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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Axle And Differential - Service Information (2 Of 2) >> REAR AXLE CARRIER (for AWD) >> Removal [11/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during rear axle carrier sub-assembly removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Rear wheel alignment adjustment for HV Model 
  1. Perform "Calibration"
  • DTCs are stored
  • ABS warning light illuminates
  • Brake system warning light (yellow indicator) illuminates
  • Slip indicator light illuminates
  • Electronically controlled brake system disabled or malfunctions
Refer to UTILITY [11/2023 - ]
for Gasoline Model 
  • Perform reset memory
  • Perform "Calibration"
  • DTCs are stored
  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Electronically controlled brake system does not operate correctly
Refer to UTILITY [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 [11/2023 - ]
w/ AFS: 
  1. Perform headlight ECU sub-assembly LH initialization
Lighting System (EXT) (w/ AFS) Refer to INITIALIZATION [11/2023 - ]

HINT: 

for HV Model 

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

LEARNING COMPLETES WHEN VEHICLE IS DRIVEN

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Stop and Start System Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted Refer to PRECAUTION [11/2023 - ]
Lane Control System Perform steering sensor zero point calibration Refer to INITIALIZATION [12/2019 - ]
Pre-collision System
Lighting System (EXT) (w/ AFS)
LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Power Door Lock Control System Initialize back door lock Refer to INITIALIZATION [11/2023 - ]
Power Back Door System Reset back door close position Refer to INITIALIZATION [11/2023 - ]
Air Conditioning System After the ignition switch is turned to ON, the servo motor standard position is recognized. -


NOTE:

for HV Model 

  • 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.
  • When removing or installing the rear disc brake caliper assembly, pushing back the disc brake piston may cause a large clearance between the brake pads and brake disc. When the brake pedal is depressed with a large clearance between the brake pads and the brake disc, DTC C13DB-00, C13DC-00, C13DD-00, C13DE-00, C1400-00 and/or C140A-00 related to abnormal brake fluid pressure may be stored. Make sure to clear any DTCs after performing this procedure.
  • While the auxiliary battery is connected, even if the ignition switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brake pedal or open/close the doors while the auxiliary battery is connected.

HINT: