Hummer H3. Manual — part 1203

REPAIR INSTRUCTIONS

ONSTAR BUTTON ASSEMBLY REPLACEMENT

2

2. Press the OnStar® Call Center

button.

3. Ask the OnStar® operator if your

voice can clearly be heard.

Does the OnStar® operator hear your
voice?

Go to Step 3

Go to OnStar

Microphone

Inoperative -

Caller Cannot

Be Heard

3

1. Press the Call Answer button.

2. Pronounce all hands-free commands.

Refer to OnStar Description and
Operation for proper pronunciation.

Did the OnStar® system recognize any of
the voice commands?

Go to Step 5

Go to Step 4

4

1. Press the Call Answer button.

2. Have another person pronounce all

hands-free commands. Refer to
OnStar Description and
Operation for proper pronunciation.

Did the OnStar® system recognize any of
the voice commands?

Go to Step 5

Go to OnStar

Description and

Operation

5

The system is operational, but cannot
identify certain word commands due to
pronunciation. For tips on proper
pronunciation refer to OnStar
Description and Operation.
Operate the system in order to verify the
repair.
Did you correct the condition?

System OK

Go to Step 2

2007 Hummer H3

2007 ACCESSORIES AND EQUIPMENT Cellular, Entertainment and Navigation - H3

Fig. 33: View Of OnStar Button Assembly
Courtesy of GENERAL MOTORS CORP.

The OnStar® button assembly located on the inside rearview mirror can not be serviced
separately. Should the button assembly need to be replaced, the entire inside rearview mirror
assembly will need to be replaced. Refer to Inside Rearview Mirror Replacement .

MOBILE TELEPHONE MICROPHONE REPLACEMENT

2007 Hummer H3

2007 ACCESSORIES AND EQUIPMENT Cellular, Entertainment and Navigation - H3

Fig. 34: Identifying OnStar Microphone
Courtesy of GENERAL MOTORS CORP.

Mobile Telephone Microphone Replacement

COMMUNICATION INTERFACE MODULE REPLACEMENT

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications.

1

Bezel, Mobile Telephone Microphone
Tip: Partially lower headliner to access microphone electrical connector.
Refer to Headlining Trim Panel Replacement .

2

Microphone Assembly, Mobile Telephone

2007 Hummer H3

2007 ACCESSORIES AND EQUIPMENT Cellular, Entertainment and Navigation - H3

Fig. 35: Identifying Communication Interface Module
Courtesy of GENERAL MOTORS CORP.

Communication Interface Module Replacement

COMPACT DISC CARE AND CLEANING

Care of CDs

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications.
Preliminary Procedure:
Remove the instrument panel center trim panel. Refer to Instrument Panel Center Trim
Panel Replacement (Left Hand Drive) or Instrument Panel Center Trim Panel
Replacement (Right Hand Drive) .

1

Communication Interface Module Guide Pin
Tip: Turn counterclockwise to remove from the module in order to release
the module from the bracket.

2

Communication Interface Module
Tip:

1. Disconnect the electrical connectors.

2. Tip the module towards the opening in the instrument panel to remove.

3. Reprogram the communications interface module if replacing the unit.

Refer to Control Module References .

2007 Hummer H3

2007 ACCESSORIES AND EQUIPMENT Cellular, Entertainment and Navigation - H3