Chevrolet 2005 Uplander Owner's Manual page 115

If the power sliding door has been manually locked, you
must unlock the PSD before it can be opened.
Notice: If you leave the power sliding door on when
you go through an automatic car wash, the door may
accidentally open. Be sure the power sliding door is
turned off when going through a car wash.
If the power sliding door(s) is open or in the process of
closing when you shift out of PARK (P), a chime will
sound. This is a warning that the sliding door(s) is not
completely closed. Also, the Driver Information
Center (DIC) will indicate if the door is open. See DIC
Warnings and Messages on page 3-53. Stop the vehicle
and close the door.
CAUTION:
{
If you shift the transaxle out of PARK (P) and
accelerate before the power sliding door
latches closed, the door may reverse to the
open position. A child or others could fall out
of the vehicle and be injured. Always make
sure the power sliding door is closed and
latched before you drive away.
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.
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