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 UnitBackup Lamp Bulb Replacement Lighting Exterior Lighting Backup Lamp
Backup Lamp Bulb ReplacementCalloutComponent NamePreliminary ProcedureRemove either the Left or Right tail lamp assembly. Refer toTail Lamp Replacement.1Back Up Lamp BulbWarning:Refer toHalogen Bulb Warning.ProcedureDisengage the bulb socket from the lamp assembly by turning the socket counterclockw ...