Chevrolet 2007 Equinox Owner's Manual page 363

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 may be lower. If the level is
lower, add more of the proper DEX-COOL
coolant mixture to the coolant surge tank until
the level reaches the COLD FILL line.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight.
6. After driving the vehicle, check the level in the
surge tank again when the cooling system
has cooled down.
If the coolant is not at the proper level, repeat
Steps 1 through 3 and reinstall the pressure cap.
If the coolant is not at the proper level when
the system cools down again, see your dealer.
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