Electronic Column Lock Module - Disassemble - Off Vehicle (Column Shift)

Remove the upper tilt head components. Refer to Turn Signal Cancel Cam And Upper Bearing Inner Race - Disassemble - Off Vehicle (Column Shift) or Turn Signal Cancel Cam And Upper Bearing Inner Race - Disassemble - Off Vehicle (Floor Shift) .
Remove the key alarm connector (1) from the lock module assembly (2).
Remove the 2 tapping screws from the ignition and key alarm switch assembly (3).

Fig 1: Key Alarm Connector & Lock Module Assembly
Courtesy of GENERAL MOTORS CORP.
Disconnect the park lock cable assembly (1).
The steering column lock cylinder set should be in the OFF-LOCK position.
Insert a small screwdriver into the slot on the lock module assembly and push against the locking tab to remove.

Fig 2: Park Lock Cable Assembly
Courtesy of GENERAL MOTORS CORP.
Remove the 3 pan head tapping screws (1) from the lock module assembly (2).
Important: The lock bolt assembly (4) is under slight spring tension from the lock bolt spring (3). Hold the lock bolt (4) in place while removing the lock module assembly (2).
Remove the lock module assembly (2) and the lock bolt assembly (4) from the steering column tilt head assembly (5).
Remove the lock bolt spring (3) from the lock bolt assembly (4).

Fig 3: Lock Module Assembly, Lock Bolt Assembly, Lock Bolt Spring, Steering Column Tilt Head Assembly & Screws
Courtesy of GENERAL MOTORS CORP.