Pontiac 2009 Torrent Owner's Manual page 311

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
to the coolant surge tank until the level reaches
the COLD FILL line.
®
coolant mixture
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/retailer.
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.
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