Chevrolet 2003 Venture Owner's Manual page 129

If you have the dual sliding
doors, your vehicle has
these switches. The
left switch is for the driver's
side power sliding door
and the right switch is for
the passenger's side
sliding door. The power
sliding door and the power
sliding door override is
one switch.
Pressing the part of the switch(es) with the don't symbol
turns the power to the sliding door(s) off. When the
power sliding door(s) is off, you will not be able to open
the door(s) by using the power sliding door switch(es)
located on the overhead console switchbank, using
the switch in front of the driver's or the passenger's side
sliding door, or using the remote keyless entry
transmitter.
Notice:
When your vehicle goes through an
automatic car wash, be sure the power sliding door
is turned off. If it isn't, the power sliding door
may open accidentally.
This switch is in front
of the driver's or the
passenger's side
sliding door.
The power sliding door override switch(es) will also stop
the door(s) immediately, while the door(s) is opening
or closing, when the override switch(es) is turned on.
The power sliding door(s) will only open if the transaxle
is in PARK (P). The transaxle does not have to be in
PARK (P) to close the door(s).
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