Automatic Operation
The system automatically controls the fan speed, air delivery, air conditioning, and recirculation to heat or cool the vehicle to the selected temperature.
When the AUTO indicator light is on, the system is in full automatic operation.
To place the system in automatic mode:
1. Press AUTO.
2. Set the temperature. Allow the system time to stabilize. Then adjust the temperature as needed.
To improve fuel efficiency and to cool the vehicle faster, recirculation may
be automatically selected in warm weather. The recirculation light will not come
on. Press the
to select recirculation;
press it again to select outside air.
See also:
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 ...
All-Wheel Drive
It is not necessary to check the all-wheel drive lubricant levels.
A fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to the dealer as soon as possible. ...
Turn and Lane-Change Signals
An arrow on the instrument panel cluster will flash in the direction of the turn
or lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow ...





