Chevrolet 2002 Impala Owner's Manual page 316

The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at the COLD
mark or a little higher. When your engine is warm, the
level should be up to the HOT mark or a little higher.
United States
If this LOW COOLANT LEVEL message comes on and
stays on, it means you're low on engine coolant.
Adding Coolant
If you need more coolant, add the proper DEX
coolant mixture at the coolant recovery tank, but be
careful not to spill it.
If the coolant recovery tank is completely empty, add
coolant to the radiator. See "Engine Overheating" in
the Index.
Turning the radiator pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. With the coolant recovery tank, you will
almost never have to add coolant at the radiator.
Never turn the radiator pressure cap
little
Canada
You can be burned if you spill coolant on hot
R
engine parts. Coolant contains ethylene glycol,
-
COOL
and it will burn if the engine parts are hot
enough. Don't spill coolant on a hot engine.
Occasionally check the coolant level in the radiator.
For information on how to add coolant to the radiator,
see "Cooling System" in the Index.
CAUTION:
--
when the engine and radiator are hot.
CAUTION:
--
even a
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