Engine Overheating; If Steam Is Coming From Your Engine - Pontiac 2004 GTO Owner's Manual

Adding Coolant
If you need more coolant, add the proper DEX-COOL
coolant mixture at the surge tank, but only when the
engine is cool.
CAUTION:
{
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
When the level is correct, replace the cap and turn
clockwise until secure.
5-28

Engine Overheating

®
Immediate action is required if your engine overheats.
This is indicated by the coolant temperature gage
and the Engine Temp Hot message on the trip computer
display. Engine Coolant Temperature Gage on
page 3-28.

If Steam Is Coming From Your Engine