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Home >> Lexus >> 2023 >> RX 500h >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Suspension System (Rear) - Service Information (1 Of 2) >> Rear Coil Spring >> Removal [08/2023 - ] >> 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 coil spring removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED (EXCEPT GASOLINE MODEL)

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Rear wheel alignment adjustment Perform "Calibration"
  • DTCs are stored
  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Electronically controlled brake system does not operate correctly
for PHEV Model: Refer to RESET MEMORY / CALIBRATION [08/2023 - ]
except PHEV Model: Refer to RESET MEMORY / CALIBRATION [10/2022 - ]
w/ Dynamic Rear Steering: 
  1. Rear Toe Adjustment
  • DTCs are stored
  • Steering neutral position deviate
Refer to Rear Toe Adjustment [10/2022 - ]
Suspension parts Rear television camera assembly optical axis (Back camera position setting) Panoramic View Monitor System Refer to CALIBRATION [10/2022 - ]
Parking assist ECU initialization Advanced Park Refer to CALIBRATION [10/2022 - ]
Perform headlight ECU sub-assembly LH initialization Lighting System (w/ Automatic Headlight Beam Level Control System) Refer to INITIALIZATION [10/2022 - ]
Tires
  • Initialization*1*2
  • Tire Position Identification*1*2
Tire Pressure Warning System Refer to Procedures Necessary When Replacing Parts (for Tire Pressure Warning System) table below
Refer to WORK PROCEDURE [08/2023 - ]
Rear television camera assembly optical axis (Back camera position setting)*3 Parking Assist Monitor System Refer to CALIBRATION [10/2022 - ]
Parking assist ECU initialization*3 Panoramic View Monitor System Refer to CALIBRATION [10/2022 - ]
Advanced Park Refer to CALIBRATION [10/2022 - ]
Rear height control sensor sub-assembly LH Perform headlight ECU sub-assembly LH initialization Lighting system (w/ Automatic Headlight Beam Level Control System) Refer to INITIALIZATION [10/2022 - ]

*1: Also necessary after performing a tire rotation.

*2: It is not necessary to perform this procedure if the tire pressure warning valve and transmitters are installed to the same location.

*3: The vehicle height changes because of tire replacement.

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

Replacement Part Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Rear wheel alignment adjustment
  • 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 RESET MEMORY / CALIBRATION [10/2022 - ]
Suspension parts 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 - ]
Advanced Park Refer to CALIBRATION [10/2022 - ]
Perform headlight ECU sub-assembly LH initialization Lighting System (w/ Automatic Headlight Beam Level Control System) Refer to INITIALIZATION [10/2022 - ]
Tires ECU Data Initialization (When performing tire replacement after RoB code X2104 is output) Dynamic Torque Control AWD System Refer to CALIBRATION [10/2022 - ]
  • Initialization*1*2
  • Tire Position Identification*1*2
Tire Pressure Warning System Refer to Procedures Necessary When Replacing Parts (for Tire Pressure Warning System) table below
Refer to WORK PROCEDURE [08/2023 - ]
Rear television camera assembly optical axis (Back camera position setting)*3 Parking Assist Monitor System Refer to CALIBRATION [10/2022 - ]
Parking assist ECU initialization*3 Panoramic View Monitor System Refer to CALIBRATION [10/2022 - ]
Advanced Park Refer to CALIBRATION [10/2022 - ]
Rear height control sensor sub-assembly LH Perform headlight ECU sub-assembly LH initialization Lighting system (w/ Automatic Headlight Beam Level Control System) Refer to INITIALIZATION [10/2022 - ]

*1: Also necessary after performing a tire rotation.

*2: It is not necessary to perform this procedure if the tire pressure warning valve and transmitters are installed to the same location.

*3: The vehicle height changes because of tire replacement.



WARNING:

When compressing the rear coil springs, use a safety stand as shown in the illustration to prevent the vehicle from falling.

GTY1122874Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT: 



COMPONENTS (REMOVAL) 

Fig 1: Rear Coil Spring Removal Components [08/2023 - ]
GTY1126029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Procedure Part Name Code
1 REAR WHEEL - - - -
2 REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY 89408C - - -
3 WIRE HARNESS (w/ AVS) - - - -
4 REAR SUSPENSION ARM COVER 48738 - - -
5 REAR SHOCK ABSORBER ASSEMBLY 48540 See step  5 - -
6 REAR COIL SPRING 48231B See step  6 - -
7 REAR UPPER COIL SPRING INSULATOR 48259A - - -
8 REAR LOWER COIL SPRING INSULATOR 48258C - - -
*A w/o AVS *B w/ AVS
*C for LH Side with Height Control Sensor - -
*1 REAR NO. 2 SUSPENSION ARM ASSEMBLY - -