Buick 2007 Terraza Owner's Manual page 117

CAUTION:
{
You or others could be injured if caught in
the path of the sliding door. Make sure the
door path is clear before closing the door.
CAUTION:
{
If your vehicle is facing downward on a
steep grade (15 percent or more), the door
may not stay open and could slam shut,
possibly injuring someone. To make sure
the door does not slam shut, turn on the
power sliding door feature. Then if the
door closes, it will close under the control
of the power door system.
117