GM Service Manual Online
For 1990-2009 cars only

Cellular Telephone Module Replacement UV8 w/o UE1

Removal Procedure

  1. Remove the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.

  2. Object Number: 625727  Size: SH
  3. Remove the bay board fasteners (2).
  4. Pull the bay board (1) away from the body and place the bay board  (1) module side up in the rear compartment.
  5. Disconnect the electrical connection from the cellular telephone module.
  6. Remove the fasteners that retain the cellular phone module to the bay board.
  7. Remove the cellular phone module.

Installation Procedure

  1. Install the cellular phone module in the mounting brackets.
  2. Install the fasteners that retain the cellular phone module to the bay board.
  3. Install the electrical connection to the cellular telephone module.

  4. Object Number: 625727  Size: SH
  5. Position the bay board (1) to the studs on the body.
  6. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  7. Install the bay board fasteners (2).
  8. Tighten
    Tighten the fasteners (2) to 9 N·m(80 lb in).

  9. Install the rear compartment Trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.

Cellular Telephone Module Replacement w/UV8

Removal Procedure


    Object Number: 649411  Size: SH
  1. Remove the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.
  2. Disconnect the electrical connector from the cellular telephone module.
  3. Remove the four fasteners (3) retaining the cellular telephone module and bracket assembly (2) to the rear shelf trim panel (1).
  4. Remove the cellular telephone module and mounting bracket assembly (2) from the rear shelf trim panel.

  5. Object Number: 649480  Size: SH
  6. Release the cellular telephone module mounting bracket retaining tabs (2) and slide the cellular telephone module (3) out of the mounting bracket (1).

Installation Procedure


    Object Number: 649480  Size: SH
  1. Slide the cellular telephone module (3) into the mounting bracket (1), until an audible click is heard , indicating the cellular telephone module (3) is secured in the mounting bracket (2).

  2. Object Number: 649411  Size: SH
  3. Install the cellular telephone module and mounting bracket assembly (2) to the rear shelf trim panel (1).
  4. Install the cellular telephone module mounting bracket fasteners (3).
  5. Connect the electrical connector.
  6. Install the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.