Ignition Switch: Removal

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
REMOVE NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY (See REMOVAL )
REMOVE IGNITION SWITCH ASSEMBLY
1. Disconnect the ignition switch connector and unlock warning switch connector.
2. Remove the clamp.
3. Remove the 2 screws and ignition switch.
  
  Fig 1: Locating Ignition Switch And Screw
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002