Pontiac Montana SV6 2007 Owner's Manual page 123

If an object obstructs the power sliding door(s) while
it is closing, the door will automatically reverse to
the open position, provided it meets sufficient
resistance. Resistance must be as strong as the
force of the closing door, or stronger. The force of
the closing door increases significantly as the door
approaches the latched position.
The driver's side sliding door is designed to open
only a little if the fuel door is open. If this ever
happens, do not try to force the sliding door. When
the fuel filler door is closed, the driver's side sliding
door can be opened normally.
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.
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