1998 Chevrolet Lumina Owner's Manual - Page 213
1998 Chevrolet Lumina Manual
Page 213 highlights
If Steam Is Coming From Your Engine Steam froman overheated engine can burn you hood. Stay away badly, even if you just open the if coming from the engine you see or hear steam from it. Just turn it off and get everyone away from thevehicle until it cools down. Wait until there is RO sign of steam or coolant beforeyou open thehood. If'you keep driving when your engine is overheated, ie the liquids in it can catch fr.You or others could be badly burned. Stop your engine if it overheats, and get out of the vehicle u t l the engine is cool. ni NOTICE: I your engine catches because you keep f fire driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. If your vehicle has the 3100 engine, see "Overheated Engine Protection Operating Mode" in theIndex. 5-15