Pontiac 2003 Aztek Owner's Manual page 324

The coolant level should be at or above the FULL
COLD mark. I f 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.
Heater and radiator hoses, and other engine
parts, can be very hot. Don't touch them. If you
do, you can be burned.
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 ''Qverheated
Engine
Protection Operatina
Mode" in the Index for information
on
driving to
a
safe place in an emergency.
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