Hummer H2. Manual - part 408

DIC Fuel Information / Reset Capabilities

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

Range - Can not be reset

Avg. Fuel Economy - Can be reset

Inst. Fuel Economy - Can not be reset

Engine Oil Life - Can be reset

Range

The range display is the estimated distance that the vehicle can travel under current fuel economy and fuel level
conditions.

This range is calculated from odometer information and class 2 messages.

Fuel Range is capable of displaying values from 0-999 mi or km.

Display appears as: RANGE: XXX MILES (English), RANGE: XXX km (Metric).

If the range is less than 40 miles, RANGE: LOW will be displayed.

Average Fuel Economy

The Average Fuel Economy (AFE) value is calculated by the cluster based on Trip Distance and Trip Fuel
Used.

Pressing the Select button for longer than 1 second while the Average Fuel Economy is displayed in the DIC
will reset to 0.0.

Average Fuel Economy is capable of displaying values from 0.0-99.9.

Display appears as: AVG ECON XX.X (English) MPG, AVG ECON XX.X L/100km (Metric).

Trip Distance and Trip Fuel Used accumulated values are stored in memory when the ignition is turned OFF.

Instantaneous Fuel Economy

Instantaneous Fuel Economy values are calculated by the cluster from odometer information and class 2
messages.

The cluster calculates instantaneous fuel economy based on distance and fuel.

Instantaneous fuel economy is capable of displaying values from 0.0 - 99.9.

Display appears as INST ECON XX.X (English), INST ECON XX.X L/100km (Metric).

2004 Hummer H2

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

Values for the Instantaneous fuel economy are not stored when the ignition is turned OFF.

Engine Oil Life

Engine Oil Life percentage values are based on class 2 messages to the IPC. The IPC requests this value when
Engine Oil Life is selected on the DIC.

Engine Oil Life is capable of displaying values from 0-100 percent and the OIL LIFE RESET driver warning
will be displayed.

Pressing the Select button for longer than 5 seconds while Engine Oil Life is displayed on the DIC the value
will reset to 100 percent.

Display appears as ENGINE OIL LIFE: XXX%.

Feature Programming

Refer to Personalization Description and Operation in Personalization.

Driver Warnings

For the list of Driver Warnings, refer to Indicator/Warning Message Description and Operation .

AUDIBLE WARNINGS DESCRIPTION AND OPERATION

The audible warnings alert the driver of a system concern or a critical vehicle condition. The radio generates the
audible warnings through the left front speaker. The radio receives audible warning requests via the class 2
serial data line. If the radio receives multiple audible warning requests, the warning with the highest priority
sounds first. On vehicles with an audio amplifier, the amplifier instead of the radio generates the audible
warnings and receives audible warnings requests via the class 2 serial data line. Either the radio or the audio
amplifier is the chime producer. The following lists the audible warning priority and the pulse rate:

1. Fast rate chime (150 pulses per min)

2. Medium rate chime (100 pulses per min)

3. Slow rate chime (50 pulses per min)

4. Turn signal reminder (will pulse at turn signal flasher rate)

Door Ajar Warning

The chime producer activates the door ajar audible warning as requested by the instrument panel cluster (IPC).
The IPC sends a class 2 message to the chime producer indicating the chime duration, 4 pulses. The door ajar
warning sounds and the appropriate DOOR AJAR indicator illuminates in the driver information center (DIC)
when the following occurs:

The body control module (BCM) determines that a door; driver door, passenger door, left rear door, right
rear door, is open, signal is low. The IPC receives a class 2 message from the BCM indicating the door

2004 Hummer H2

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

ajar status.

The vehicle is not in PARK. The IPC receives a class 2 message from the powertrain control module
(PCM) indicating the gear position.

The vehicle speed is greater than 8.05 km/h (5 mph). The IPC uses the vehicle speed signal circuit, 4000
pulses/mile, from the PCM in order to calculate the vehicle speed.

Fasten Safety Belt Warning

The inflatable restraint sensing and diagnostic module (SDM) senses that the drivers seat belt is not buckled and
the signal is low. The SDM sends a class 2 message to the instrument panel cluster (IPC) requesting
illumination of the seat belt indicator. The SDM sends a class 2 message to the chime producer indicating a
chime at the rate of 50 pulses per minute, slow rate chime, for a duration of approximately 6 seconds. The
fasten safety belt warning sounds and the seat belt indicator illuminates when the following occurs:

Ignition switch transitions to ON.

The seat belt switch signal to the SDM is low.

If the seat belt is buckled when the ignition is turned ON, the chime will not sound. If the seat belt is buckled
while the chime is sounding, the chime stops.

Key-In-Ignition Warning

When the body control module (BCM) detects the key is in the ignition and the signal is low with the driver
door open, it activates an audible warning. The key-in-ignition chime sounds at the rate of 100 pulses per
minute, medium rate chime, until the driver door is closed or the key removed from the ignition switch. The
BCM activates the key-in-ignition warning when all of the following occurs:

The ignition switch is OFF.

The key-in-ignition switch signal is low.

The driver door jamb switch signal is low with the driver door open.

Lights On Chime

The body control module (BCM) will activate an audible warning as a reminder that the headlamps are left ON
when exiting the vehicle with the ignition switch in the OFF position. The lights ON warning sounds at the rate
of 150 pulses per minute, fast rate chime, until the headlamp switch is turned OFF. The BCM receives a signal
from the headlamp and panel dimmer switch via the headlamp relay. The BCM activates the lights on warning
chime when the following occurs:

The ignition is OFF.

The park lamp switch input is active.

The dimming potentiometer input is not in a maximum dimming state.

Turn Signal Warning

2004 Hummer H2

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

The body control module (BCM) activates an audible warning as a reminder that the turn signal has been on for
a distance of more than 1.20 km (0.75 mi). The BCM receives the vehicle speed and distance via the vehicle
speed signal circuit. The turn signal chime will use a tone that is synchronized with the turn signal flasher. The
BCM will activate the turn signal chime when the following occurs:

The ignition is ON.

Left or right turn signal switch is ON.

The vehicle has traveled further than 1.20 km (0.75 mi).

Park Brake Chime

The body control module (BCM) activates the park brake chime when the park brake is engaged and the signal
circuit is low and vehicle is driven for at least 3 seconds at a speed above 4.8 km/h (3 mph). The chime will
sound at the rate of 150 pulses per minute, fast rate chime. The park brake indicator will flash for any distance
the vehicle is driven every half second until the park brake is no longer engaged.

Additional Warnings

The following warnings have an associated instrument panel cluster (IPC) indicator or driver information center
(DIC) indicator:

Engine Overheated Stop Engine

The chime producer activates the audible warning as requested by the IPC. The IPC sends a class 2
message to the chime producer indicating the chime frequency and duration, continuous.

Ice Possible

The chime producer activates the audible warning as requested by the IPC. The IPC sends a class 2
message to the chime producer indicating the chime frequency and duration.

Liftgate Ajar/Rear Access Open

The chime producer activates the audible warning as requested by the IPC. The IPC sends a class 2
message to the chime producer indicating the chime frequency and duration, 4 pulses.

Low Fuel

The chime producer activates the audible warning as requested by the IPC. The IPC sends a class 2
message to the chime producer indicating the chime frequency, medium rate, and duration, 4 pulses.

Oil Pressure Low Stop Engine

The chime producer activates the audible warning as requested by the IPC. The IPC sends a class 2
message to the chime producer indicating the chime frequency and duration, continuous.

2004 Hummer H2

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

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