Engine Coolant Temperature; Gauge - Cadillac XTS Owner's Manual

Here are four things that some owners
ask about. None of these show a
problem with the fuel gauge:
At the service station, the fuel
pump shuts off before the gauge
reads full.
It takes a little more or less fuel to
fill up than the gauge indicated.
For example, the gauge may have
indicated the tank was half full,
but it actually took a little more or
less than half the tank's capacity
to fill the tank.
The gauge moves a little while
turning a corner or speeding up.
The gauge takes a few seconds to
stabilize after the ignition is
turned on, and goes back to empty
when the ignition is turned off.
Engine Coolant
Temperature Gauge
Base Level
INSTRUMENTS AND CONTROLS
Uplevel Balanced Configuration
This gauge measures the engine
coolant temperature.
The warning area at the far end of the
gauge may appear shaded or may be
colored red.
If the pointer approaches the warning
area, or the shaded thermostat symbol
the engine may be too hot.
Under some driving conditions,
including those listed below, it is
normal for the temperature to rise
above the usual operating range and
approach the far end of the gauge:
Stop and go driving in heavy
traffic.
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