Some 2016-2018 Lexus GS350 and GS200T vehicles may have a MIL on with DTC P26 1093 (ECM/PCM engine off timer performance no operation). The ECM logic has been modified to reduce the possibility of this condition. Software version 13.30.018 or later is required. New calibrations are as follows:
2016...2WD.........Main 8966330Y0500..........Sub 8966530J3200
2017 ....2WD........Main 896633A20200
2018....4WD........Main 896633A43100
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