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 UnitCrankshaft Rear Oil Seal and Housing Installation Engine Block Seals and Gaskets
Special ToolsEN-42183HandleEN-46109Guide Pin SetEN-47839Crankshaft Rear Oil Seal InstallationToolFor equivalent regional tools, refer toSpecial Tools.Install the 6-mm (0.236-in) guides fromtheEN-46109pin setinto the 2-crankshaft rear oil seal housingcorner bolt holes of the engine block.Install theE ...