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Home >> Lexus >> 2021 >> LS 500 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular Communication System - Service Information (1 Of 2) >> TELEPHONE AND GPS ANTENNA (for Roof Side) >> Removal [12/2017 - 09/2018] >> 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 the telephone and GPS antenna (roof antenna assembly) removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replacement Part or Procedure Necessary Procedures Effects / Inoperative when not Performed Link
Disconnect cable from negative (-) battery terminal Memorize steering angle neutral point Lane-keeping assist system (for Mono camera type) for Mono Camera type: Refer to INITIALIZATION [12/2017 - 09/2018]
for Stereo Camera type: Refer to INITIALIZATION [12/2017 - 10/2020]
Lane control system (for Stereo camera type)
Parking support brake system*
Pre-collision system (for Mono camera type)
Pre-collision system (for Stereo camera type)
AFS (Front-lighting adaptive system)
Lighting system (EXT) 
  1. Cornering lights
Variable gear ratio steering system Refer to INITIALIZATION [12/2017 - 10/2023]
Parking assist monitor system Refer to INITIALIZATION [12/2017 - 10/2022]
Panoramic View Monitor System Refer to INITIALIZATION [12/2017 - 10/2022]
Initialize rear door sunshade system Rear door sunshade system Refer to INITIALIZATION [12/2017 - ]
Initialize power trunk lid system Power trunk lid system Refer to INITIALIZATION [12/2017 - 10/2020]
for Stereo Camera Type: 
  • Object recognition camera
  • Windshield glass (Including removal and installation)
Adjust object recognition camera
  • Dynamic radar cruise control system (for Stereo camera type)
  • Front camera system (for Stereo camera type)
  • Lane control system (for Stereo camera type)
  • Road sign assist system (for Stereo camera type)
  • Pre-collision system (for Stereo camera type)
  • Automatic high beam system
Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [12/2017 - 10/2020]
for Mono Camera Type: 
  • Forward recognition camera
  • Windshield glass (Including removal and installation)
Adjust forward recognition camera
  • Dynamic radar cruise control system (for Mono camera type)
  • Front camera system (for Mono camera type)
  • Lane-keeping assist system (for Mono camera type)
  • Pre-collision system (for Mono camera type)
  • Automatic high beam system
Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [12/2017 - 09/2018]
Front seat assembly RH (Only for removal and installation) Zero point calibration (Occupant classification system)
  • Occupant classification system
  • Passenger airbag ON/OFF indicator
  • Airbag system (Front passenger side)
  • Seat belt warning system (Front passenger)
Refer to INITIALIZATION [12/2017 - 10/2023]

*: When performing learning using the Techstream.