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 UnitCylinder Head Assemble (LAF, LEA, or LUK) Engine Block Cylinder Head
Special ToolsEN-8062Valve Spring CompressorEN-9666Valve Spring TesterEN-43963Valve Spring Compressor (off car)For equivalent regional tools, refer toSpecial Tools.Caution:In order to avoid damage, install the spark plugs after thecylinder head has been installed on the engine.Caution:Refer toCompone ...