Caution / Notice / Hint
WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during 4WD ECU 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 |
|---|---|---|---|
| Disconnect cable from negative auxiliary battery terminal | Perform steering sensor zero point calibration | Lane Tracing Assist System | Refer to INITIALIZATION [08/2021 - ] |
| Pre-collision System | |||
| Parking Support Brake System* | |||
| Lighting System (for Gasoline Model) | |||
| Initialize power trunk lid system | Power Trunk Lid System (for Gasoline Model) | Refer to INITIALIZATION [06/2018 - ] |
*: When performing learning using the Techstream.
NOTE:
- After the ignition switch is turned off, the audio and visual system 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.
WARNING:
Be sure to read Precaution thoroughly before servicing.
Refer to PRECAUTION [09/2022 - ]
NOTE:
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.