Door Lock Cylinder Replacement for Cadillac STS 2008

Important: Do not attempt repairs in order to correct lock cylinder discrepancies. Replace the lock cylinder.

1. Remove the front door outside door handle. Refer to Front Side Door Outside Handle Replacement.
2. Remove the lock cylinder retainer clip (1).
3. Remove the lock cylinder from the outside door handle housing (2).

1. Install the lock cylinder to the outside door handle housing (2).
2. Install the lock cylinder retainer clip (1).
3. Install the front door outside door handle. Refer to Front Side Door Outside Handle Replacement.