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 Unit#PI0574A: Missing OnStar Owner Kit Integration in Vehicle Owner Manual - (May 28, 2013)
Subject:Missing OnStar® Owner Kit Integration in Vehicle Owner ManualModels: 2012-2014 GM Passenger Cars and Light Duty Trucks This bulletin is being revised to include the 2013-2014 model year vehicles, updatethe covered models and the Recommendation/Instructions section. Please discard PI057 ...