Installation Procedure

WARNING: This page is about a different car, the 2021 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

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Install the front side door lock cylinder retainer (1) into the front side door outside handle bracket (2)
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NOTE:
Ensure that the front side door lock cylinder is engage all the way into the front side door outside handle bracket and front side door lock cylinder retainer. Insert the key into the front side door lock cylinder, turn left to right checking for binding before install the assembly to the vehicle.

Push forward locking the front side door lock cylinder (1) into the front side door outside handle bracket (2)
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Front Side Door Lock Cylinder Rod (1) @ Front Side Door Lock Cylinder - Install
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Front Side Door Latch (2) - Install - Front Side Door Latch Replacement
Ensure that the door lock system operates properly before installing the trim.