My tail gate will not open on my 2007 acadia - 2007 GMC Acadia SLE

Has to have it .
Liftgate Trim Panel Plug
Procedure
From inside the vehicle lower the second and third, if applicable, row seats.
Use a small flat-bladed tool to remove the access plug from the liftgate lower interior trim panel.
Push on a silver lever located on the right just through the access hole to unlock the liftgate.
Open the liftgate from the outside of the vehicle using the exterior handle.

Outlook Traverse Acadia Enclave Lift Gate Won Open

Check with a multi-meter that the switch itself has a open/closed function(ohm meter setting)Hope this helps....

i had a simular issue and it ended up being the power lock switch was stuck on my liftgate. also could be the linkage is jammed/bent or the little plastic keepers that hold it together came apart

check the door lock or sensor

2007 GMC Acadia manual liftgate will not open. Is there a way to bypass the electronic switch to get it open and replace the switch or latch?

Heres two wiring diagrams for the complete outside lighting,except the backup lights,this is for a 2007 GMC Acadia SLE, hope this helps. good luck.

need to unscrew the main latch and reset

There has been problems with that component,also Saturn Outlook ,has faulty gear, and will have to be calibrated and programmed to vehicle.ll

I believe there are one or more service bulletins out on the tail gate issue, so you are not alone. I have seen a vehicle with this issue. The bullitin states adjust latch/ do not replace. We tried to adjust 4 times and ended up installing a new latch to remedy.