Pontiac 2002 Montana Owner's Manual page 137

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,
don't 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.
If you want to open the power sliding door(s) when
the override switch(es) is turned off, pull the inside or
outside handle and let go. The door will open fully.
To open the power sliding door(s) when the power
sliding door override switch(es) is on, pull the inside or
outside handle and slide the door all the way back.
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