Pontiac 2006 Montana SV6, Owner'S Manual, Page: 385 / 454

Secondary Latch System
Your vehicle may have an underbody-mounted tire hoist
assembly equipped with a secondary latch system.
It is designed to stop a tire from suddenly falling off your
vehicle if the cable holding the spare tire is damaged.
For the secondary latch to work, the tire must be stowed
with the valve stem pointing down.
Your vehicle uses the underbody tire hoist assembly to
store either the compact spare or a flat road tire.
See Storing a Flat or Spare Tire and Tools on page 5-83
for instructions on storing the spare or flat tire correctly.
{
CAUTION:
Before beginning this procedure read all the
instructions. Failure to read and follow the
instructions could damage the hoist assembly
and you and others could get hurt. Read and
follow the instructions listed below.
{
CAUTION:
Someone standing too close during the
procedure could be injured by the jack.
If the spare tire does not slide off the jack
completely, make sure no one is behind you or
on either side of you as you pull the jack out
from the spare.
5-81