1997 Buick LeSabre Owner's Manual - Page 200

Run your engine only as long as you must. This saves fuel. When you run the engine, makeit go alittle faster than just idle. That is, push the accelerator slightly. This uses less fuel forthe heat that you get and it keeps the Snow can trap exhaust gases under your vehicle. battery charged. You will need a well-charged battery to This can cause deadly CO (carbon monoxide) gas restart the vehicle, and possibly for signaling later on to get inside. CO could overcomeyou and kill with your headlamps. Let the heater run for awhile. it, you. You can't see it or smell so you might not Then, shut the engine off and close the window almost know it is in your vehicle. Clear away snow from all the way to preserve the heat. Start the engine again around the baseof your vehicle, especially any and repeat this only when you feel really uncomfortable that is blocking your exhaustpipe. And check from the cold. But do it as little as possible. Preserve the around again from time to time to be sure snow fuel as long as you can. To help keep warm, you can get out of the vehicle and do some fairly vigorous exercises doesn't collect there. every half hour or so until help comes. Open a window just a little on the sideof the vehicle that's away from thewind. This will help keep CO out. n 4-30