Saturn 2009 Aura Green Line Hybrid, Owner'S Manual, Page: 283 / 408

3. Fill the coolant surge tank with the proper mixture,
to the FULL COLD mark. Wait about five minutes,
then check to see if the level is below the mark. If the
level is below the FULL COLD mark, add additional
coolant to bring the level up to the mark. Repeat this
procedure until the level remains constant at the
FULL COLD mark for at least five minutes.
4. With the coolant surge tank pressure cap off, start
the engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the engine
cooling fans.
By this time, the coolant level inside the coolant
surge tank might be lower. If the level is lower
than the FULL COLD mark, add more of the proper
mixture to the coolant surge tank until the level
reaches the FULL COLD mark.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.
Notice: If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
Pressure Cap
Notice: If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
See Engine Compartment Overview on page 5-12 for
more information on location.
Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
You will find an engine coolant temperature gage as
well as an engine coolant temperature warning light on
your vehicle’s instrument panel cluster. See Engine
Coolant Temperature Gage on page 3-36 and Engine
Coolant Temperature Warning Light on page 3-35.
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