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DTC U0305-57: Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component [05/2019 - ]: Procedure

WARNING: This page is about a different car, the 2021 Lexus NX 300h, 2020 Lexus NX 300h, and 2019 Lexus NX 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR DTC 
    1. Check for DTCs.

      for Front Radar Sensor: Refer to DTC CHECK / CLEAR [05/2019 - ]

      for Front Recognition Camera: Refer to DTC CHECK / CLEAR [05/2019 - ]

      Body Electrical > Front Radar Sensor > Trouble Codes 

      Chassis > Front Recognition Camera > Trouble Codes 

      Result

      Result Proceed to
      DTC U030557 (Front Radar Sensor) and U032257 (Front Recognition Camera) are output A
      Only DTC U030557 (Front Radar Sensor) is output B

    Result: 

    REPLACE FORWARD RECOGNITION CAMERA. Refer to  REMOVAL [05/2019 - ] 

    Result: 

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to  REMOVAL [05/2019 - 07/2020]  , or refer to  REMOVAL [07/2020 - ]