Pontiac 2005 Montana Owner's Manual page 105

You can operate the power sliding door(s) with the
remote keyless entry transmitter only when the power
sliding door override switch(es) on the overhead console
is turned off. See Power Sliding Door (PSD) on
page 2-16 .
If your vehicle's fuel filler door is opened, the driver's
side power sliding door will not open completely.
Do not try to force the door. Once the fuel filler
door is closed, the driver's side sliding door can be
opened normally.
Matching Transmitter(s) to Your
Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can
be purchased through your dealer. Remember to bring
any remaining transmitters with you when you go to
your dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock
your vehicle. Each vehicle can have a maximum of
four transmitters matched to it.
See your dealer to match transmitters to
another vehicle.
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