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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Monitor System - Service Information (1 Of 3) >> ULTRASONIC SENSOR (for Rear) >> Removal [10/2022 - 10/2023] >> Caution / Notice / Hint

Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed, installed or replaced during rear ultrasonic sensor removal/installation are shown below.

NECESSARY PROCEDURE AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedures Necessary Procedures Effect/Inoperative Function When Necessary Procedures are not Performed Link
Disconnect cable from negative (-) auxiliary battery terminal Operate the multiplex network master switch assembly (retractable outer mirror switch) to extend and retract the outer rear view mirror assembly Parking support brake system Refer to INITIALIZATION [10/2022 - ]
Initialize rear door sunshade system Rear door sunshade system Refer to INITIALIZATION [10/2017 - ]
Ultrasonic sensor
  • Ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Parking support alert system
  • Parking support brake system
  • Advanced park
w/ Advanced park:
Refer to CALIBRATION [10/2022 - 10/2023]
w/o Advanced park:
Refer to CALIBRATION [10/2022 - 10/2023]
Rear bumper assembly (Including removal and installation) w/ Advanced Drive: 
  1. Adjust rear LiDAR advanced drive sensor assembly
  • Advanced drive system
  • Rear LiDAR system
Refer to ADJUSTMENT [11/2021 - ]
When the luggage compartment door is opened using a mechanical key Initialize luggage closer motor assembly The power trunk lid does not operate Refer to INITIALIZATION [10/2020 - 10/2023]

HINT: 

When the cable is disconnected/reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.