GMC Sierra
Sierra is a 4-door, up to 6-passenger full size pickup.
See also:
Manual Operation
The air delivery mode or fan speed can be manually adjusted.
(Fan Control): Press to increase or decrease the fan speed.
Pressing or
while in automatic control places the fan speed under manual ...
Obstacle Detection Features
If the liftgate encounters an obstacle during a power open or close cycle, a
warning chime will sound and the liftgate will automatically reverse direction to
the full closed or open position. Aft ...
Control of a Vehicle
Braking, steering, and accelerating are important factors in helping to control a vehicle while driving. ...





