Cooling System - GMC Hybrid 2006 Owner's Manual

Cooling System

Starter Generator Control Module
(SGCM) Cooling System
In addition to your vehicle's regular cooling system, your
vehicle is also equipped with a cooling system for the
SGCM system. This system is serviced differently than
the vehicle's main cooling system. The SGCM cooling
system includes the SGCM coolant surge tank, SGCM
surge tank pressure cap, SGCM cooling pump and the
Starter Generator Control Module (SGCM). The SGCM
cooling system uses the same type of coolant as the
vehicle's regular cooling system, but the two systems
operate separately and independently. See "Engine
Coolant" and "Cooling System" in the Index of the
owner's manual for more information.
When you decide it is safe to lift the hood, here is what
you will see:
A. SGCM Coolant Pressure Tank Cap.
B. Starter Generator Control Module (SGCM).
C. SGCM Cooling Hoses.
D. SGCM Coolant Surge Tank.
E. Engine Coolant Surge Tank and Pressure Cap.
F. SGCM Cooling Pump (Out of View).
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