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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Door Lock System - Service Information (2 Of 2) >> Door Control Receiver >> 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 the electrical key and TPMS receiver assembly removal/installation are shown below.

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 - ]
  • Tire pressure warning ECU and receiver
  • Tire pressure warning valve and transmitter
  • Register transmitter ID
  • Initialize tire pressure warning system
  • Perform tire position identification
  • When DTC detection conditions of "transmitter ID not received" DTC are met, TPWS indicator blinks for 1 minute, and then illuminates.
  • Tire pressure warning function
for Initialization:
Refer to INITIALIZATION [10/2017 - 10/2023]
for Registration:
Refer to REGISTRATION [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.