Chevrolet 2006 Monte Carlo Owner's Manual page 147

Engine Coolant Temperature
Warning Light
If this happens you should pull over and turn off the
engine as soon as possible. See Engine Overheating on
page 5-29 for more information.
Notice: Driving with the engine coolant temperature
warning light on could cause your vehicle to
overheat. See Engine Overheating on page 5-29.
Your vehicle could be damaged, and it might not be
covered by your warranty. Never drive with the
engine coolant temperature warning light on.
This light will also come on when starting your vehicle.
If it doesn't, have your vehicle serviced.
The engine coolant
temperature warning light
will come on when the
engine has overheated.
Engine Coolant Temperature Gage
United States
This gage shows the engine coolant temperature. If the
gage pointer moves towards the "H" (United States)
or the shaded in thermostat (Canada), it means that your
engine coolant has overheated. If you have been
operating your vehicle under normal driving conditions,
you should pull off the road, stop your vehicle and
turn off the engine as soon as possible.
See Engine Overheating on page 5-29 for more
information.
Canada
3-33