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 UnitEngine Block Assemble Engine Block
Apply sealant to all plugs-(1, 2, 3) prior toinstallation. Refer toAdhesives, Fluids, Lubricants, and Sealers.Install the drain plug, with sealant, in the waterpump.Caution:Refer toFastener Caution.Install the coolant jacket plugs, with sealant, and tightento35-Y(26-lb-ft).Install the rear oil passa ...