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 UnitSIR Service Precautions Secondary
General Service InstructionsWarning:When performing service on or near the SIR components or theSIR wiring, the SIR system must be disabled. Refer to SIR Disablingand Enabling . Failure to observe the correct procedure could causedeployment of the SIR components, personal injury, or unnecessarySIR s ...