Pontiac 2004 Bonneville - Manual (Page 167)

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
To prevent engine overheating, the air conditioning
compressor will turn off automatically just prior to the
gage pointer entering the shaded area.
As the engine cools down, the air conditioning
compressor will automatically turn back on. On vehicles
equipped with the DIC, the message ENGINE HOT... A/C
DISABLED will appear in the DIC display and a warning
chime will sound.
If the gage pointer moves into the shaded area, your
engine is too hot. On vehicles equipped with the
systems monitor, the CHECK GAGES light will come on
and a warning chime will sound.
On vehicles with a DIC, a CHECK GAGES
TEMPERATURE message will be displayed and a
warning chime will sound. See DIC Warnings and
Messages on page 3-61 for more information.
See Engine Overheating on page 5-29, for information
on what to do if your engine overheats.
United States Canada
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