Malfunction Indicator Lamp - Chevrolet IMPALA 2005 Owner's Manual

This gage shows the engine coolant temperature.
It also provides an indicator of how hard your vehicle is
working. During the majority of the operation, the
gage will read 210°F (100°C) or less.
If you are pulling a load or going up hills, it is normal
for the temperature to fluctuate and approach the
250°F (122°C) mark. When the gage reads greater than
250°F (122°C), the HOT COOLANT TEMP light will be
illuminated in the message center and a chime will sound
continuously. If the gage reaches the 260°F (125°C)
mark, it indicates that the cooling system is working
beyond its capacity.
See Engine Overheating on page 5-31.

Malfunction Indicator Lamp

Check Engine Light
United States
Your vehicle is equipped with a computer which
monitors operation of the fuel, ignition, and emission
control systems.
Canada
3-35