Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001BTAR
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 - 08/2021]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HV Model): PRECAUTION; 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

NOTICE:

  • After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal.
  • When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the terminal is reconnected.

    System Name

    See Procedure

    Lane Departure Alert System (w/ Steering Control)

    2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2021 MY Avalon Avalon HV [08/2020 - 08/2021]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

    Intelligent Clearance Sonar System

    Parking Assist Monitor System

    Panoramic View Monitor System

    Pre-collision System

    Lighting System (for HV Model with Cornering Light)

PRECAUTION FOR NAVIGATION SYSTEM

NOTICE:

  • When replacing the radio and display receiver assembly or navigation ECU, always replace it with a new one. If a radio and display receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly or navigation ECU may not operate normally.
  • When performing the following work, the navigation system may restart when turning the power switch on (ACC) (due to radio and display receiver assembly and navigation ECU certification).
    • Repair or replace the negative (-) auxiliary battery terminal due to it being disconnected or depleted.
    • The radio and display receiver assembly or navigation ECU replacement or removal and installation.
  • When replacing the DCM (telematics transceiver), make sure to replace it with a new one
  • After replacing the radio and display receiver assembly, if "New software is not compatible with the system. Contact your dealer." is displayed on the multi-display, update the software of the navigation ECU.
  • After replacing the navigation ECU, if "New software is not compatible with the system. Contact your dealer." is displayed on the multi-display, update the software of the radio and display receiver assembly.

(a) If any of the following parts are replaced, refer to Initialization in Repair Instruction.

Click here 2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2021 MY Avalon Avalon HV [08/2020 - 08/2021]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

  • Radio and display receiver assembly*
  • DCM (telematics transceiver)
  • *: After replacing the radio and display receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, SiriusXM radio ID registration is necessary (w/ SXM Function).