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 UnitSecondary Timing Chain Guide Installation - Left Side Valvetrain Valvetrain Timing Timing Belt/Chain
Ensure that the left secondary camshaft drive chainguide-(2) is being installed.Position the left secondary camshaft drive chainguide.Caution:Refer toFastener Caution.Install the secondary camshaft drive chain guide bolts andtighten to25-Y(18-lb-ft). ...