Cellular Communication System: Removal & Installation Hummer H2 I

Removal Procedure

1. Lower the headliner. Refer to «Headliner Replacement»(ref-187215-S33015201702005083100000) in Interior Trim.
2. Disconnect the cables from the antenna.
3. Loosen the retaining nut till the antenna assembly can be pulled from the top of the roof.

Installation Procedure

1. Place the antenna assembly on the roof opening.
2. Tighten the retaining nut. Tighten: Tighten the nut to 6 N.m (53 lb in).
3. Connect the antenna cables
4. Install the headliner. Refer to «Headliner Replacement»(ref-187215-S33015201702005083100000) in Interior Trim.

1. Loosen and move rearward center console for access to center trim panel. Refer to «Console Replacement»(ref-187217-S27783040252005083100000) in Instrument Panel, Gages and Console.
2. Remove screws that hold communication interface module to instrument panel.
3. Remove screws that hold three button face plate from communication interface module.
4. Disconnect electrical connector to three button faceplate.

1. Install electrical connector from three button faceplate to communication interface module.
2. Tighten screws that hold three button faceplate to communication interface module. Tighten: Tighten screws to 2 N.m (18 lb in).
3. Install communication interface module to instrument panel. Refer to «Communication Interface Module Replacement»(ref-187205-S03328511702005083100000) in Instrument Panel, Gages and Console.
4. Install center bezel and move forward center console. Refer to «Console Replacement»(ref-187217-S27783040252005083100000) in Instrument Panel, Gages and Console.

1. Remove the I/P center trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Center»(ref-187217-S32969193842005083100000) in Instrument Panel, Gages, and Console.
2. Remove the screws that hold the communication interface module to the I/P.
3. Disconnect the antenna and the electrical connections from the communication interface module.
4. Remove the communication interface module.

1. When replacing a VCIM, record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM.
2. Connect the electrical and the antenna connections to the communication interface module.
3. Install the communication interface module screws. Tighten: Tighten the screws to 2 N.m (18 lb in).
4. Install the I/P center trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Center»(ref-187217-S32969193842005083100000) in Instrument Panel, Gages, and Console.
5. Reconfigure the OnStar® system. Refer to «OnStar Reconfiguration»(ref-187205-S06331352412005083100000) .

1. Twist and remove the OnStar microphone bezel from the headliner.
2. Disconnect the microphone connector from the jumper harness.

Installation Process

1. Connect the electrical connection to the OnStar microphone.
2. Mount the OnStar® microphone and bezel to the headliner.
3. Check OnStar® microphone for proper operation.