Caution / Notice / Hint

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before replacing the hybrid vehicle control ECU, refer to Registration.
Refer to REGISTRATION [10/2018 - 10/2019] Refer to REGISTRATION [10/2019 - 07/2022] Refer to REGISTRATION [07/2022 - ]
After turning power 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.
Refer to INITIALIZATION [10/2018 - 07/2022] Refer to INITIALIZATION [07/2022 - ]

HINT:

Read the freeze frame data using the Techstream. When a malfunction is detected, various engine control parameters are stored as freeze frame data and can be useful for troubleshooting.