Hummer H2 2010, Owner'S Manual

Page: 412 / 552

Checking Coolant
The coolant surge tank is
located in the engine
compartment on the
passenger side of the
vehicle. See
Engine
Compartment Overview
on page 6
‑ 16 for more
information on location.
{
WARNING:
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
— even a
little — when the engine and radiator are hot.
The vehicle must be on a level surface. When the
engine is cold, the coolant level should be at the FULL
COLD mark.
6-32