Air Vents
Use the slider switch in the center of the outlet, to change the direction of the airflow. Use the thumbwheel near the outlet to control the amount of airflow or to shut off the airflow.
Keep all outlets open whenever possible for best system performance.
Operation Tips
• Clear away any ice, snow, or leaves from the air inlets at the base of the windshield that can block the flow of air into the vehicle.
• Use of non-GM approved hood deflectors can adversely affect the performance of the system.
• Keep the path under all seats clear of objects to help circulate the air inside the vehicle more effectively.
• If fogging reoccurs while in vent or bi-level modes with mild temperature throughout the vehicle, turn on the air conditioner to reduce windshield fogging.
See also:
Engine Coolant Temperature Gauge
Metric
English
This gauge shows the engine coolant temperature.
It also provides an indicator of how hard the vehicle is working. During a majority of the operation, the gauge reads 100°C (210 ...
Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production
6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission
powertrain combination offered in the 2011 ...
Shifting Into Two-Wheel Drive High
Turn the knob to the Two-Wheel Drive High position. This can be done at any speed, except when shifting from Four-Wheel Drive Low.
See “Shifting Out of Four-Wheel Drive Low” for more information. ...