GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 300373  Size: SH
  1. Open the liftgate window.
  2. Support the liftgate window.
  3. Remove the high mount stoplamp spoiler assembly. Refer to High Mount Stop Lamp Replacement in Lighting Systems.
  4. Disconnect the window defogger electrical connectors, if equipped.
  5. Remove the liftgate window struts. Refer to Liftgate Window Strut Replacement .
  6. Open the liftgate in order to expose the liftgate window hinges.
  7. Remove the liftgate window hinge pin retainers from the hinge pins.
  8. Discard the liftgate window hinge pin retainers.

  9. Remove the liftgate window hinge pins.
  10. With an assistant, remove the liftgate window from the liftgate.

Installation Procedure


    Object Number: 300373  Size: SH
  1. With an assistant, install the liftgate window to the liftgate.
  2. Install the liftgate window hinge pins.
  3. Install the new liftgate window hinge pin retainers.
  4. Install the liftgate window struts. Refer to Liftgate Window Strut Replacement .
  5. Connect the liftgate window defogger electrical connectors, if equipped.
  6. Install the high mount stoplamp spoiler assembly to the liftgate window. Refer to High Mount Stop Lamp Replacement in Lighting Systems.