1998 GMC Savana Van Owner's Manual - Page 105

A CAUTION: It can be dan swing-out windowsor reardoor(s) open because carbon monoxide (CO) gas can come into your vehicle. You can't seeor smell CO. It can cause unconsciousness and even death. If you must drive with the rear swing-out windows or rear door(s) open or if electrical wiring or other cable connectionsmust pass through the seal between the body and the rear swing-out windowsor rear door(s): 0 Make sure all windows are shut. CAUTION: (Continued) ' CAUTION: (Continued: 0 - Thrn the fan on your heating or cooling system toits highest speed with setting the on VENT, HEAT, BLENDor DEF. Additionally, on vehicles with heatingair conditioning systems, NORM A/C or BI-LEVEL A/C can be used. That will force outside air into your vehicle. See "Comfort Controls" inthe Index. 0 If you have air outlets on or under the instrument panel, openthem all the way. See "EngineExhaust" in the Index. Horn Press the horn symbol in the middle of the steering wheel to sound the horn. 2-33