GMC Chevrolet Tahoe 2011 Manual page 20

Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
5-8 Instruments and Controls
Engine Coolant
Temperature Gauge
United States
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Canada
This gauge shows the engine
coolant temperature.
It also provides an indicator of how
hard the vehicle is working. During a
majority of the operation, the gauge
reads 100°C (210°F) or less. If a
load is being pulled or going up
hills, it is normal for the temperature
to fluctuate and go over the 113°C
(235°F) mark. However, if the gauge
reaches the 125°C (260°F) mark, it
indicates that the cooling system is
working beyond its capacity.
Black plate (8,1)
Charging System Light
This 12 volt battery light comes on
briefly when the ignition is turned to
ON/RUN, but the engine is not
running, as a check to show it is
working.
It should go out once the engine
has been started. If it stays on,
or comes on while driving, there
could be a problem with the 12 volt
charging system. Have the vehicle
serviced by your dealer. A 12 volt
charging system Driver Information
Center (DIC) message may also
appear. See Driver Information
Center (DIC) on page 5 11 for more
information. This light could indicate
that there are electrical problems.