Cooling System - Chevrolet TrailBlazer 2007 Owner's Manual

If you no longer have the overheat warning,
you can drive. Just to be safe, drive slower for
about 10 minutes. If the warning does not
come back on, you can drive normally.
If the warning continues and you have not
stopped, pull over, stop, and park your vehicle
right away.
If there is still no sign of steam, you can push
down the accelerator until the engine speed
is about twice as fast as normal idle speed for
at least three minutes while you are parked.
If you still have the warning, turn off the engine
and get everyone out of the vehicle until it
cools down.
You may decide not to lift the hood but to get
service help right away.
416

Cooling System

When you decide it is safe to lift the hood, here is
what you will see:
4.2L L6 Engine
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Engine Fan