Problem Symptoms Table [11/2021 - ]

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.

ELECTRONIC SHIFT LEVER SYSTEM

Symptom	Suspected Area	Link
Shift state does not change correctly or shift position indicator displays shift state other than actual	Initialization and learning has not been performed after replacing the shift control actuator assembly (shift actuator ECU)	Refer to UTILITY [11/2021 - ]
Shift state cannot be changed from P to any other position	The brake pedal is not depressed or is lightly depressed	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
	The brake pedal was depressed after the shift operation was performed
	The shift operation was performed at the same time the brake pedal was depressed
	Shift operation was performed when READY indicator light was blinking
	Shift state was changed to S
	Shift operation was performed when READY indicator light was not illuminated
	Shift operation was performed when accelerator pedal was depressed
	Auxiliary battery is discharged or voltage is low	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	When stopped on an incline, a shift operation was performed with the READY indicator not illuminated	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
	When "Braking Power Low Stop in a Safe Place See Owner's Manual" is displayed on the multi-information display, despite depressing the brake pedal and moving the shift lever, "Press Brake to Shift" is displayed	Release the brake pedal and depress it again, and then operate the shift lever.
Shift state cannot change to P	The P position switch was operated while driving	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
	The P position switch was operated when the READY indicator was flashing
	Auxiliary battery is discharged or voltage is low	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Inspect the ECU supply power	Refer to ECU Power Source Circuit [11/2021 - ]
	Fail-safe is temporarily being performed	Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [11/2021 - ] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]
The shift state changed to P unintentionally	P position switch was operated unintentionally	Be careful not to touch the P position switch unintentionally
	The ignition switch was turned off	To change the shift state to other than P, turn the ignition switch to ON (IG)
	Fail-safe is temporarily being performed	Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [11/2021 - ] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]
	Attempt to exit the vehicle with the shift state in other than P (driver door open, driver seat belt buckle OFF, brake OFF)	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
Does not change to shift state S	Shift state is being changed to S from a state other than D	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
Does not change to shift state S	Auxiliary battery is discharged or voltage is low	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
Does not change to shift state N	The shift lever operation time was short	Hold the shift lever in N for a certain amount of time
Does not change to shift state N	The shift lever was not held in N long enough while stopped or driving at low speeds	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
While performing a shift lever operation, the shift state changed to a state not intended	After performing a shift operation, the shift lever was unintentionally pulled back to another position	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
The shift state changed to N unintentionally	The shift lever returned to the home position too slowly	Check for objects hanging from the shift lever, modifications to the shift knob, foreign matter, etc.
	The shift lever was operated while driving or moved due to an object hanging from it	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
	The shift state was changed to D while reversing
	The P position switch was repeatedly pressed while driving
	The P position switch was unintentionally pressed and held while driving
	The shift state was changed to R while driving forward
	Auxiliary battery is discharged or voltage is low	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
The shift state cannot be changed to D or R	The shift lever returned to the home position too slowly	Check for objects hanging from the shift lever, modifications to the shift knob, foreign matter, etc.
	The shift lever was not moved fully or operation time was too short	Securely move the shift lever to each position.
	The READY indicator light not illuminated	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
	The shift state was changed to D while reversing
	The shift state was changed to R while driving forward
	Auxiliary battery is discharged or voltage is low	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	The brake pedal is not depressed or is lightly depressed	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
	When the vehicle was stopped in shift state N, the brake pedal was depressed after the shift operation was performed
	When the vehicle was stopped in shift state N, the shift operation was performed at the same time the brake pedal was depressed
	The shift lever was operated while the accelerator pedal was depressed
	When "Braking Power Low Stop in a Safe Place See Owner's Manual" is displayed on the multi-information display, despite depressing the brake pedal and moving the shift lever, "Press Brake to Shift" is displayed	Release the brake pedal and depress it again, and then operate the shift lever.
Supply power does not turn off (while the ignition switch is ON (IG))	When shift state is in N, the ignition switch was pushed within a certain amount of time of moving the shift lever to N	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
The shift indicator does not illuminate or shift position indicator does not display the selected shift position	Initialization and learning has not been performed after replacing the shift control actuator assembly (shift actuator ECU)	Refer to UTILITY [11/2021 - ]
	Auxiliary battery is discharged or voltage is low	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Inspect the ECU supply power	Refer to ECU Power Source Circuit [11/2021 - ]
	Shift indicator malfunction	Refer to REMOVAL [11/2021 - ]
Electronic shift lever system warning message is displayed on the combination meter assembly	Check for vehicle control history (RoB)	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
	Auxiliary battery is discharged or voltage is low	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Inspect the ECU supply power	Refer to ECU Power Source Circuit [11/2021 - ]
	Fail-safe is temporarily being performed	Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [11/2021 - ] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]
Advanced Park was interrupted or canceled	Shift lever was moved while Advanced Park was operating	Refer to VEHICLE CONTROL HISTORY (RoB) [11/2021 - 03/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [03/2023 - ]
Advanced Park was interrupted or canceled	P position switch was operated while Advanced Park was operating