Pontiac 2004 Grand Prix Owner's Manual page 314

If it isn't, you may have a leak at the pressure cap or
in the radiator hoses, heater hoses, radiator, water pump
or somewhere else in the cooling system.
{
CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Don't touch them.
If you do, you can be burned.
5-34
When the engine is cold,
the coolant level should be
at or above the COLD
mark on the coolant
recovery tank.
CAUTION: (Continued)
CAUTION: (Continued)
Don't run the engine if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
If there seems to be no leak, with the engine on, check
to see if the electric engine cooling fans are running.
If the engine is overheating, both fans should be
running. If they aren't, your vehicle needs service.
Notice: Engine damage from running your engine
without coolant isn't covered by your warranty.
See "Overheated Engine Protection Operating
Mode" in the Index for information on driving to
a safe place in an emergency.
Notice: When adding coolant, it is important that
you use only DEX-COOL
If coolant other than DEX-COOL
system, premature engine, heater core or radiator
corrosion may result. In addition, the engine coolant
will require change sooner — at 30,000 miles
(50 000 km) or 24 months, whichever occurs first.
Damage caused by the use of coolant other than
®
DEX-COOL is not covered by your new vehicle
warranty.
®
(silicate-free) coolant.
®
is added to the