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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Service Information (2 Of 2) >> Front Seat Side Airbag Assembly >> 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 front seat airbag 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
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)
 Refer to INITIALIZATION [11/2023 - ]
  • Reclining motor (separate type front seatback spring assembly)*
  • Slide motor (separate type front seat cushion spring assembly)*
 Initialize position control ECU Front Power Seat Control System (w/ Memory) Refer to REGISTRATION [11/2023 - ]

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

WARNING:
GTY607029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  • Be sure to read Precaution thoroughly before servicing.

    Refer to PRECAUTION [11/2023 - ]

  • Wear protective gloves. Sharp areas on the parts may injure your hands.
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.
  • If a front seat airbag assembly has been deployed, replace the front seat airbag assembly, separate type front seatback spring assembly, separate type front seatback pad and separate type front seatback cover with the necessary parts in accordance with the extent of the collision damage.

    for Power Seat: Refer to DISASSEMBLY [11/2023 - ]

    for Manual Seat: Refer to DISASSEMBLY [11/2023 - ]

HINT: 

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. -
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