WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Overhead Console

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Cellular Microphone
2	Noise Compensation Microphone (UQA w/Class 2 Amp)
3	Overhead Console

Fig 2: Antennas

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Cellular and Navigation Antenna
2	Cellular Antenna
3	Navigation Antenna
4	Front Roof Panel

Fig 3: Vehicle Communication Interface Module (VCIM) - Short Wheelbase (SWB)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Connectors
2	Body Harness
3	Rear Floor Panel
4	Vehicle Communication Interface Module (VCIM)

Fig 4: Vehicle Communication Interface Module (VCIM) - Long Wheelbase (LWB)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Vehicle Communication Interface Module (VCIM)
2	Rear Floor
3	Connectors

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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