Pontiac 2006 Grand Prix - Manual (Page 341)

{ 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.
3. Remove the Series III V6 engine cover shield to
access the bleed valve.
3.1. Clean the area around the engine oil fill tube
and cap before removing. Twist the oil fill
tube, with cap attached, counterclockwise
and remove it.
3800 V6 Engine
5-35