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 UnitCooling Fan Description and Operation (LFX) Engine Cooling Radiator Fan
System OverviewThe engine cooling fan system consists of2-electric cooling fans and 3-fan relays. Thecooling fan relays are arranged in a series/parallel (S/P)configuration. This allows the engine control module (ECM) tooperate both fans together at low or high speeds using2-fan control circuits. Th ...