The purpose of this bulletin is to address transmission software enhancements and calibration issues on 2016 and 2017 model year LX 570 vehicles.

Symptoms:

Harsh shift on hard acceleration, running out of fuel, delayed or harsh transmission engagement, and shift shock in Ist to Znd gear at low water temperature.

Repair Procedure:

Check for authorized modifications labels and calibration ID, reprogram the ECM (PCM) using Techstream, initialize the transmission, and perform transmission initialization and testing.

Note:

Initialization (Reset Memory) MUST be completed for proper vehicle operation.

Manual:

Download: 2017 Lexus ECM Calibration: Transmission Software Enhancements Service Bulletin LSB-0118-17

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