LEXUS Vehicle Immobilizer System
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Lexus SC 430, 2004 Lexus RX 330, 2004 Lexus LX 470, 2004 Lexus LS 430, and 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
Lexus Vehicle Immobilizer System (LVIS) must be initialized after Engine Control Module (ECM) has been replaced. See appropriate ENGINE IMMOBILIZER SYSTEMS article under DOOR LOCKS & ANTI-THEFT SYSTEMS in ACCESSORIES & EQUIPMENT.