Pontiac Montana SV6 2008 Owner's Manual page 109

CAUTION:
{
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 3-23 or Dual Climate
Control System on page 3-26.
•
If you have air outlets on or under the
instrument panel, open them all the way.
See Engine Exhaust on page 2-42.
To close the liftgate, pull down on the handle, then firmly
shut the liftgate. Do not drive with the liftgate open, even
slightly.
2-23