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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001ATT4 |  
                        | Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 - 08/2021] |  
                        | Title: AUDIO / VIDEO: ROOF ANTENNA: REMOVAL; 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021] |  REMOVALCAUTION / NOTICE / HINTThe necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during telephone antenna assembly removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model)
                     
                        
                        
                        
                        
                     
                     
                        
                           | Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function When Necessary Procedures are not Performed | Link |  
                           
                         
                           | Disconnect cable from negative battery terminal | Perform steering sensor zero point calibration | Lane Departure Alert System (w/ Steering Control) | 
                                 
                                    
                                       
                                          ![2019 - 2021 MY Avalon [04/2018 - 08/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Pre-collision System |  
                           | Intelligent Clearance Sonar System* |  
                           | Lighting System (for Gasoline Model with Cornering Light) |  
                           | Memorize steering angle neutral point | Parking Assist Monitor System | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Panoramic View Monitor System | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Front passenger seat | 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)
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                                          ![2019 - 2022 MY Avalon [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing. Click here
                        
                           
                              ![2019 - 2020 MY Avalon [04/2018 - 08/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Gasoline Model): PRECAUTION](/t3Portal/stylegraphics/info.gif)  ![2021 - 2022 MY Avalon [08/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Gasoline Model): PRECAUTION](/t3Portal/stylegraphics/info.gif)    Necessary Procedure After Parts Removed/Installed/Replaced (for HV Model)
                     
                        
                        
                        
                        
                     
                     
                        
                           | Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function When Necessary Procedures are not Performed | Link |  
                           
                         
                           | Disconnect cable from negative auxiliary battery terminal | Perform steering sensor zero point calibration | Lane Departure Alert System (w/ Steering Control) | 
                                 
                                    
                                       
                                          ![2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM (for HV Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Pre-collision System |  
                           | Intelligent Clearance Sonar System* |  
                           | Lighting System (for HV Model with Cornering Light) |  
                           | Memorize steering angle neutral point | Parking Assist Monitor System | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM(for HV Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Panoramic View Monitor System | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  
                           | Front passenger seat | 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)
 | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon HV [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for HV Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing. Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for HV Model): PRECAUTION](/t3Portal/stylegraphics/info.gif)    PROCEDURE1. REMOVE ROOF HEADLINING ASSEMBLY Click here
                        
                           
                              ![2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; INTERIOR PANELS / TRIM: ROOF HEADLINING: REMOVAL](/t3Portal/stylegraphics/info.gif)  ![2021 MY Avalon Avalon HV [08/2020 - 08/2021]; INTERIOR PANELS / TRIM: ROOF HEADLINING: REMOVAL](/t3Portal/stylegraphics/info.gif)  2. REMOVE TELEPHONE ANTENNA ASSEMBLY WITH COVER 
                     
                        
                           | (a) Disconnect the connector. |  |  (c) Remove the washer and holder as shown in the illustration.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction |  (d) Remove the telephone antenna assembly with cover as shown in the illustration.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction |  3. REMOVE TELEPHONE ANTENNA ASSEMBLY (a) Pull the telephone antenna assembly in the direction indicated by the arrow (1) shown in the illustration to disengage the 3 claws and 2 guides.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction (1) |  
                           |   | Remove in this Direction (2) |  (b) Pull the telephone antenna assembly in the direction indicated by the arrow (2) shown in the illustration to disengage the guide and remove the telephone antenna assembly. (c) When reusing the telephone antenna assembly: |