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GENERAL MOTORS, GM, the GM
Emblem, HUMMER, H3 and H3T
are trademarks of General Motors
Corporation.
This manual includes the latest
information at the time it was
printed. GM reserves the right to
make changes after that time
without further notice. For vehicles
rst sold in Canada, substitute
the name “General Motors of
Canada Limited” for HUMMER
wherever it appears in this manual.This manual describes features
that may or may not be on your
speci c vehicle.
Read this manual from beginning to
end to learn about the vehicle’s
features and controls. Pictures,
symbols, and words work together
to explain vehicle operation.
Keep this manual in the vehicle for
quick reference.
Canadian Owners
A French language copy of this
manual can be obtained from your
dealer/retailer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
helminc.com
Propriétaires Canadiens
On peut obtenir un exemplaire de
ce guide en français auprès de
concessionnaire ou à l’adresse
suivante:
Helm Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
helminc.com
Index
To quickly locate information about
the vehicle use the Index in the
back of the manual. It is an
alphabetical list of what is in the
manual and the page number where
it can be found.
ii Preface
Litho in U.S.A.
Part No. 15891522 A First Printing©2008 General Motors Corporation. All Rights Reserved.
Page 153 of 382

Engine Oil Life System
With the engine off, turn the key to
ON/RUN and then press the
reset stem until OIL LIFE RESET
appears — alternating between OIL
LIFE and RESET — on the DIC
display. The CHANGE OIL message
alerts you to change the oil on a
schedule consistent with your driving
conditions. Always reset the OIL
LIFE message after an oil change.
To reset the message, see
Engine Oil Life System on
page 5-15.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule in this manual. See
Engine Oil on page 5-13and
Scheduled Maintenance on page 6-4
for more information.
Language
This feature allows you to choose
the language in which the DIC
display shows information.To set your choice for this feature:
1. With the engine off, turn the
key to ON/RUN, but do not
start the engine.
2. Close all doors so the DOORS
message does not display in
the DIC.
3. Momentarily press and release
the reset stem until the current
language is displayed: English
(default), Spanish, or French.
4. To select a different language,
press and hold the reset stem
until the next language appears.
5. Repeat Step 4 until the desired
language is displayed. Once the
desired language is shown on
the DIC display, the language
is set.
6. To exit the language selection,
momentarily press and release
the reset stem. All DIC messages
will now display in the language
selected.
Automatic Door Locks
This feature allows you to program
the door locks to a preferred
setting.
To set your choice for this feature:
1. With the engine off, turn the
key to LOCK/OFF. Do not
remove the key from the ignition.
2. Press and hold the power
door lock button until the
DIC display shows the current
door lock mode.
3. To view the next available mode,
press and hold the reset stem
until the mode appears. Release
the reset stem and press and
hold again to view the next mode.
4. Once the desired mode is shown
on the DIC display, brie y press
the reset stem to set your
choice. The DIC display then
clears.
Instrument Panel 3-35
Page 169 of 382

player and the loading slot free of
foreign materials, liquids, and
debris.
If an error displays, see “CD
Messages” later in this section.
CD Messages
CHECK CD:If this message
displays and/or the CD comes out, it
could be for one of the following
reasons:
The CD player is very hot. When
the temperature returns to
normal, the CD should play.
The road is very rough. When
the road becomes smoother,
the CD should play.
The CD is dirty, scratched, wet,
or upside down.
The air is very humid. Wait about
an hour and try again.
The format of the CD might not
be compatible.
A problem may have occurred
while burning the CD.
The label could be caught in the
CD player.
If the CD is not playing correctly, for
any other reason, try a known
good CD.
If any error occurs repeatedly or if
an error cannot be corrected,
contact your dealer/retailer. If the
radio displays an error message,
write it down and provide it to your
dealer/retailer when reporting
the problem.
XM Radio Messages
XL (Explicit Language Channels):
These channels, or any others,
can be blocked by calling
1-800-852-XMXM (9696).
Updating:The encryption code in
the receiver is being updated,
and no action is required. This
process should take no longer than
30 seconds.No Signal:The system is
functioning correctly, but the vehicle
is in a location that is blocking
the XM signal. When the vehicle is
moved into an open area, the
signal should return.
Loading XM:The audio system is
acquiring and processing audio and
text data. No action is needed. This
message should disappear shortly.
CH Off Air:This channel is not
currently in service. Tune in
to another channel.
CH Unauth:This channel is
blocked or cannot be received with
your XM Subscription package.
CH Unavail:This previously
assigned channel is no longer
assigned. Tune to another station. If
this station was one of the presets,
choose another station for that
preset button.
No Info:No artist, song title,
category, or text information is
available at this time on this channel.
The system is working properly.
Instrument Panel 3-51