1998 GMC Suburban Owner's Manual - Page 233

battery (or batteries) charged.You will need a well-charged battery (or batteries) to restart the vehicle, and possibly for signaling later on with your headlamps. Let the heater run for a while. Snow can trap exhaust gases under your vehicle. This can cause deadly (carbon monoxide) gas CO to get inside. CO could overcome and kill you you. You can't see it or smell it,so you might not know it is in your vehicle. Clear away snow from around the base your vehicle, especially any of 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 the sideof the on vehicle that's away from the wind. This help will keep CO out. If you have a diesel engine, you nlay have to run it at a higher speed to get enough heat. Then, shut the engine off and close the window almost all the way to preserve the heat. Start the engine again and repeat this only when you feel really uncomfortable from the cold. But do it as little as possible. Preserve the fuel a s long as you can. To help keep warm, you can get out of the vehicle and do some fairly vigorous exercises every half hour or so until help comes. Recreational Vehicle Towing There may be times when you want to tow your vehicle behind another vehicle for L I S at your destination. Be ~ sure to use the proper towing equipment designed for recreational vehicle towing. Follow the instructions for the towing equipment. Run your engine only as long as you must. This saves fuel. When you run the engine, make it go a little faster than just idle. That is,push the accelerator slightly. This uses less fuel for the heat that you get and it keeps the 4-41