Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Precaution

NOTICE:

• After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 120 seconds before disconnecting the cable from the negative (-) battery terminal.
• When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected.

  System Name	See Procedure
  Lane Control System
  Pre-collision System
  Intelligent Clearance Sonar System
  Parking Assist Monitor System
  Panoramic View Monitor System
  Lighting System (w/ Automatic Headlight Beam Level Control System)
  Power Door Lock Control System
  Power Back Door System (w/ Outside Door Control Switch)

NOTICE:

• When performing the following work, the audio and visual system may restart when turning the engine switch on (ACC) (due to radio receiver assembly and navigation ECU certification).
  • Repair or replace the negative (-) battery terminal due to it being disconnected or depleted.
  • The radio receiver assembly or navigation ECU replacement or removal and installation.
• After replacing the radio receiver assembly, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display, update the software of the navigation ECU.
• After replacing the navigation ECU, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display, update the software of the radio receiver assembly.

Audio And Visual System (for 12.3 Inch Display)

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Parts Location

PARTS LOCATION ILLUSTRATION *1 TELEPHONE MICROPHONE ASSEMBLY *2 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - AMP FUSE - ECU-IG1 NO. 8 FUSE - RADIO NO. 1 FUSE - RADIO NO. 2 FUSE ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Airbag System: Short in Side Squib (RH) Circuit (B1820-B1823)
DESCRIPTION The front side squib RH circuit consists of the airbag sensor assembly and front seat airbag assembly RH. The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met. These DTCs are stored when a malfunction is detected in the front side squib RH ...

Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Emission Control System: Parts Location
PARTS LOCATION ILLUSTRATION *1 CANISTER (CHARCOAL CANISTER ASSEMBLY) *2 FUEL TANK CAP ASSEMBLY *3 PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY) *4 PURGE VALVE (PURGE VSV) *5 ECM *6 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - EFI MAIN RELAY - EFI-MAIN ...