Instruments and Controls 5-15
If the vehicle has a diesel engine,
see the Duramax diesel supplement
for more information.
If the vehicle is a hybrid, see the
hybrid 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 Driver Information
Center (DIC) on page 5‑32 for more
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 Driver Information Center (DIC)
on page 5‑32 for more information.
Tachometer
The tachometer displays the engine
speed in revolutions per minute
(rpm). For a description of how
Grade Braking affects vehicle
speed while the Tow/Haul Mode is
activated, see Tow/Haul Mode on
page 9‑46 for more information.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
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