Auto Fan Speed
This will allow you to select the automatic fan speed. It can be adjusted to run lower or higher than normal.
Press SELECT when Auto Fan Speed is highlighted to open the menu. Turn the Menu knob to highlight High, Medium, or Low.
Press SELECT to confirm the
selection. Press 
BACK to move to
the last menu.
See also:
Interactive Drive Control System
The vehicle may have the Interactive Drive Control System (IDCS). IDCS adapts to the driving style and preference of the driver within one of three driving modes:
Standard: Use for normal city and ...
Automatic Operation
AUTO (Automatic Fan): When AUTO is selected on
the fan control, the system automatically adjusts the fan
speed. If the OnStar® system is activated when this
position is selected, the fan speed ...
Finish Care
Occasional waxing or mild polishing of your
vehicle by hand may be necessary to remove
residue from the paint finish. You can get
GM-approved cleaning products from your dealer.
If your vehicle ha ...