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 UnitHigh Mount Stop Lamp Replacement (Terrain) Lighting Exterior Lighting Tail Lamp
High Mount Stop Lamp ReplacementCalloutComponent NamePreliminary ProcedureRemove the rear end spoiler assembly. Refer toRear End Spoiler Replacement1High Mount Stop Lamp Screw (Qty:-2)Caution:Refer toFastener Caution.Tighten2.5-Y(22-lb-in)2High Mount Stop Lamp AssemblyProcedureThe high mount stop la ...