1997 Chevrolet Express Van Owner's Manual - Page 92

Rear Swing-Out Window To close the window, pull the latch toward you and push Your rear swing-out down on the latch to lock it. windows work the same way, but the latch is at the bottom edge of the window. It can be dangerous to drive with the rear swing-out windows or reardoor@)open because carbon monoxide (CO) gas can come into your vehicle. You can't see or smell CO. It can cause unconsciousness and even death. If you must drivewith the rear swing-out windows or reardoor(s) open or if electrical wiring or other cable connections must pass through the seal between the body and the rear swing-out windows or reardoor(s): 0 Make sure all windows are shut. Thrn the fan on your heating or cooling system to its highest speed with the setting on VENT, HEAT, BLEND or DEE Additionally, on vehicles with heatingair conditioning systems, NORM A/C or BI-LEV A/C can be used. That will force outside into your air vehicle. See "Comfort Controls'' in the Index. 0 If you have air outlets on or under the instrument panel, open them all the way. See "Engine Exhaust" in the Index. 2-31