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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001B1YU |  
                        | Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 -                    
                                       ] |  
                        | Title: PARK ASSIST / MONITORING: ULTRASONIC SENSOR(for Rear): REMOVAL; 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ] |  REMOVALCAUTION / NOTICE / HINTThe necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during ultrasonic sensor 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 |  
                           | 
                                 
                                    
Rear bumper assembly
Ultrasonic sensor
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Measure ultrasonic sensor detection angle
Ultrasonic sensor detection angle registration
 | 
                                 
                                    
Intelligent Clearance Sonar System
Intuitive Parking Assist System
 | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for Gasoline Model): CALIBRATION](/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 |  
                           | 
                                 
                                    
Rear bumper assembly
Ultrasonic sensor
 | 
                                 
                                    
Measure ultrasonic sensor detection angle
Ultrasonic sensor detection angle registration
 | 
                                 
                                    
Intelligent Clearance Sonar System
Intuitive Parking Assist System
 | 
                                 
                                    
                                       
                                          ![2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for HV Model): CALIBRATION](/t3Portal/stylegraphics/info.gif)  |  PROCEDURE1. REMOVE REAR BUMPER ASSEMBLY Click here
                        
                           
                              ![2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; EXTERIOR PANELS / TRIM: REAR BUMPER: REMOVAL](/t3Portal/stylegraphics/info.gif)  2. REMOVE REAR CENTER ULTRASONIC SENSOR 
                     HINT: 
                        
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
 (a) Disconnect the connector.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction |  (b) Disengage the 4 claws as shown in the illustration. (c) Disengage the 2 claws and remove the rear center ultrasonic sensor as shown in the illustration.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction |  3. REMOVE REAR CORNER ULTRASONIC SENSOR 
                     HINT: 
                        
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
 
                     
                        
                           | (a) Disconnect the connector. |  |  (b) Disengage the 2 claws and remove the rear corner ultrasonic sensor as shown in the illustration.   
                     
                        
                        
                     
                     
                        
                           |   | Remove in this Direction |  4. REMOVE ULTRASONIC SENSOR CLIP 
                     HINT: 
                        
Perform this procedure only when replacement of the ultrasonic sensor clip is necessary.
Use the same procedure for all ultrasonic sensor clips.
 
                     
                        
                           | (a) Disengage the clamp to remove the ultrasonic sensor clip from the wire. |  |  5. REMOVE REAR CENTER ULTRASONIC SENSOR RETAINER 
                     HINT: 
                        
Perform this procedure only when replacement of the rear center ultrasonic sensor retainer is necessary.
When removing the rear center ultrasonic sensor retainer, heat the rear bumper assembly and rear center ultrasonic sensor retainer using a heat light.
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
 (a) Heat the rear bumper assembly and rear center ultrasonic sensor retainer using a heat light at the specified temperature for 3 to 5 minutes. Heating Temperature:  
                     
                        
                        
                     
                     
                        
                           | Item | Temperature |  
                           | Rear Bumper Assembly | 40 to 60°C (104 to 140°F) |  
                           | Rear Center Ultrasonic Sensor Retainer |  
                     CAUTION: 
                        
Do not touch the heat light and heated parts.
Touching the heat light may result in burns.
Touching heated parts for a long time may result in burns.
   
                     
                        
                        
                     
                     
                        
                           | *a | Heated Part |  
                           | *b | Heat Light |  
                     
                        
                           | (b) Remove the rear center ultrasonic sensor retainer. |  |  6. REMOVE REAR CORNER ULTRASONIC SENSOR RETAINER 
                     HINT: 
                        
Perform this procedure only when replacement of the rear corner ultrasonic sensor retainer is necessary.
When removing the rear corner ultrasonic sensor retainer, heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light.
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
 (a) Heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light at the specified temperature for 3 to 5 minutes. Heating Temperature:  
                     
                        
                        
                     
                     
                        
                           | Item | Temperature |  
                           | Rear Bumper Assembly | 40 to 60°C (104 to 140°F) |  
                           | Rear Corner Ultrasonic Sensor Retainer |  
                     CAUTION: 
                        
Do not touch the heat light and heated parts.
Touching the heat light may result in burns.
Touching heated parts for a long time may result in burns.
   
                     
                        
                        
                     
                     
                        
                           | *a | Heated Part |  
                           | *b | Heat Light |  
                     
                        
                           | (b) Remove the rear corner ultrasonic sensor retainer. |  |  |