Power Windows
Crew Cab Shown
If available, the power window switches are located on each door.
The driver door also has a switch for the passenger and rear windows.
Push the switch to lower the window. Pull the switch up to raise it.
For more information, see:
• Windows on page 2‑18.
• Power Windows on page 2‑18.
See also:
Lumbar Adjustment
Eight-Way Power Seat Shown, Four-Way Similar
A. Lumbar Switch
If available, press and hold the front or rear of the switch (A) to increase
or decrease lumbar support. Release the switch when the ...
Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance.
However, if a customer wishes to write or e-mail GMC, the letter should be addressed to:
United States
GMC Customer Assistance ...
Adjusting the Speakers (Balance/Fade)
BAL/FADE (Balance/Fade):
To adjust the balance or fade:
1. Press until the speaker control tabs display.
2. Continue pressing to highlight the tab, or press the softkey under the tab.
3. To adju ...