How To Check And Add Fluid; Cooling System - Chevrolet 2010 Colorado Owner's Manual

How to Check and Add Fluid

The proper fluid should be added if the level does not
reach the bottom of the diaphragm when it is in place in
the reservoir. See the instructions on the reservoir cap.

Cooling System

The cooling system allows the engine to maintain the
correct working temperature.
6-26
2.9L Engine shown (3.7L Engine similar)
A. Coolant Recovery Tank
B. Engine Cooling Fan
C. Radiator Pressure Cap