Communication Interface Module Bracket Replacement Envoy, TrailBlazer

1. Remove the right rear seat cushion. Refer to Rear Seat Cushion Replacement .
2. Remove the communication interface module. Refer to Communication Interface Module Replacement .



3. Using a flat-bladed tool, release the retaining tab on the upper bracket.
4. Slide the upper bracket inboard until the retaining tabs are released from the processor bracket.
5. Remove the upper bracket from the processor bracket.



6. Remove the nut that retains the processor bracket to the rear seat back stud.
7. Remove the processor bracket from the vehicle.

1. Install the processor bracket to the rear seat studs.

Notice: Refer to Fastener Notice in the Preface section.

2. Install the nut to the rear seat back stud.

Tighten
Tighten the nut to 45 N·m (33 lb ft).




3. Position the upper bracket to the processor bracket.
4. Slide the upper bracket outboard until all the retaining tabs are seated to the processor bracket.
5. Install the communication interface module. Refer to Communication Interface Module Replacement .
6. Install the right rear seat cushion. Refer to Rear Seat Cushion Replacement .