GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1236080  Size: B2
  1. Remove the center high mount stoplamp (CHMSL) fasteners.
  2. Pull the CHMSL out of the liftgate.
  3. Disconnect the rear washer hose from the rear washer nozzle.
  4. Disconnect the electrical connector from the CHMSL assembly.
  5. Press the tabs on the CHMSL lens to separate the CHMSL bulb from the CHMSL lens.
  6. Pull the CHMSL bulb out of the assembly.
  7. Push the new bulb into the assembly until the bulb is installed.
  8. Align the tabs on the CHMSL lens with the CHMSL bulb assembly, and push to installed.
  9. Connect the electrical connector to the CHMSL assembly.
  10. Connect the rear washer hose to the rear washer nozzle.
  11. Align the CHMSL assembly with the liftgate.
  12. Install the CHMSL fasteners.

Rear License Plate Lamp Bulb Replacement


    Object Number: 1538629  Size: B3
  1. Remove fasteners that attach the rear license plate lamp assembly.
  2. Lower rear license plate lamp assembly from bezel.
  3. Rotate license plate lamp bulb socket assembly counterclockwise and remove it from housing.
  4. Pull license plate lamp bulb out of the bulb socket.
  5. Carefully press license plate lamp bulb into bulb socket until seated.
  6. Install license plate bulb socket assembly in license plate lens.
  7. Rotate license plate bulb socket assembly clockwise until it is seated.
  8. Align license plate lamp assembly with license plate lamp bezel.
  9. Install license plate lamp assembly tot he license plate bezel fasteners.