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Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during rack and pinion power steering gear assembly removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED (FOR HV MODEL)

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Auxiliary battery terminal is disconnected/reconnected Perform steering sensor zero point calibration Lane Control System Refer to INITIALIZATION [12/2019 - ]
Parking Support Brake System*1
Pre-collision System
Lighting System (EXT) (w/ AFS)
Initialize back door lock Power Door Lock Control System Refer to INITIALIZATION [12/2019 - 11/2023]
Reset back door close position Power Back Door System Refer to INITIALIZATION [12/2019 - 11/2023]
Replacement of ECM Perform Vehicle Identification Number (VIN) registration DTC is output Refer to REGISTRATION [12/2019 - ]
  • Replacement of engine assembly
  • Gas leak from exhaust system is repaired
Perform Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [10/2021 - ]
Replacement of inverter with converter assembly Resolver learning
  • DTCs are stored
  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
  • Shock or vibration during acceleration
for 2WD: Refer to UTILITY [12/2019 - 11/2023]
for AWD: Refer to UTILITY [12/2019 - 11/2023]
Replacement of hybrid vehicle transaxle assembly
  • Resolver learning
  • Initialize resolver
Front bumper assembly*2 Front television camera view adjustment Panoramic View Monitor System Refer to CALIBRATION [10/2022 - 11/2023]
Replacement or removal and installation of 2 or more parts: 
  • Front television camera assembly, radiator grille sub-assembly or front bumper assembly
  • Rear television camera assembly
  • Side television camera assembly LH or outer rear view mirror assembly LH
  • Side television camera assembly RH or outer rear view mirror assembly RH
Television camera view adjustment Panoramic View Monitor System Refer to CALIBRATION [10/2022 - 11/2023]
  • Suspension, tires, etc.

    (The vehicle height changes because of suspension or tire replacement)

Rear television camera assembly optical axis (Back camera position setting) Parking Assist Monitor System Refer to CALIBRATION [10/2022 - ]
Parking assist ECU initialization Panoramic View Monitor System Refer to CALIBRATION [10/2022 - 11/2023]
Perform headlight ECU sub-assembly LH initialization Lighting System (EXT) (w/ AFS) Refer to INITIALIZATION [12/2019 - 11/2023]
  • Replacement of headlight ECU sub-assembly LH
  • Replacement of headlight assembly LH
  • Synchronize the vehicle information
  • Perform headlight ECU sub-assembly LH initialization
Lighting System (EXT) (w/ AFS) Refer to INITIALIZATION [12/2019 - 11/2023]
Front wheel alignment adjustment Perform "Calibration".
  • DTCs are stored
  • ABS warning light illuminates
  • Brake system warning light (yellow indicator) illuminates
  • Slip indicator light illuminates
  • VSC disabled or malfunctions
Refer to UTILITY [12/2019 - 11/2023]
Rack and pinion power steering gear assembly
  • Perform torque sensor zero point calibration
  • Assist map writing
  • DTCs are output
  • EPS warning light illuminates
Refer to CALIBRATION [12/2019 - 11/2023]

*1: Learning can also be performed using the GTS.

*2: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.

NECESSARY PROCEDURES 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
Battery terminal is disconnected/reconnected Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted Stop and Start System Refer to PRECAUTION [10/2022 - 11/2023]
Perform steering sensor zero point calibration Lane Control System Refer to INITIALIZATION [12/2019 - ]
Parking Support Brake System*1
Pre-collision System
Lighting System (EXT) (w/ AFS)
Initialize back door lock Power Door Lock Control System Refer to INITIALIZATION [12/2019 - 11/2023]
Reset back door close position Power Back Door System Refer to INITIALIZATION [12/2019 - 11/2023]
Replacement of ECM Perform Vehicle Identification Number (VIN) registration DTC is output Refer to REGISTRATION [10/2022 - ]
Code registration Engine start function Refer to REGISTRATION [10/2022 - 11/2023]
  • Replacement of engine assembly
  • Gas leak from exhaust system is repaired
Perform Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [10/2022 - ]
Replacement of automatic transaxle assembly
  • Perform reset memory
  • Input transaxle compensation code into ECM
  • Perform road test to allow ECM to learn
  • Large shift shock
  • Deterioration of fuel efficiency
for Initialization: Refer to INITIALIZATION [10/2022 - ]
for Registration: Refer to REGISTRATION [10/2022 - ]
Replacement of automatic transaxle fluid ATF thermal degradation estimate reset The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly Refer to INITIALIZATION [10/2022 - ]
Front bumper assembly*3 Front television camera view adjustment Panoramic View Monitor System Refer to CALIBRATION [10/2022 - 11/2023]
Replacement or removal and installation of 2 or more parts: 
  • Front television camera assembly, radiator grille sub-assembly or front bumper assembly
  • Rear television camera assembly
  • Side television camera assembly LH or outer rear view mirror assembly LH
  • Side television camera assembly RH or outer rear view mirror assembly RH
Television camera view adjustment Panoramic View Monitor System Refer to CALIBRATION [10/2022 - 11/2023]
Suspension, tires, etc.
(The vehicle height changes because of suspension or tire replacement)
Rear television camera assembly optical axis (Back camera position setting) Parking Assist Monitor System Refer to CALIBRATION [10/2022 - ]
Parking assist ECU initialization Panoramic View Monitor System Refer to CALIBRATION [10/2022 - 11/2023]
Perform headlight ECU sub-assembly LH initialization Lighting System (EXT) (w/ AFS) Refer to INITIALIZATION [12/2019 - 11/2023]
Front wheel alignment adjustment
  1. Perform "Reset Memory".
  2. Perform "Calibration".
  • VSC is disabled or malfunctions
  • DTCs are output
  • Slip indicator light illuminates
  • ABS warning light illuminates
Refer to UTILITY [12/2019 - 11/2023]
Rack and pinion power steering gear assembly
  • Perform torque sensor zero point calibration
  • Assist map writing
  • DTCs are output
  • EPS warning light illuminates
Refer to CALIBRATION [12/2019 - 11/2023]

*1: Learning can also be performed using the GTS.

*2: Not necessary when ECM replaced with new one

*3: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.

WARNING:
  • The engine assembly with transaxle is very heavy. Be sure to follow the procedure described in the repair information, or the engine lifter may suddenly drop or the engine assembly with transaxle may fall off the engine lifter.
    GTY902589Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a An Object Exceeding Weight Limit of Engine Lifter
  • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    GTY563663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE:
  • After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 2 minutes before disconnecting the cable from the negative (-) auxiliary battery terminal.
  • When the cable is disconnected from the negative (-) auxiliary battery terminal and the security lock setting has been enabled, multi-display operations will be disabled upon next startup unless the password is entered. Be sure to check the security lock setting before disconnecting the cable from the negative (-) auxiliary battery terminal.