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Coding All Lock Cylinders Except Ignition Lock Cylinder

WARNING: This page is about a different car, the 2003 Chevrolet Monte Carlo and 2003 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

All of the vehicle's lock cylinders, except the ignition lock cylinder, use a maximum of five tumblers.

  1. Determine the lock cylinder tumbler numbers and their positions. Refer to Ignition Lock Cylinder Coding .
  2. Install the appropriate tumblers accordingly.
  3. Install the lock cylinder cap, if applicable to the lock cylinder. Refer to Capping Procedure for Lock Cylinders with Press-On Caps  or Capping Procedure for Lock Cylinders without Press-On Caps .
  4. Install the lock cylinder actuator arm and retainer on the back of the cylinder, if applicable.