1997 Buick Riviera Owner's Manual - Page 218

~~ ~ Heater and radiator hoses, and other engine parts, can be very hot. Don't touch them. If you do, you can be burned. Don't run the engineif there is a leak. If you run the engine, it couldlose all coolant. That could cause an engine fire,and you could be burned. Get any leak fixed before-you drive thevehicle. The coolantlevel should be at or above FULL COLD. If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pump somewhere else in or the cooling system. NOTICE: Engine damage from running your engine without coolantisn't covered by your warranty. If there seems to be leak, with the engineon, check to no see if the electric engine fans are running.If the engine is overheating, bothfans should be running.If they aren't, your vehicle needs service. 5-17