Introduction
Some 2016 2017 model year LX 570 vehicles may exhibit one or more of the following HVAC conditions: uneven temperature or air flow between the vents, little or no air flow from the vent(s), improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs).
Procedures
The bulletin provides a step-by-step guide to diagnose and repair the HVAC Servo Motor Malfunction. The procedures include:
* Flash Reprogramming Procedure
* Servo Cleaning Procedure
* Damper Servo Sub-assembly Replacement Procedure
* Servo_Location Guide Replacement Procedure
Warranty Information
The bulletin also includes information on warranty claims and the requirement to submit the correct ten-digit OFP for the vehicle being repaired.
The summary above provides an overview of the Lexus Technical Service Information Bulletin: HVAC Servo Motor Malfunction. The bulletin is applicable to 2016 2017 LX 570 vehicles produced before the Production Change Effective VIN.
Manual:
Download: Lexus Technical Service Information Bulletin: HVAC Servo Motor Malfunction
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