Chevrolet 2003 Venture Owner's Manual page 134

It can
-2
dangerous to drive with the liftgate
open because carbon monoxide (CO) gas can
come into your vehicle. You can't see or smell
CO. It can cause unconsciousness and even
I
death. If you must drive with the liftgate open
or if electrical wiring or other cable
i
connections must pass through the seal
I
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 "Comfort Controls"
in
the Index.
If
you have air outlets on or under the
instrument panel, open them all the way.
See "Engine Exnausi" in ihe
index.
I
I
To close the liftgate, pull down on the handle, then
firmly shut the liftgate. Don't drive with the liftgate open,
even slightly. See Engine Exhaust on page 2-42.
A message in your instrument panel cluster will warn
you if the liftgate is not completely closed. See
REJ Mfch Ajar
Waminyn Message
on paae
-
3-56.
2-23