Checking Coolant - Hummer 2003 H2 Owner's Manual

Checking Coolant

CAUTION:
Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
Never turn the surge tank pressure cap
--
little when the engine and radiator are hot.
The coolant surge tank is
located in the engine
compartment on the
passenger's side of the
vehicle. See "Engine
Compartment Overview"
in the Index for information
on location.
--
even a
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at the
FULL COLD mark.
If the LOW COOLANT LEVEL message comes on
and stays on, it means you're low on engine coolant.
See "Low Coolant" in the Index.
Adding Coolant
If you need more coolant, add the proper DEX
coolant mixture at the surge tank, but only when the
engine is cool.
CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Don't spill coolant on a hot engine.
When replacing the pressure cap, make sure it is
-
hand tight.
R
-
COOL
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