Removal Procedure

Disable the SIR system. Refer to SIR Disabling and Enabling .
Remove the trim covers from the steering column. Refer to Steering Column Trim Covers Replacement .

Fig 1: Ignition Key Alarm Switch, Lock Cylinder, Ignition Switch, Cylinder Case, Case Clamp And Bolts

Courtesy of GENERAL MOTORS CORP.

Insert the key into the ignition lock cylinder (2).
Turn the key to the ACC position.
Use a screwdriver in order to push in the stop pin on the underside of the lock cylinder case (6).
Remove the cylinder from the case.