GMC 2007 Envoy Denali Owner's Manual page 407

Checking Coolant
The vehicle must be on a level surface. When
your engine is cold, the coolant level should be
at FULL COLD, or a little higher.
The engine coolant
recovery tank is in the
engine compartment on
the passenger's side of
the vehicle. The cap has
this symbol on it. See
Engine Compartment
Overview on page 390
for more information on
location.
Adding Coolant
If you need more coolant, add the proper
®
DEX-COOL coolant mixture at the coolant
recovery tank.
CAUTION:
{
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 — even a
little — when the engine and radiator
are hot.
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