Pontiac Montana SV6 2007 Owner's Manual page 127

CAUTION:
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It can be dangerous to drive with the
liftgate open because carbon monoxide
(CO) gas can come into your vehicle. You
cannot see or smell CO. It can cause
unconsciousness and even death. If you
must drive with the liftgate open or if
electrical wiring or other cable
connections must pass through the seal
between the body and the liftgate:
•
Make sure all other windows are shut.
•
Turn the fan on your heating or
cooling system to its highest speed
and select the control setting that will
force outside air into your vehicle. See
Climate Control System on page 201
or Dual Climate Control System on
page 204.
•
If you have air outlets on or under the
instrument panel, open them all the
way. See Engine Exhaust on page 148.
To close the liftgate, pull down on the handle, then
firmly shut the liftgate. Do not drive with the
liftgate open, even slightly.
127