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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001B4TB |  
                        | Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 - 08/2020] |  
                        | Title: CELLULAR COMMUNICATION: BACK-UP BATTERY: REMOVAL; 2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020] |  REMOVALCAUTION / NOTICE / HINTThe necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during back-up battery 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 |  
                           | back-up battery | Perform the reset back-up battery condition | Safety Connect System | 
                                 
                                    
                                       
                                          ![2019 - 2020 MY Avalon [04/2018 - 08/2020]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): INITIALIZATION](/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 |  
                           | back-up battery | Perform the reset back-up battery condition | Safety Connect System | 
                                 
                                    
                                       
                                          ![2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for HV Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)  |  PROCEDURE1. REMOVE DCM (TELEMATICS TRANSCEIVER) Click here
                        
                           
                              ![2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL](/t3Portal/stylegraphics/info.gif)  2. REMOVE BACK-UP BATTERY (a) Disengage the 2 claws and remove the battery cover as shown in the illustration.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction |  (b) Disconnect the connector and remove the back-up battery as shown in the illustration.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction |  |