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.Defroster Valve Replacement
Defroster Valve ReplacementCalloutComponent NamePreliminary ProceduresRemove the HVAC module. Refer toHeater and Air Conditioning Evaporator and Blower Module Removal and Installation.Disconnect all the electrical connectors from componentsassociated with the HVAC module.Remove any components associ ...