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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 [10/2020 - 11/2021] >> 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 Memorize steering angle neutral point Panoramic view monitor system Refer to INITIALIZATION [10/2017 - 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:
-
w/o Advanced park:
Refer to CALIBRATION [10/2020 - 11/2021]
Rear bumper assembly (Including removal and installation) w/ Advanced Drive: 
  1. Adjust rear LiDAR advanced drive sensor assembly
  • Advanced drive system
  • Rear LiDAR system
-
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.