1996 Pontiac Sunfire Owner's Manual - Page 248

A CAUTION: Turning the surge tank pressure cap when the engine and radiator are hot can steam and allow scalding liquids to blow out and burnyou badly. Never turn the surge tank pressure capeven a little when the engine and radiator are hot. Adding Coolant If you need more coolant, add the proper mix at the surge tank, but only when the engine iscool. -- -- A CAUTION: You can be burned if you spillcoolantonhot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine. When replacing the pressure cap, make sure it istight. I When your engine is cold,the coolant level should be at the FULL COLD mark. If thislight comes on, it means you're low on engine coolant. See "Low Coolant Light" in the Index. 6-25