1997 GMC Savana Van Owner's Manual - Page 206

Engine Overheating (Gasoline Engine) You will find a coolant temperature gage on your vehicle's instrument panel.If you have a diesel engine,you will also find a low coolant light onyour instrument panel. If your vehicle hasa diesel engine, see "Engine Overheating" in the Diesel Engine Supplement. Steam from an overheated engine can burn you badly, evenif you just open the hood. Stay away from the engine if you seeor hear steam coming from it. Just turn itoff and get everyone away from the vehicle until it cools down. Waituntil there is no sign steam or coolant before you of open the hood. If you keep driving when your engine is overheated, the liquids in it can catch fire. You or others could bebadly burned. Stop your engine if it overheats, and get out of the vehicle until the engine iscool. If Steam Is Coming From Your Engine I NOTICE: If your engine catches fire because you keep driving with no coolant,your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. 5-12