Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Remove the right rear seat cushion. Refer to SEAT CUSHION REPLACEMENT - REAR NO. 1 (TRAILBLAZER, ENVOY, BRAVADA) in Seats.
Remove the communication interface module. Refer to Communication Interface Module Replacement (TrailBlazer, Envoy, Bravada) or Communication Interface Module Replacement (TrailBlazer EXT, Envoy XL) in Interior Trim.
Using a flat bladed tool, release the retaining tab on the upper bracket.

Fig 1: View Of Retaining Tab On Upper Navigation Control Processor Bracket
Courtesy of GENERAL MOTORS CORP.
Slide the upper bracket inboard until the retaining tabs are released from the processor bracket.
Remove the upper bracket from the processor bracket.
Remove the nut that retains the processor bracket to the rear seat back stud.

Fig 2: Removing/Installing Processor Bracket Mounting Nut
Courtesy of GENERAL MOTORS CORP.
Remove the processor bracket from the vehicle.