.
See also:
Safety
The National Highway Traffic Safety Administration gave the 2007 Yukon a
five-star frontal crash-test rating; it hasn't done a side-impact test as of
this writing. Rollover ratings were listed at ...
Retrieve My Number
1. Push . System responds:
“OnStar ready.” 2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.” ...
Setting the Tone (Bass/Midrange/Treble) (All Except AM-FM Radio and Radio
with CD)
BASS/MID/TREB (Bass, Midrange, or Treble): To adjust the bass, midrange, or treble:
1. Press the knob until the tone control tabs display.
2. Highlight the desired tone control tab by doing one of ...