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 UnitFastener Tightening Specifications - Transmission Unit Automatic Transmission Unit
Fastener Tightening SpecificationsApplicationSpecificationMetricEnglishTransfer Case Bracket-to-Engine Bolt– Hole 450-Y37-lb-ftTransfer Case Bracket-to-Engine Bolts– Holes 1, 2, and 323-Y17-lb-ftTransfer Case Bracket-to-Transfer CaseBolts – Holes 5 and 650-Y37-lb-ftTransfer Case Drain Plug39-Y ...