New for 2011
The Sierra Hybrid gets GM's OnStar 9.0 telematics system that GM says provides better voice recognition. GM also said they have worked to cut down on the amount of wind noise occupants hear.
See also:
What to Use
Refer to Recommended Fluids and Lubricants on page 11‑12 to determine what kind of lubricant to use. ...
Automatic Operation
AUTO (Automatic): When automatic operation is active, the system controls the inside temperature, the air delivery, and the fan speed.
Use the steps below to place the entire system in automatic mode ...
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 ...