GMC 2009 Yukon XL Owner's Manual page 242

If your vehicle does not have DIC buttons, you can use
the trip odometer reset stem to view the following
displays: odometer, engine hours, trip odometer,
compass zone setting, compass recalibration, oil life,
Remote Keyless Entry (RKE) transmitter programming,
and display language.
If your vehicle has DIC buttons, you can use the trip
odometer reset stem to view the following displays:
odometer, engine hours, trip odometer, and display
language.
Trip Odometer Reset Stem Menu Items
Odometer
Press the trip odometer reset stem until ODOMETER
displays. This display shows the distance the vehicle
has been driven in either miles (mi) or kilometers (km).
Engine Hours
To display the ENGINE HOURS, place the ignition in
LOCK/OFF or ACC/ACCESSORY, then press and hold
the trip odometer reset stem for four seconds while
viewing the ODOMETER. This display shows the total
number of hours the engine has run.
3-58
Trip Odometer
Press the trip odometer reset stem until TRIP displays.
This display shows the current distance traveled in
either miles (mi) or kilometers (km) since the last reset
for the trip odometer.
The trip odometer can be reset to zero by pressing and
holding the trip odometer reset stem while the trip
odometer is displayed.
The trip odometer has a feature called the retro-active
reset. This can be used to set the trip odometer to
the number of miles (kilometers) driven since the ignition
was last turned on. This can be used if the trip
odometer is not reset at the beginning of the trip.
To use the retro-active reset feature, press and hold
the trip odometer reset stem for at least four seconds.
The trip odometer will display the number of miles (mi) or
kilometers (km) driven since the ignition was last turned
on and the vehicle was moving. Once the vehicle begins
moving, the trip odometer will accumulate mileage.
For example, if the vehicle was driven 5 miles (8 km)
before it is started again, and then the retro-active reset
feature is activated, the display will show 5 miles (8 km).
As the vehicle begins moving, the display will then
increase to 5.1 miles (8.2 km), 5.2 miles (8.4 km), etc.