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If you no longer have the overheat
warning, you can drive. Just to
be safe, drive slower for about
10 minutes. If the warning does not
come back on, you can drive
normally.
If the warning continues and you
have not stopped, pull over, stop,
and park your vehicle right away.
If there is still no sign of steam, you
can idle the engine for three minutes
while you are parked. If you still have
the warning, turn off the engine and
get everyone out of the vehicle until it
cools down.
You may decide not to lift the hood
but to get service help right away.
Cooling System
When you decide it is safe to lift the hood, this is what you see:
A. Coolant Reservoir and Dipstick
B. Radiator Pressure Cap
V6 Engine
Vehicle Service and Care 9-17
2008 - Pontiac G8 Owner Manual