GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 LeSabre 🢒 Body and Accessories 🢒 Entertainment 🢒 Digital Radio Antenna Replacement

Removal Procedure

    Object Number: 863301 Size: SH

    Notice: 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.

  1. Remove the upper rear quarter trim panel. Refer to Quarter Upper Trim Panel Replacement in Interior Trim.
  2. Remove the rear assist handles. Refer to Assist Handle Replacement in Interior Trim.

    3. Notice: Use care when removing and installing the headliner. If reusing the headliner lay the headliner down flat on a clean surface. Excessive bending will damage the headliner.

  3. Lower the rear of the headliner.
  4. Remove the antenna cable connection from above the AM/FM antennamodule.
  5. Remove the foam tape from the antenna cable connection.
  6. Disconnect the digital radio antenna connectors (1).
  7. Remove the antenna bolt (2) and expansion sleeve (3).

    8. Important: The retainer, located on the shaft of the radio antenna, was designed for assembly plant operations to retain the digital antenna to the roof before the bolt is installed. If the retainer on the radio antenna is broken or damaged during service of the antenna, the antenna will still operate as designed and should be reused.

  8. Squeeze the retainer (4), located on the shaft of the antenna near the base, with a pair of pliers.

    9. Object Number: 863299 Size: SH
  9. Remove the digital radio antenna.

Installation Procedure

    Object Number: 863299 Size: SH
  1. Position the digital radio antenna to the roof.

    2. Notice: Refer to Fastener Notice 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. Align the headliner to the roof panel.
  8. Install the rear assist handles. Refer to Assist Handle Replacement in Interior Trim.
  9. Install the upper rear quarter trim panel. Refer to Quarter Upper Trim Panel Replacement in Interior Trim.