GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 DTS 🢒 Body Hardware and Trim 🢒 Interior Trim and Paneling 🢒 Cellular Communications/Digital Radio Antenna Replacement

Removal Procedure

    Object Number: 863301 Size: SH

    Caution: DO NOT apply paint or clear coat to the antenna. This will damage the function of the antenna, causing poor reception or loss of signal reception.

    Caution: Use care when removing or installing the headliner. Excessive bending will damage the headliner.

  1. Lower the headliner assembly. Do not remove from vehicle. Refer to Headlining Trim Panel Replacement.
  2. Remove the antenna cable connection from above the AM/FM antenna module.
  3. Remove the foam tape from the antenna cable connection.
  4. Disconnect the digital radio antenna connectors (1).
  5. Remove the antenna bolt (2) and expansion sleeve (3).

    6. Object Number: 1491976 Size: SH
  6. Remove the digital radio antenna.

Installation Procedure

    Object Number: 1491976 Size: SH
  1. Install the digital radio antenna to the roof.

    2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 863301 Size: SH
  2. Route the wiring pigtail to the side in the slot on the antenna shaft and install the antenna expansion sleeve (3) and bolt (2) to the antenna shaft.

    3. Tighten
    Tighten the bolt to 6 N·m (53 lb in).

  3. Connect the antenna connectors (1).
  4. Wrap the connectors (1) with foam tape.
  5. Install the antenna cable connection above the AM/FM antenna module.
  6. Install the antenna cable hold down clips.
  7. Install the headliner assembly. Refer to Headlining Trim Panel Replacement.