Voice Recognition
The voice recognition system uses commands to control the system and dial phone numbers.
Noise: The system may not recognize voice commands if there is too much background noise.
When to Speak: A tone sounds to indicate that the system is ready for a voice command. Wait for the tone and then speak.
How to Speak: Speak clearly in a calm and natural voice.
See also:
Roadside Assistance Program
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance
program. See Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside
Assistance Program (M ...
Four-Wheel Drive
Transfer Case
When to Check Lubricant
Refer to Maintenance Schedule on page 11‑3 to determine when to check the lubricant.
How to Check Lubricant
Electric Shift Transfer Case
A. Fill Plug ...
Rear Window Wiper/Washer
The rear wiper controls are on the end of the windshield wiper lever.
ON: Press the upper portion of the button for continuous rear window wipes.
OFF: The rear wiper turns off when the button is r ...





