GMC 2010 Sierra 1500 Crew Cab Owner's Manual page 301

This feature allows you to select the language in which
the DIC messages will appear.
Press the customization button until the DISPLAY
LANGUAGE screen appears on the DIC display. Press
the set/reset button once to access the settings for this
feature. Then press the customization button to scroll
through the following settings:
All messages will appear in
English.
All messages will appear in French.
All messages will appear in Spanish.
No change will be made to this feature.
The current setting will remain.
To select a setting, press the set/reset button while the
desired setting is displayed on the DIC.
You can also change the language by pressing the trip
odometer reset stem. See Language under DIC
Operation and Displays (Without DIC Buttons) earlier in
this section for more information.
This feature allows you to select when the vehicle's
doors will automatically lock. See
information.
Press the customization button until AUTO DOOR
LOCK appears on the DIC display. Press the set/reset
button once to access the settings for this feature. Then
press the customization button to scroll through the
following settings:
automatically lock when the vehicle is shifted out of
P (Park).
when the vehicle speed is above 8 mph (13 km/h) for
three seconds.
No change will be made to this feature.
The current setting will remain.
To select a setting, press the set/reset button while the
desired setting is displayed on the DIC.
for more
The doors will
The doors will automatically lock
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