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 Side Door Weatherstrip Replacement Panels
Rear Side Door Weatherstrip ReplacementCalloutComponent NamePreliminary ProceduresRemove the rear side door check link. Refer toFront Side Door Check Link Replacement.1Rear Side Door WeatherstripProcedureUse a suitable tool in the removal of the rear side doorweatherstrip retainers. ...