Auxiliary trim locking module

An exemplary auxiliary trim locking module is configured for use with a handle including a shank. The handle is mounted for rotation relative to a rose having an aperture defined therein. The auxiliary trim locking module includes a collar defining an opening sized and shaped to receive the shank, a blocking member movably mounted to the collar for movement between a proximal position and a distal position, and a biasing mechanism urging the locking member toward the distal position. The blocking member includes a projection sized and shaped to be received in the aperture, and an arm operable to be manually engaged by a user to shift the blocking member between a proximal position and a distal position.