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 UnitRail Dust Damage Repair Emblems/Decals/Paint
Warning:Refer toEye Protection Warning.Note:If rail dust has penetrated into the basecoat, the panelrequires refinishing. Ensure all the rail dust has been removedprior to refinishing or the rust spots will return.Rail dust damage comes from the tiny iron particles producedfrom the friction between ...