First remove the sliding door garnish molding.
How to remove sliding door latch on chevy uplander.
Another common gm wiring problem a faulty door lock relay inside the body control module.
You ll need to remove screws that are by the door handle arm rest under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don t want to break them.
Hit the lock button and only hear a click but doors won t lock don t want to spend hundreds to fix gm s.
When i use the lock switches on the driver side and passenger side doors they do not unlock nor lock the sliding doors.
With the door panel off it is an easy thing to replace the handle just a couple screws are bolts to take lose also make sure you put the rods back just like you take them off may i suggest taking a picture if you can of the latch inside the door.
The key fob does not work on the sliding doors either.
First of you need to take the panel of the rear door from the inside then you can just grab the rod and pop it open.
There is a clip that you need to remove in order to slide that handle.
You ll need to lift the door panel upwards in order to get it off the window ledge.
The garnish moldings is the top part.
Sliding door locks 7 answers.