GMC 2008 Acadia - Manual (Page 149)

To tilt and telescope the steering wheel, pull down
the lever. Then move the steering wheel up or down
or backward or forward into a comfortable position.
Pull the lever up to lock the steering wheel in place.
Do not adjust the tilt and telescope lever while driving.
Power Tilt Wheel and Telescopic
Steering Column
If your vehicle has this
feature, the power tilt
wheel control is located
on the left side of the
steering column.
To operate the power tilt feature, push the control up
and the steering wheel will tilt up. Push the control
down and the steering wheel will go down.
Push the control forward and the steering wheel
moves toward the front of the vehicle. Push the control
rearward and the steering wheel moves toward the
rear of the vehicle.
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