Chevrolet 2010 Colorado, Owner'S Manual

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Checking Coolant
The vehicle must be on a level surface when checking
the coolant level.
The coolant recovery tank
cap has this symbol on it.
It is located toward the rear of the engine compartment
on the passenger side of the vehicle. See
Engine
Compartment Overview on page 6 ‑ 12 for more
information on location.
Check to see if coolant is visible in the coolant recovery
tank. If the coolant inside the coolant recovery tank is
boiling, do not do anything else until it cools down.
If coolant is visible but the coolant level is not at or
above the FULL COLD mark, add a 50/50 mixture of
clean, drinkable water and DEX-COOL
®
coolant at the
coolant recovery tank, but be sure the cooling system is
cool before this is done.
The vehicle must be on a level surface. When the
engine is cold, the coolant level should be at FULL
COLD, or a little higher. When the engine is warm, the
level could be above the FULL COLD level.
When the engine is cold, the coolant level should be at
least up to the FULL COLD mark. If it is not, there could
be a leak in the cooling system.
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