Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Fail-safe Chart

• If there is a problem with sensor signals or actuator systems, the skid control ECU prohibits power supply to the brake actuator assembly and informs the ECM of a VSC system malfunction.

  The brake actuator assembly turns off the solenoids and the ECM stops its VSC control according to signals from the skid control ECU. The vehicle will operate in a manner similar to a vehicle that is not equipped with ABS, TRAC, VSC and brake hold systems.

  ABS control will be prohibited, but EBD control will continue to the extent that EBD control is possible. If EBD control is impossible, the brake system warning light will come on to warn the driver.

  Click here

• If a VSC system component malfunctions before VSC control begins, VSC control will be prohibited. If a system component malfunctions during VSC control, the system will gradually stop performing control so as not to trigger a sudden change in vehicle operation.

  If it is impossible for control to continue, the warning light comes on to inform the driver of system control termination.

  Click here

• When a malfunction occurs in the VSC system or electric parking brake system, brake hold control prohibits brake hold operation to prevent incorrect operation and protect the system.

  HINT:

  When control is prohibited, the brake hold operated indicator light blinks, and the code for the system where the malfunction occurred during diagnostic mode is displayed by the brake hold standby indicator light.

• If the skid control ECU (brake actuator assembly) detects a malfunction in the SRS system, secondary collision brake control is prohibited to prevent undesired operation and to protect the system.

  HINT:

  When control is prohibited, a message is displayed on the multi-information display in the combination meter assembly.

Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA (a) Using the Techstream, check the vehicle condition (ECU, sensor) when the brake system operates or a DTC is output. CHECK FREEZE FRAME DATA WHEN DTC WAS STORED ...

Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a pa ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Using the driving support systems: LKA (Lane-Keeping Assist)
Summary of functions When driving on highways and freeways with white or yellow lines, this function alerts the driver when the vehicle might depart from its lane and provides assistance by operating the steering wheel to keep the vehicle in its lane. Furthermore, the system also provides st ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Lexus Enform System: Does not Recognize Voice Commands Performed to Contact Support Center
PROCEDURE 1. CHECK COMMUNICATION BASED VOICE RECOGNITION FUNCTION (a) While paying attention to the condition of the spoken voice command, say "Find a gas station in New York" and check that voice recognition is operating normally. HINT: When the voice command is recognized, the content ...