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 Unit3-5-Reverse and 4-5-6 Clutch Housing Disassemble Automatic Transmission Unit
Table 1: Reluctor Wheel and Piston RemovalTable 2: Clutch Plate RemovalTable 3: 4–5–6 Clutch Hub RemovalTable 4: 4–5–6 Clutch Piston RemovalReluctor Wheel and Piston RemovalReluctor Wheel and Piston RemovalCalloutComponent Name1A/Trans Input Shaft Speed Sensor Reluctor Ring Retaining RingCau ...