Installation Procedure

Install the OnStar® bracket to the rear shelf.

Fig 1: View Of Vehicle Communication Interface Module
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Install the OnStar® bracket screw.
Tighten: Tighten the screw to 2.5 N.m (23 lb in).
Install the CIM in the bracket.
Install the rear shelf trim. Refer to Trim Panel Replacement - Rear Window Shelf (Late Production) in Interior Trim.