Chevrolet 2003 Venture Owner's Manual page 168

Notice: Loading cargo that weighs more than
150 Ibs. (68 kg) on the luggage carrier may damage
your vehicle.
When you carry cargo on the luggage carrier of a
proper size and weight, put it on the slats, as far forward
as you can.
I
nen siide the crossraii up ayairlsi ii~e
rear of the load, to help keep it from moving. You can
then tie
it
down.
-.
Don't exceed the maximum vehicle capacity when
loading your vehicle. For more information on vehicle
capacity and loading, see Loading
Your
Vehicle on
page 4-34.
To prevent damage or loss of cargo as you're driving,
check now and then to make sure the luggage
carrier and cargo are still securely fastened.
Turn the release knob counterclockwise to unlock the
crossrails. Slide the crossrails forward or back, as
needed, to accommodate loads of various sizes.
After repositioning the crossrails, be sure to tighten the
release knobs by turning them clockwise. This will
lock the crossrails in place.
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