1998 GMC Safari Owner's Manual - Page 209

0 Tie a red cloth your vehicle toalert police that to you've been stopped by the snow. Put on extra clothing or wrap a blanket around you. If you have noblankets or extra clothing, make body insulators from newspapers, burlap bags, rags, floor mats -- anything youcan wrap around yourself or tuck under your clothing keep warm. to 0 Snow can trap exhaust gasesunder your vehicle. This can cause deadly CO (carbon monoxide) gas to get inside.CO could overcome youand kill you. You can't see it orsmell it, so you might not know it is in your vehicle.Clear away snowfrom around the base of your vehicle, especially any that is blocking your exhaust pipe. And check around again from time to time to be sure snow doesn't collect there. Open a window just a little on the sideof the vehicle that's away from wind. This will help the keep CO out. Run your engine only as long as you must. This saves fuel. When you run the engine, makego a little faster it than just idle. Thatis, push the accelerator slightly. This uses lessfuel for the heat that you get and it keeps the battery charged. You will need a well-charged battery to restart the vehicle, and possibly signaling lateron for with your headlamps.Let the heater run for a while. You can run the engine to keep warm, but be careful. 4-25