WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Cell Phone/GPS Antenna Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Clearance Lamp-LF
2	Roof Marker Lamp Harness
3	Clearance Lamp Connector-LF
4	Cell Phone/GPS Antenna
5	Roof Lamp-Center Front
6	Roof Lamp-Center Front
7	Splice S345
8	Roof Lamp-Center Front
9	Splice S303

Fig 2: Cellular Telephone Microphone Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ambient Air Temperature Assembly-Inside
2	Cellular Telephone Microphone
3	B Pillar-Left Side

Fig 3: OnStar Button Assembly Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	OnStar Button Assembly w/VCIM

Fig 4: Vehicle Communication Interface Module Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	I/P Harness
2	Vehicle Communication Interface Module
3	Vehicle Communication Interface Module-C3
4	Vehicle Communication Interface Module-C2
5	Vehicle Communication Interface Module-C1

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Cellular Communication Component Views

Use the Manual With the Right Hardware

When to See a Mechanic

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