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If the vehicle has a diesel engine,
see the Duramax diesel supplement
for more information.
Speedometer
The speedometer shows the
vehicle speed in both kilometers
per hour (km/h) and miles per
hour (mph).
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
Engine Hour Meter Display
The Driver Information Center (DIC)
can also display the number of
hours the engine has run. To display
the engine hours, turn the ignition
off, then press and hold the reset
button for at least four seconds.
The hour meter displays for up to
30 seconds, or until the ignition is
turned on. See
information.
Trip Odometer
The trip odometer shows how far
the vehicle has been driven since
the trip odometer was last set
to zero.
Press the reset button, located on
the instrument panel cluster next
to the voltmeter, to toggle between
the trip odometer and the regular
odometer. Holding the reset button
for approximately one second while
the trip odometer is displayed will
reset it.
To display the odometer reading
with the ignition off, press the
reset button.
See
for more
Instruments and Controls
for more information.
Tachometer
The tachometer displays the
engine speed in revolutions per
minute (rpm).
If the engine is operated
with the tachometer in the high
end of the gauge, the vehicle
could be damaged. The damages
would not be covered by the
vehicle warranty. Do not operate
the engine in the solid red area.
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