Removal ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.

Remove the fill plug-(1).Installation Procedure

Clean the fill plug and apply adhesive GM-P/N-12345493 (Canadian-P/N-10953488) tothe threads.
Caution:Refer toFastener Caution.
Install the fill plug-(1) and tighten to 39-Y (29-lb-ft).Lower the vehicle.
Drain Plug Replacement Automatic Transmission Unit
Transmission Fluid Drain and Fill Automatic Transmission UnitLiftgate Hinge Replacement Panels
Liftgate Hinge ReplacementCalloutComponent NamePreliminary ProceduresRemove the liftgate. Refer toLiftgate Replacement.Lower the rear of the headliner to access the inner bolts.Refer toHeadlining Trim Panel Replacement.Use a grease pencil to mark the liftgate hinge position tothe body prior to remov ...