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September 19, 2016 Service bulletin

Revision Notice: Applicability section has been updated to include 2016-2017 applicable model year Lexus...

Lexus technical service bulletin L-SB-0021-14 Rev for 2007-2017 Lexus ES350, 2001-2011 Lexus RX and 2004-2017 Lexus RX350 and others.

Bulletin number
L-SB-0021-14 Rev
Component
Equipment
Summary
TSB: Revision Notice: Applicability section has been updated to include 2016-2017 applicable model year Lexus vehicles. The Repair Procedure section, Required Tools & Equipment section, and the Repair Procedure section has been updated. Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information.

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