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 UnitNeutral - Engine Running (Gen 2/Hybrid) Automatic Transmission Unit
When the gear selector is moved to the Neutral (N) position,the hydraulic and electrical system operation is identical to Park(P) range. However, if Neutral is selected after the vehicle wasoperating in Reverse (R), the normally-low 35R pressure controlsolenoid is commanded OFF and the following cha ...