GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1256518  Size: SH
  1. Disconnect the negative battery cable.
  2. Pry off the center high mounted stop lamp (CHMSL).
  3. Disconnect the electrical connector.
  4. Remove the CHMSL bulb.

Installation Procedure


    Object Number: 1256518  Size: SH
  1. Install the replacement CHMSL bulb.
  2. Connect the electrical connector.
  3. Install the CHMSL.
  4. Connect the negative battery cable.