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 UnitRear End Spoiler Replacement (Terrain) Spoilers/Aero
Rear End Spoiler ReplacementCalloutComponent NamePreliminary ProcedureOpen and support the liftgate.Remove the liftgate upper trim finish panel. Refer toLiftgate Upper Trim Finish Panel Replacement.1Rear End Spoiler Screw (Qty:-4)Caution:Refer toFastener Caution.Tighten4.5-Y(40-lb-in)2Rear End Spoil ...