Ignition Switch Cylinder Assembly Removal and Installation (without Keyless Start System): Removal

Disconnect negative (-) cable at battery.
Disable air bag system referring to DISABLING AIR BAG SYSTEM: ADVANCED AIR BAG or DISABLING AIR BAG SYSTEM: EXCEPT ADVANCED AIR BAG .
Remove steering column upper and lower covers.
(Immobilizer model)
Remove immobilizer control module referring to IMMOBILIZER CONTROL MODULE (ICM) REMOVAL AND INSTALLATION .
Remove ignition switch cylinder assembly as follows.
1. Turn ignition key to "ACC" position.
2. Insert 2 mm (0.078 in.) rod (2) through hole (3) and push ignition switch cylinder lock.
3. Detach ignition switch cylinder assembly (1) from steering lock assembly (4).
  
  Fig 1: Identifying Ignition Switch Cylinder Assembly And Steering Lock Assembly
  Courtesy of SUZUKI OF AMERICA CORP.