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Page 125 of 416

HUMMER H3 2008  Owners Manual Your Responsibility
You may need to increase the volume of your radio
to hear the OnStar advisor. If the light next to the OnStar
buttons is red, this means that your system is not
functioning properl

Page 256 of 416

HUMMER H3 2008  Owners Manual Heavy-Duty Trailer Wiring Package
If your vehicle is equipped with a trailer towing package,
the rear bumper harness will have a seven-pin universal
heavy-duty trailer connector attached to a bracket

Page 258 of 416

HUMMER H3 2008  Owners Manual Trailer Brake Control Wiring Harness
The trailer brake control wiring harness is located
under the instrument panel to the right of the steering
column. The wires are taped to the harness that goes
to