Pontiac 2004 Montana Owner's Manual page 25

3. From behind the seat, pull the nylon strap, located
at the base of the seat, to release the rear latches
from the floor pins.
You can also lift the lever on the side of the seat to
release the rear latches from the floor pins.
Do not let go of the strap or lever until the seat is
folded all the way forward.
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