GM Lumina/Silhouette/Transport APVs 1990-1999 Repair Guide
REMOVAL AND INSTALLATION
Open the liftgate and remove the speaker grilles.
Remove the liftgate trim finish panel as outlined earlier in this section.
Unfasten the bolts attaching the lock assembly to the inner door panel, then remove the lock assembly through the access hole.
Detach the electrical connector from the door ajar switch, then remove the lock assembly and switch.
Installation is the reverse of the removal procedure.