Hummer H2. Manual — part 407

center (DIC) when the powertrain control module (PCM) detects a low engine oil level condition. The PCM
only monitors the oil level switch signal circuit for a brief period between key on and ignition crank. The IPC
receives a class 2 message from the PCM requesting illumination.

CHANGE ENGINE OIL

The instrument panel cluster (IPC) illuminates the CHANGE ENGINE OIL message when the powertrain
control module (PCM) determines that the engine oil should be changed. The IPC receives a class 2 message
from the PCM requesting illumination. Once the oil is changed, perform the engine oil monitor reset procedure
in order to clear the Change Engine Oil indicator. Refer to GM Oil Life System - Resetting in Maintenance
and Lubrication.

FUEL LEVEL LOW

The instrument panel cluster (IPC) illuminates the FUEL LEVEL LOW message in the driver information
center (DIC) and the LOW FUEL indicator when the IPC detects that the fuel level is less than a pre-determined
value. The IPC receives a class 2 message from the powertrain control module (PCM) indicating fuel level
percent.

ICE POSSIBLE

The instrument panel cluster (IPC) illuminates the ICE POSSIBLE message in the driver information center
(DIC) when the outside air temperature drops below 2.5°C (36.5°F). The IPC receives a class 2 message from
the body control module (BCM) indicating the outside air temperature.

OIL LIFE RESET

The instrument panel cluster (IPC) illuminates the OIL LIFE RESET message when the powertrain control
module (PCM) determines that the engine oil should be changed. The IPC receives a class 2 message from the
PCM indicating the remaining oil life percent. Once the oil is changed, perform the engine oil monitor reset
procedure in order to clear the Change Engine Oil indicator. Refer to GM Oil Life System - Resetting in
Maintenance and Lubrication.

OIL PRESSURE LOW

The instrument panel cluster (IPC) illuminates the OIL PRESSURE LOW message in the driver information
center (DIC) when the powertrain control module (PCM) detects a low oil pressure condition with the signal
circuit low. The IPC receives a class 2 message from the PCM requesting illumination.

OVERSPEED

The instrument panel cluster (IPC) illuminates the OVERSPEED indicator when the IPC detects that the vehicle
speed is more than 120 km/h (75 mph).

PROGRAM CLUSTER

The instrument panel cluster (IPC) illuminates the PROGRAM CLUSTER message in the driver information
center (DIC) when the IPC has not been programmed after an IPC replacement. Refer to Service Programming

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2

System (SPS) in Programming.

SERVICE TIRES SOON (Mideast export)

The instrument panel cluster (IPC) illuminates the SERVICE TIRE SOON message when the vehicle
communication interface module (VCIM) determines that the tires have to be changed. The IPC receives a class
2 message from the VCIM.

SERVICE VEHICLE SOON (Mideast export)

The instrument panel cluster (IPC) illuminates the SERVICE VEHICLE SOON message when the vehicle
communication interface module (VCIM) has to be replaced. The IPC receives a class 2 message from the
VCIM.

TIGHTEN FUEL CAP

The instrument panel cluster (IPC) illuminates the TIGHTEN FUEL CAP message in the driver information
center (DIC) when the powertrain control module (PCM) detects a low fuel pressure condition. The IPC
receives a class 2 message from the PCM requesting illumination.

TIRE SERVICE REQUIRED (Mideast export)

The instrument panel cluster (IPC) illuminates the Tire Service Required message one month after the Service
Tires Soon message is displayed. The powertrain control module (PCM) receives a class 2 message from the
IPC limiting the vehicle speed to 64.4 km/h (40 mph).

VEHICLE SPEED LIMITED

The instrument panel cluster (IPC) illuminates the VEHICLE SPEED LIMITED message in the driver
information center (DIC).

DRIVER INFORMATION CENTER (DIC) DESCRIPTION AND OPERATION

Driver Information Center (DIC)

The driver information center (DIC) consists of a single line 22 character vacuum fluorescent (VF) display
placed in the lower center area of the instrument panel cluster (IPC). The DIC will display vehicle information,
configuration, and warning parameters to the driver.

The display parameters are cycled, changed, and acknowledged using 4 DIC buttons.

z

Trip Information

Button representation icon appears as a road to the horizon.

z

Fuel Information

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2

Button representation icon appears as a gasoline pump.

z

Personalization

Button representation icon appears as a human next to vehicle.

z

Select

Button representation icon appears as an arrow.

DIC Displays

The DIC parameters are displayed by order of priority as follows (from highest to lowest) :

z

Service Diagnostics

z

Driver Identifier

z

Feature Programming

z

Driver Warnings

z

Vehicle Information

Vehicle Information

Vehicle information provides feedback to the driver on vehicle performance, mileage, maintenance, or related
information.

Vehicle information can only be displayed with the ignition switch in the RUN position.

When the English/Metric status changes, any applicable vehicle information data values will also change.

DIC Trip Information / Reset Capabilities

The available DIC Trip Information and reset capabilities are as follows:

z

Odometer - Cannot be reset

z

Personal Trip Odometer - Can be reset

z

Business Trip Odometer - Can be reset

z

Timer - Can be reset

z

Hourmeter - Cannot be reset

Trip Reset Stem

The trip reset stem on the IPC operates in the following manner with the ignition switch in the RUN position:

1. Each time the trip reset stem is pushed the display will cycle to the next trip parameter. The trip

parameters are as follows:

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2

z

Odometer

z

Personal Trip odometer

z

Business Trip odometer

z

Timer

z

Hourmeter

2. Holding the trip reset stem for greater than 1 second or depressing the SWC Select button while either

Personal Trip or Business Trip odometer is displayed will reset the displayed trip odometer and all other
corresponding trip parameters to 0.0 upon release of the stem. The trip odometer will remain displayed
after being reset.

3. If a trip information parameter is being displayed, pressing the DIC Trip Information button will display

the next trip information parameter.

4. If the next Trip Information parameter to be displayed is Timer, Hourmeter, or blank, pressing the reset

stem will return the display to the Odometer.

Odometer

The odometer is capable of displaying values from 0 - 999,999 mi or km.

If the ignition is in the OFF or UNLOCK/ACC position, the odometer can be displayed by pressing the trip
reset stem. The odometer will remain displayed for 5 seconds.

Trip Odometers

The DIC can display Personal Trip or Business Trip odometers.

The trip odometers are capable of displaying values from 0 - 999999.9 mi or km.

When the maximum value is reached, the trip odometer will roll over to 0.0.

Timer

The Timer is displayed as XX (hours) : XX (minutes) : XX (seconds).

The Timer is started and stopped using the DIC Select button.

Holding the Select button for longer than 1 second while the Timer parameter is displayed will reset the Timer
to 00:00:00.

The Timer status and data value is retained in memory when the ignition is turned OFF. When the ignition is
turned ON again, the Timer status and data value is resumed.

The Timer maximum value is 99:59:59. When the maximum is reached, the Timer rolls over to 00:00:00 and
continues to operate.

Fuel Information

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Instrument Panel, Gauges, and Console - Hummer H2